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13494-98-9

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13494-98-9 Usage

Description

Yttrium Nitrate Hexahydrate is white crystal or powder that can be employed as laboratory reagent, optical glasses, structural cermics, eletrical components, photo-optical material and reusable catalyst in Bignelli reaction for the synthesis of heterocycles such as pyrimidin-2-ones. It can also used in superconducting materials. Besides, it serves as a precursor of nanoscale coatings of carbon composites and source of yttrium is used to make yttrium-based surfactant mesophases which are promising as adsorbing agents as well as for optically functional species.

Uses

Different sources of media describe the Uses of 13494-98-9 differently. You can refer to the following data:
1. Yttrium Nitrate is applied in ceramics, glass, and electronics. High purity grades are the most important materials for tri-bands Rare Earth phosphors and Yttrium-Iron-Garnets, which are very effective microwave filters. Yttrium Nitrateis a highly water soluble crystalline Yttrium source for uses compatible with nitrates and lower (acidic) pH.
2. It is used as a reagent, in optics, ceramics, glass and electronics. It is used in superconducting materials. It has been reported as a reusable catalyst in Bignelli reaction for the synthesis of heterocycles such as pyrimidin-2-ones. It is a powerful catalyst for the synthesis of some supramolecules such as calix[4]resorcinarenes, 1,8-dioxooctahydroxanthenes, 2-amino-4H-chromenes, and several other organic condensation products.

References

http://www.metall.com.cn/yn.htm http://www.globalsources.com/si/AS/Pangea-International/6008849985851/pdtl/Yttrium-Nitrate/1127081425.htm https://www.alfa.com/en/catalog/012898/ http://www.sigmaaldrich.com/catalog/product/aldrich/237957?lang=en®ion=US

Chemical Properties

white adhering crystals or crystalline powder

Check Digit Verification of cas no

The CAS Registry Mumber 13494-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,9 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 13494-98:
(7*1)+(6*3)+(5*4)+(4*9)+(3*4)+(2*9)+(1*8)=119
119 % 10 = 9
So 13494-98-9 is a valid CAS Registry Number.
InChI:InChI=1/NO3.6H2O.Y/c2-1(3)4;;;;;;;/h;6*1H2;/q-1;;;;;;;+3

13494-98-9 Well-known Company Product Price

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  • Alfa Aesar

  • (12898)  Yttrium(III) nitrate hexahydrate, 99.9% (REO)   

  • 13494-98-9

  • 5g

  • 305.0CNY

  • Detail
  • Alfa Aesar

  • (12898)  Yttrium(III) nitrate hexahydrate, 99.9% (REO)   

  • 13494-98-9

  • 25g

  • 405.0CNY

  • Detail
  • Alfa Aesar

  • (12898)  Yttrium(III) nitrate hexahydrate, 99.9% (REO)   

  • 13494-98-9

  • 100g

  • 767.0CNY

  • Detail
  • Alfa Aesar

  • (12898)  Yttrium(III) nitrate hexahydrate, 99.9% (REO)   

  • 13494-98-9

  • *5x100g

  • 2945.0CNY

  • Detail
  • Aldrich

  • (237957)  Yttrium(III)nitratehexahydrate  99.8% trace metals basis

  • 13494-98-9

  • 237957-25G

  • 363.87CNY

  • Detail
  • Aldrich

  • (237957)  Yttrium(III)nitratehexahydrate  99.8% trace metals basis

  • 13494-98-9

  • 237957-100G

  • 689.13CNY

  • Detail
  • Aldrich

  • (237957)  Yttrium(III)nitratehexahydrate  99.8% trace metals basis

  • 13494-98-9

  • 237957-500G

  • 2,490.93CNY

  • Detail

13494-98-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name Yttrium(III) nitrate hexahydrate

1.2 Other means of identification

Product number -
Other names yttrium(3+),trinitrate,hexahydrate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:13494-98-9 SDS

13494-98-9Synthetic route

yttrium(III) oxide

yttrium(III) oxide

nitric acid
7697-37-2

nitric acid

barium carbonate

barium carbonate

copper(II) oxide

copper(II) oxide

A

barium(II) nitrate

barium(II) nitrate

B

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

C

copper(II) hydroxynitrate

copper(II) hydroxynitrate

Conditions
ConditionsYield
In water nitrates of Ba and Y and a basic nitrate of Cu obtained on treatment of CuO, BaCO3 and Y2O3 with HNO3; soln. evapd. to dryness; X-ray diffraction;
yttrium barium copper oxide

yttrium barium copper oxide

nitric acid
7697-37-2

nitric acid

A

barium(II) nitrate

barium(II) nitrate

B

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

C

copper(II) nitrate

copper(II) nitrate

Conditions
ConditionsYield
In nitric acid byproducts: H2O; dissoln.;
yttrium(III) oxide

yttrium(III) oxide

nitric acid
7697-37-2

nitric acid

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

Conditions
ConditionsYield
Y2O3 dissolved in conc. HNO3;
In water Y2O3 dissolved in dil. HNO3 to pH 2;
In nitric acid Y2O3 dissolved in min. amt. dild. nitric acid (1:1), evapd. to dryness; cooled to room temp.;
yttrium(III) oxide

yttrium(III) oxide

dinitrogen tetraoxide
10544-72-6

dinitrogen tetraoxide

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

Conditions
ConditionsYield
steel bomb, 150°C, 80 atm, 24 h;>99
In neat (no solvent) byproducts: N2O3; heating at 150°C, 80 atm;;
yttrium(III) nitrate hydrate

yttrium(III) nitrate hydrate

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

Conditions
ConditionsYield
In neat (no solvent) heating (160-140°C), vac.;
yttrium(III) oxide

yttrium(III) oxide

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

Conditions
ConditionsYield
With nitric acid In water Dissolving the oxide into reagent grade conc. nitric acid.; Heating the soln. to remove excess HNO3.;
With HNO3 In nitric acid aq. HNO3; dissoln. of oxide in boiling nitric acid;
yttrium(III) oxide

yttrium(III) oxide

Nitrogen dioxide
10102-44-0

Nitrogen dioxide

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

Conditions
ConditionsYield
In neat (no solvent) heating at 150°C in a closed tube for 24 hours;;>99
2NH4(1+)*Y(3+)*5(NO3)(1-)=(NH4)2Y(NO3)5

2NH4(1+)*Y(3+)*5(NO3)(1-)=(NH4)2Y(NO3)5

A

ammonium nitrate

ammonium nitrate

B

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

Conditions
ConditionsYield
In neat (no solvent) thermic decomposition on heating at 232°C (decomposition of NH4NO3 not above 270°C);; thermoanalysis;;
In neat (no solvent) thermic decomposition on heating at 232°C (decomposition of NH4NO3 not above 270°C);; thermoanalysis;;
yttrium(III) oxide

yttrium(III) oxide

neodymium(III) oxide

neodymium(III) oxide

nitric acid
7697-37-2

nitric acid

A

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

B

neodymium(III) nitrate
16454-60-7

neodymium(III) nitrate

Conditions
ConditionsYield
Heating;
yttrium(lll) nitrate hexahydrate

yttrium(lll) nitrate hexahydrate

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

Conditions
ConditionsYield
With nitric acid Heating;
barium(II) nitrate

barium(II) nitrate

ammonium oxalate

ammonium oxalate

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

copper(II) nitrate

copper(II) nitrate

yttrium barium cuprate

yttrium barium cuprate

Conditions
ConditionsYield
In water soln. of Y3+, Ba2+ and Cu2+ nitrates mixed to ratio of 1:2:3 = Y3+:Ba2+:Cu2+, 30% excess satd. soln. of (NH4)2C2O4 added at 25°C, pH = 2.38-2.53, pptn. of YBa2Cu3(C2O4(2-))n, centrifuged, dried (100°C), calcinated 860°C for 6 h;100%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

terbium(III) nitrate

terbium(III) nitrate

Y2O3#dotTb(3+)

Y2O3#dotTb(3+)

Conditions
ConditionsYield
In water; ethylene glycol stoich. amt. of Y and Tb salts stirred with H2O; heated at 140°C for 1 h; mixed by stirring for 4 h in refluxing diethylene glycol at 180°C; water removed; filtered; washed (MeOH); dried at 100°Cfor 1 h; heat treated for 3 h at ...;100%
With citric acid; formaldehyde In 2-methoxy-ethanol nitrates dissolved in 2-methoxyethanol; citric acid added, then formaldehyde added; placed on sapphire filtrate; spun at 2000 rpm for 100 s; dried in air at 100°C, baked at 600°C; repeated up to 15 times, annealed at 900°C for 2 h;
methanol
67-56-1

methanol

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

2,2'-[pyridine-2,6-dyilbis(methan-1-yl-1-ylidene)]bis(hydrazinecarboxamide)

2,2'-[pyridine-2,6-dyilbis(methan-1-yl-1-ylidene)]bis(hydrazinecarboxamide)

water
7732-18-5

water

[Y(NO3)3(2,2'-[pyridine-2,6-diylbis(methan-1-yl-1-ylidene)]bis(nydrazinecarboxamide))]*4H2O*MeOH

[Y(NO3)3(2,2'-[pyridine-2,6-diylbis(methan-1-yl-1-ylidene)]bis(nydrazinecarboxamide))]*4H2O*MeOH

Conditions
ConditionsYield
In acetonitrile 1:1 mixt. stirred overnight; filtered, evapd. (vac.), elem. anal.;99%
methanol
67-56-1

methanol

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

(2S,2'S)-N,N'-[pyridine-2,6-diylbis(methan-1-yl-1-ylidene)]bis[2-(methoxymethyl)pyrrolidin-2-amine]

(2S,2'S)-N,N'-[pyridine-2,6-diylbis(methan-1-yl-1-ylidene)]bis[2-(methoxymethyl)pyrrolidin-2-amine]

water
7732-18-5

water

[Y(NO3)3(2S,2'S-N,N,-[pyridine-2,6-diylbis(methan-1-yl-1-ylidene)]bis(2-methoxymethyl)pyrrolidin-1-amine)]*MeOH*H2O

[Y(NO3)3(2S,2'S-N,N,-[pyridine-2,6-diylbis(methan-1-yl-1-ylidene)]bis(2-methoxymethyl)pyrrolidin-1-amine)]*MeOH*H2O

Conditions
ConditionsYield
In methanol 1:1 mixt. stirred overnight; evapd. (vac.), elem. anal.;99%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

ethylene glycol
107-21-1

ethylene glycol

squaric acid
2892-51-5

squaric acid

Y(squarate)1.5(ethylene glycol)

Y(squarate)1.5(ethylene glycol)

Conditions
ConditionsYield
In water; ethylene glycol High Pressure; mixt. Ln(NO3)3, squaric acid, ethylene glycol and water were heated in Teflon-lined autoclave at 180°C for 3 days and cooled to room temp. at 12°C/h; product was filtered, washed with water, rinsed with EtOH and dried in desiccator at room temp.; elem. anal.;99%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

oxalic acid
144-62-7

oxalic acid

yttrium oxalate monohydrate

yttrium oxalate monohydrate

Conditions
ConditionsYield
In water addn. of soln. of H2C2O4 (0.20 M) to soln. of Y salt (0.025 M) (room temp., pH = 2.32+-0.20; pptn.);96.36%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

(21S,25S)-8,15,23-trioxo-1-((4-((1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecan-2-yl)methyl)phenyl)amino)-1-thioxo-2,7,16,22,24-pentaazaheptacosane-21,25,27-tricarboxylic acid

(21S,25S)-8,15,23-trioxo-1-((4-((1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecan-2-yl)methyl)phenyl)amino)-1-thioxo-2,7,16,22,24-pentaazaheptacosane-21,25,27-tricarboxylic acid

C48H72N10O17S(86)Y(1-)

C48H72N10O17S(86)Y(1-)

Conditions
ConditionsYield
With nitric acid; sodium acetate; ascorbic acid at 95℃; for 0.333333h; pH=Ca. 5.5 - 6; Inert atmosphere;95%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

copper(II) nitrate

copper(II) nitrate

barium(II) hydroxide

barium(II) hydroxide

3Cu(2+)*2Ba(2+)*Y(3+)*5CH3COCHCOCH3(1-)*8CH3O(1-)*CH3OH=Cu3Ba2YC34H63O19

3Cu(2+)*2Ba(2+)*Y(3+)*5CH3COCHCOCH3(1-)*8CH3O(1-)*CH3OH=Cu3Ba2YC34H63O19

Conditions
ConditionsYield
With acetylacetone In methanol methanolic soln. contg. equimolar amts. Cu(NO3)2, rare earth nitrate, Ba(OH)2 and acetylacetone (pH 8, piperidine) heated (60°C) and stirred until a homogeneous lilac ppt. started to settle; ppt. filtered out, washed (MeOH and ether), dried (vac. desiccator, silica gel), elem. anal.;92%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

N-(4-benzoylidene-3-methyl-1-phenylpyrazol-5-one)isonicotinylhydrazine
329247-15-6

N-(4-benzoylidene-3-methyl-1-phenylpyrazol-5-one)isonicotinylhydrazine

Y(N-(4'-benzoylidene-3'-methyl-1'-phenylpyrazol-5'-one)isonicotinylhydrazine)2(NO3)3

Y(N-(4'-benzoylidene-3'-methyl-1'-phenylpyrazol-5'-one)isonicotinylhydrazine)2(NO3)3

Conditions
ConditionsYield
In ethanol refluxing (4 h); concentration, washing (hot C6H6), dissoln. in hot EtOH, pptn. on Et2O addn. (stirring), collection, drying (vac., over P2O5); elem. anal.;92%
zirconyl nitrate

zirconyl nitrate

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

yttria stabilized zirconia

yttria stabilized zirconia

Conditions
ConditionsYield
With urea In water High Pressure; hydrothermal treatment at 80 °C for 24 h and at 180 °C for48 h under autogenous pressure; ppt. filtered, washed with water, ethanol, dried at vac. at 60 °C; powder XRD;90%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

ammonia
7664-41-7

ammonia

water
7732-18-5

water

oxalic acid
144-62-7

oxalic acid

A

ammonium dioxalatoyttrate(III)

ammonium dioxalatoyttrate(III)

B

Y(3+)*OH(1-)*C2O4(2-)=Y(OH)C2O4

Y(3+)*OH(1-)*C2O4(2-)=Y(OH)C2O4

Conditions
ConditionsYield
In water addn. of aq. NH3 soln. within 1 min to a sol. of Y(NO3)3 and H2O (in a glass vessel under agitation with a paddle mixer), addn. of oxalic acid to the Y(OH)3 slurry (concn. of acid 0.1 mol/dm**3, addn. time 10 s, molar ratio H2C2O4:Y(OH)3=1.75); filtration (vac. suction), washing with H2O, drying on a hot plate;A 89%
B 11%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

1,2-dihydro-1,5-dimethyl-2-phenyl-4-formyl(benzhydrazide)-3H-pyrazol-3-one
76644-54-7

1,2-dihydro-1,5-dimethyl-2-phenyl-4-formyl(benzhydrazide)-3H-pyrazol-3-one

nitratobis[N'-((2,3-dimethyl-5-oxo-1-phenyl-3-pyrazolin-4-yl)methylidene)benzohydrazide-κ3-N'O,O]yttrium(III) dinitrate

nitratobis[N'-((2,3-dimethyl-5-oxo-1-phenyl-3-pyrazolin-4-yl)methylidene)benzohydrazide-κ3-N'O,O]yttrium(III) dinitrate

Conditions
ConditionsYield
In methanol; ethanol soln. Y(NO3)3 in MeOH added dropwise with stirring to a boiling soln. ofN'-((2,3-dimethyl-5-oxo-1-phenyl-3-pyrazolin-4-yl)methylidene)benzohydr azide (1:2.1 mol) in EtOH; reflux about 4 h; cooling; ppt. filtered off; washed (i-PrOH, hot C6H6); crystd. (MeOH); dried (vac., P2O5); elem. anal.;89%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

silver nitrate

silver nitrate

N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

potassium iodide
7681-11-0

potassium iodide

lead(II) iodide

lead(II) iodide

16C3H7NO*2Y(3+)*Pb3Ag10I22(6-)

16C3H7NO*2Y(3+)*Pb3Ag10I22(6-)

Conditions
ConditionsYield
at 60℃; for 3h;87%
Tetraisopropyl methylenediphosphonate
1660-95-3

Tetraisopropyl methylenediphosphonate

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

bis(tetrakis(O-isopropyl)methylenediphosphonate)yttrium(III) nitrate

bis(tetrakis(O-isopropyl)methylenediphosphonate)yttrium(III) nitrate

Conditions
ConditionsYield
In acetonitrile in air; soln. was concd., ppt. was washed with ether, dried in vac., elem. anal.;86%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

2-(pyridin-2-yl)-3-((pyridin-2-ylmethylene)-amino)-2,3-dihydroquinazolin-4(1H)-one
55137-76-3

2-(pyridin-2-yl)-3-((pyridin-2-ylmethylene)-amino)-2,3-dihydroquinazolin-4(1H)-one

[Y(2-pyridine-2-yl-3-[pyridine-2-carboxylideneamino]-1,2-dihydroquinazolin-4-(3H)-one)2(H2O)2NO3](NO3)2

[Y(2-pyridine-2-yl-3-[pyridine-2-carboxylideneamino]-1,2-dihydroquinazolin-4-(3H)-one)2(H2O)2NO3](NO3)2

Conditions
ConditionsYield
With NH3 In methanol soln. of nitrate and ligand in MeOH was refluxed for 2 h; alcoholic NH3 was added to pH 6.5; refluxed for 3-4 h; concd.; residue macerated with petroleum ether; filtered; washed (H2O, ether); dried in air; elem. anal.;84%
3-phenyl-4-benzoyl-isoxazol-5-one
41836-94-6

3-phenyl-4-benzoyl-isoxazol-5-one

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

Yb(PBI)3

Yb(PBI)3

Conditions
ConditionsYield
In ethanol; water addn. of alc. soln. of ligand to hot aq. soln. of metal salt (dropwise, stirring), heating (water bath, 10 min), pptn.; sepn. (filtration under suction), drying (air), storing (over fused CaCl2); elem. anal.;80%
1,10-Phenanthroline
66-71-7

1,10-Phenanthroline

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

isophthalic acid
121-91-5

isophthalic acid

[Y2(1,10-phenanthroline)2(1,3-benzenedicarboxylate)3]

[Y2(1,10-phenanthroline)2(1,3-benzenedicarboxylate)3]

Conditions
ConditionsYield
With NaOH In water High Pressure; Y-salt was dissolved in water, isophthalic acid and phenanthroline were added under stirring, pH was adjusted to 5 (NaOH), the mixt. was honogenized for 30 min at room temp., sealed, heated at 180°C for 72 h under autogeneous pressure; crystals were filtered under vac., dried at ambient temp.; elem. anal.;80%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

4-formyl-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one
950-81-2

4-formyl-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one

[Y(4-formyl-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one)2(NO3)2]NO3
230976-36-0

[Y(4-formyl-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one)2(NO3)2]NO3

Conditions
ConditionsYield
In ethyl acetate dropwise addn. of soln. of Ln(NO3)3 to soln. of pyrazolinone, refluxing (10 min), pptn. on cooling to room temp.; filtration, washing (hot EtOAc, hot benzene), recrystn. (MeCN), drying (vac., over P2O5); elem. anal.;80%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

C30H38Cu2N6O4
1620000-99-8

C30H38Cu2N6O4

water
7732-18-5

water

acetone
67-64-1

acetone

C30H40Cu2N9O14Y*C3H6O

C30H40Cu2N9O14Y*C3H6O

Conditions
ConditionsYield
for 0.166667h; Heating;80%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

1,2-bis(pyrrolidin-2-on-1-yl)-1-etane
15395-91-2

1,2-bis(pyrrolidin-2-on-1-yl)-1-etane

Y2(N,N'-ethylenebis(pyrrolidin-2-one))3(NO3)6

Y2(N,N'-ethylenebis(pyrrolidin-2-one))3(NO3)6

Conditions
ConditionsYield
In acetonitrile 2 equiv. of ligand; pptn. on mixing or after concn. at room temp. (not specified), collection, washing (MeCN), drying (vac., over silica gel); elem. anal.;76%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

Ethane-1-phosphono-2-sulphonic acid
75407-14-6

Ethane-1-phosphono-2-sulphonic acid

yttrium 2-phosphonatoethanesulfonate
1099630-58-6

yttrium 2-phosphonatoethanesulfonate

Conditions
ConditionsYield
With NaOH In water H2O added to mixt. of aq. solns. of Y salt, (HO)2P(O)C2H4SO3H and NaOH (molar ratio 1:1:2); homogenized by shaking for 2 min; heated at 170°C for 24 h; detd. by X-ray powder diffraction;76%
With NaOH In water other Radiation; H2O added to mixt. of aq. solns. of Y salt, (HO)2P(O)C2H4SO3H and NaOH (molar ratio 1:1:2); microwave heated at 170°C for 2-24 h with stirring (0-900 1/min); detd. by X-ray powder diffraction;32%
With NaOH In water High Pressure; under hydrothermal conditions; aq. soln. contg. Y salt, (HO)2P(O)C2H4SO3H and NaOH (molar ratio 1:1:2 or 1:1:3) heated at 170°C for 24 h; detd. by X-ray powder diffraction;
[2,2]bipyridinyl
366-18-7

[2,2]bipyridinyl

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

2-hydroxyl-4-carboxylbenzenesulfonic acid
88122-95-6

2-hydroxyl-4-carboxylbenzenesulfonic acid

water
7732-18-5

water

Y(3+)*H2O*C7H3O6S(3-)*C10H8N2

Y(3+)*H2O*C7H3O6S(3-)*C10H8N2

Conditions
ConditionsYield
With sodium hydroxide at 120℃; for 72h; pH=5; Autoclave; High pressure;76%
1,10-Phenanthroline
66-71-7

1,10-Phenanthroline

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

water
7732-18-5

water

benzene-1,2-dicarboxylic acid
88-99-3

benzene-1,2-dicarboxylic acid

[Y2(1,10-phenanthroline)2(1,2-benzenedicarboxylate)3]*H2O

[Y2(1,10-phenanthroline)2(1,2-benzenedicarboxylate)3]*H2O

Conditions
ConditionsYield
With NaOH In water High Pressure; Y-salt was dissolved in water, phthalic acid and phenanthroline were added under stirring, pH was adjusted to 5 (NaOH), the mixt. was honogenized for 30 min at room temp., sealed, heated at 180°C for 72 h under autogeneous pressure; crystals were filtered under vac., dried at ambient temp.; elem. anal.;75%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

tris(2-[(3,4-dihydroxybenzylidene)imino]ethyl)amine
1070776-25-8

tris(2-[(3,4-dihydroxybenzylidene)imino]ethyl)amine

[Y(tris(2-[(3,4-dihydroxybenzylidene)imino]ethyl)amine)(NO3)2]NO3*H2O
1070776-40-7

[Y(tris(2-[(3,4-dihydroxybenzylidene)imino]ethyl)amine)(NO3)2]NO3*H2O

Conditions
ConditionsYield
In methanol a soln. of Y salt added slowly to a soln. of ligand, stirred for 2 h at room temp.; filtered, washed (MeOH), dried (vac.); elem. anal.;75%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

ethanol
64-17-5

ethanol

C13H12N2O5

C13H12N2O5

C13H10N2O5(2-)*NO3(1-)*3C2H6O*Y(3+)

C13H10N2O5(2-)*NO3(1-)*3C2H6O*Y(3+)

Conditions
ConditionsYield
With sodium acetate for 8h; pH=5; Reflux;75%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

periciazine
2622-26-6

periciazine

Y(3+)*2C21H23N3OS*3NO3(1-) = [Y(C21H23N3OS)2(NO3)2](NO3)

Y(3+)*2C21H23N3OS*3NO3(1-) = [Y(C21H23N3OS)2(NO3)2](NO3)

Conditions
ConditionsYield
In ethanol 15 min; pptn. washing (EtOH), drying (vac.); elem. anal.;74%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

N,N''-bis[(benzylcarbamoyl)methyl]diethylenetriamine-N,N',N''-triacetic acid

N,N''-bis[(benzylcarbamoyl)methyl]diethylenetriamine-N,N',N''-triacetic acid

{Y(N,N''-bis(benzylcarbamoylmethyl)diethylenetriamine-N,N',N''-triacetate)(H2O)}*3H2O

{Y(N,N''-bis(benzylcarbamoylmethyl)diethylenetriamine-N,N',N''-triacetate)(H2O)}*3H2O

Conditions
ConditionsYield
With HCl; H2O In hydrogenchloride addn. of the Y salt in aq. HCl to a soln. of the triacetic acid in H2O, refluxing the mixt. until complete clearness of the soln., cooling to room temp.; crystn. on adjusting the pH to 4 and standing, filtration, washing (cold H2O), drying under vac., elem. anal.;74%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

p-chlorobenzoyl-di-(2-pyridyl)ketohydrazone
93418-36-1

p-chlorobenzoyl-di-(2-pyridyl)ketohydrazone

water
7732-18-5

water

[Y(NO3)2(ClC6H4CONHNC(C5H4N)2)2](1+)*NO3(1-)*2H2O=[Y(NO3)2(ClC6H4CONHNC(C5H4N)2)2]NO3*2H2O

[Y(NO3)2(ClC6H4CONHNC(C5H4N)2)2](1+)*NO3(1-)*2H2O=[Y(NO3)2(ClC6H4CONHNC(C5H4N)2)2]NO3*2H2O

Conditions
ConditionsYield
In methanol; water addn. dropwise of methanolic soln. of ClC6H4CONHNC(C5H4N)2 (2 equiv.) to water soln. of Y(NO3)3 (1 equiv.); stirring for 4 h; filtration, washing with MeOH; drying in vac. over anhyd. CaCl2; elem. anal.;74%
yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

trifluoperazine hydrochloride
1250-26-6

trifluoperazine hydrochloride

Y(3+)*2C21H24N3SF3*3NO3(1-) = [Y(C21H24N3SF3)2(NO3)2](NO3)

Y(3+)*2C21H24N3SF3*3NO3(1-) = [Y(C21H24N3SF3)2(NO3)2](NO3)

Conditions
ConditionsYield
In ethanol 15 min; pptn. washing (EtOH), drying (vac.); elem. anal.;73%
1,10-Phenanthroline
66-71-7

1,10-Phenanthroline

yttrium(III) nitrate
13494-98-9

yttrium(III) nitrate

benzenephosphono-3-sulphonic acid
126180-64-1

benzenephosphono-3-sulphonic acid

Y(1,10-phenanthroline)(3-phosphonobenzesulfonic acid(3-))(H2O)2*2H2O

Y(1,10-phenanthroline)(3-phosphonobenzesulfonic acid(3-))(H2O)2*2H2O

Conditions
ConditionsYield
In water High Pressure; mixt. of Y(NO3)3, 3-phosphonobenzesulfonic acid, 1,10-phenanthroline in H2O placed in autoclave, pH adjusted to 4.0 by NaOH, heated to 150°C for 4 d; collected; elem. anal.;73%

13494-98-9Relevant articles and documents

Auto-ignition based synthesis of Y2O3 for photo- and thermo-luminescent applications

Hari Krishna,Nagabhushana,Nagabhushana,Chakradhar,Sivaramakrishna,Shivakumara,Thomas, Tiju

, p. 129 - 137 (2014)

We present a simple route for synthesis of Y2O3 for both photoluminescent (PL) and thermoluminescent (TL) applications. We show that by simply switching the fuel from ethylene di-amine tetracetic acid (EDTA) to its disodium derivative (Na2-EDTA), we obtain a better photoluminescent material. On the other hand, use of EDTA aids in formation of Y2O3 which is a better thermoluminescent material. In both cases pure cubic nano-Y2O3 is obtained. For both the material systems, structural characterization, photoluminescence, thermoluminescence, and absorbance spectra are reported and analyzed. Use of EDTA results in nano Y2O3 with crystallite size ~10 nm. Crystallinity improves, and crystallite size is larger (~30 nm) when Na2-EDTA is used. TL response of Y2O3 nanophosphors prepared by both fuels is examined using UV radiation. Samples prepared with EDTA show well resolved glow curve at 140 C, while samples prepared with Na2-EDTA shows a glow curve at 155 C. Effect of UV exposure time on TL characteristics is investigated. The TL kinetic parameters are also calculated using glow curve shape method. Results indicate that the TL behavior of both the samples follow a second order kinetic model.

Spin-phonon coupling in multiferroic Y2CoMnO6

Silva, Rosivaldo X.,Castro Júnior, Manoel C.,Yá?ez-Vilar, Susana,Andújar, Manuel Sánchez,Mira, Jorge,Se?arís-Rodríguez, María Antonia,Paschoal, Carlos William A.

, p. 909 - 915 (2017)

Spin-phonon coupling in rare-earth based manganites with double perovskite structure plays a crucial role in the magnetoelectric properties of these ferromagnetic materials. Particularly, on Y2CoMnO6(YCMO), it is assumed that spin-phonon coupling is related to the induced ferroelectric polarization. This confers to YCMO a multiferroic characteristic. In this work, we probed the spin-phonon coupling in YCMO by temperature-dependent Raman spectroscopy measurements in ceramic samples obtained by the nitrate decomposition method. Raman scattering revealed some anomalies that could be attributed to a weak spin-phonon coupling, an unconventional behavior for rare-earth based manganites with double perovskite structure, in which the coupling does not fit with the quadratic magnetization.

Preparation and photoluminescence properties of SrY2O4:Yb3+, Er3+ powders

Yang, Jikai,Xiao, Siguo,Ding, Jianwen,Yang, Xiaoliang,Wang, Xiangfu

, p. 424 - 427 (2009)

Yb3+/Er3+ co-doped SrY2O4 powders are prepared by developing a nitric-decomposition method. Under 980 nm laser excitation, the green and red up-conversion emissions are observed at around 549 and 661 nm, which a

Soft-chemical synthesis and tunable luminescence of Tb3+, Tm3+/Dy3+-doped SrY2O4 phosphors for field emission displays

Zhang, Yang,Geng, Dongling,Shang, Mengmeng,Zhang, Xiao,Li, Xuejiao,Cheng, Ziyong,Lian, Hongzhou,Lin, Jun

, p. 4799 - 4808 (2013)

Tb3+, Tm3+, and Dy3+-activated SrY 2O4 phosphors have been prepared via Pechini-type sol-gel method. X-Ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), photoluminescence (PL) and lifetimes, as well as cathodoluminescence (CL) spectra were used to characterize the samples. Under low-voltage electron beam excitation, the Tb 3+-doped samples show a green luminescence, with a better CIE coordinates and higher emission intensity than the commercial product ZnO: Zn. Blue and yellow emissions could be obtained by doping with Tm3+ and Dy3+, respectively. A color-tunable emission in SrY2O 4 phosphors can be realized by co-doping with Tm3+ and Dy3+. White cathodoluminescence (CL) has been realized in a single-phase SrY2O4 host by co-doping with Tm3+ and Dy3+ for the first time with CIE (0.315, 0.333). Furthermore, the cathodoluminescence (CL) properties of SrY2O4: Tb 3+/Tm3+/Dy3+ phosphors including the dependence of CL intensity on accelerating voltage and filament current, the decay behaviour of CL intensity under electron bombardment, and the stability of CIE chromaticity coordinate have been investigated in detail. The as-prepared phosphors might be promising for use in field-emission display (FED) devices.

Sol-gel synthesis and photoluminescence of K2NiF4-type structure phosphors CaxSr1-xGdyY1-yAlO 4:zEu3+ with hybrid precursors

Wu, Junjie,Yan, Bing

, p. 214 - 218 (2007)

CaxSr1-xGdyY1-yAlO 4:zEu3+ (x = 0.2-1.0, y = 0-1.0, z = 0.01-0.07) was synthesized by a hybrid precursor assembly sol-gel technology. We got sol solutions by stoichiometric rare earth nitrate, Sr(NO3)2, Ca(NO3)2, Al(NO3)3, at the same time investigated the relationship between the sol formed and experiment variable including Ph, temperature, concentration, and so on. Through drying and calcining precursors, we got luminescent materials powder. The particle size of luminescent materials is about 40 nm characterized by XRD and having thick three-dimension grains as SEM shown. Not only co-doping Ca2+ and Sr2+ but also changing the ratio of Gd3+ and Y3+ cannot change the crystalline structure in CaxSr1-xGdyY1-yAlO 4, it also formed the crystalline structure as that of pure-phase CaGdAlO4. All these photoluminescence materials show good emission spectra and their luminescent intensity depend on the concentrating of Eu3+: in all these luminescent materials, there exist emission come from Eu3+ activator' transitions of 5D0-7FJ (J = 0-3) and their emission intensity increase as adding to the concentration of Eu3+.

Controllable preparation and fluorescence properties of Y3+ and Eu3+ co-doped mesoporous silica

Zhang, Chao,Guang, Shanyi,Xu, Hongyao

, p. 1409 - 1415 (2010)

The controllable preparation and forming mechanism of rare-earth Y3+ and Eu3+ chemically co-doped fluorescent mesoporous silica were studied in detail. Their structures, morphologies, chemical compositions and emission properties were characterized and evaluated by small angle X-ray scattering, nitrogen adsorption/desorption measurements, high resolution transmission electron microscopy, inductive coupled plasma-atomic emission, X-ray photoelectron spectra and fluorescent spectroscopy. The results show that chemical composition of the resultant mesoporous materials were significantly affected by solution acidity condition, and can be effectively adjusted by varying the feed ratio of raw materials at a suitable solution acidity condition. These materials with a well-ordered two-dimensional hexagonal mesoporous structure and high specific surface area exhibit significantly broadened emission band from 526 to 682 nm and the fluorescent emission mechanism and influence of materials structure on optical properties were investigated.

Morphology formation mechanism and fluorescence properties of nano-phosphor YPO4:Sm3+ excited by near-ultraviolet light

Wu, Jinxiu,Li, Mei,Jia, Huiling,Liu, Zhaogang,Jia, Hengjun,Wang, Zhongzhi

, (2020)

A series of YPO4:Sm3+ phosphors were prepared by the hydrothermal method. The composition, structure, morphology and luminescence properties of the samples were characterized and analyzed by means of X-ray diffractometer (XRD), scanning electron microscopy (SEM and EDS) and fluorescence spectrophotometer (FL). The morphology formation mechanism and fluorescence temperature characteristic of nano-phosphor YPO4:Sm3+ were mainly studied. The results show that the products are single tetragonal phosphor yttrium ore structure with nanosphere morphology. Morphology formation mechanism of YPO4:Sm3+ is nucleation - dissolution - recrystallization - crystal growth. The strongest excitation spectrum appears at 404 nm, which belongs to the 6H5/2 → 4F7/2 transition of Sm3+. The strongest emission spectrum appears at 603 nm, which belongs to the 4G5/2 → 6H7/2 transition of Sm3+. The chromaticity coordinates show that the phosphors are red. The optimum doping concentration of activator Sm3+ in YPO4 matrix is 2%. When the doping concentration of Sm3+ is higher than 2%, concentration quenching occurs. The mechanism of concentration quenching is electric dipole - electric dipole interaction. The critical distance for energy transfer between Sm3+ is 1.899 nm. Nano-phosphor YPO4:2% Sm3+ has good thermal stability, and its fluorescence lifetime is 217.99 μs. The activation energy of thermal quenching is 0.2566 eV.

Color-tunable luminescence of Y4Si2N 2O7:Ce3+, Tb3+, Dy3+ Phosphors prepared by the soft-chemical ammonolysis method

Geng, Dongling,Li, Kai,Lian, Hongzhou,Shang, Mengmeng,Zhang, Yang,Wu, Zhijian,Lin, Jun

, p. 1955 - 1964 (2014)

Ce3+-, Tb3+-, and Dy3+-activated Y 4Si2N2O7 phosphors have been prepared by the Pechini-type sol-gel method followed by ammonolysis of the precursors. The phase purity, morphology, crystallization condition, chemical composition, and thermal stability of the products have been studied carefully by X-ray diffraction (XRD), energy-dispersive X-ray (EDX), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), fourier-transform infrared (FTIR), and thermogravimetry analysis (TGA) techniques. The photoluminescence (PL) and cathodoluminescence (CL) properties of Ce3+-, Tb3+-, and Dy3+-doped Y 4Si2N2O7 phosphors were also investigated. The electronic structure of Y4Si2N 2O7 has been investigated by density-functional theory methods. The calculations revealed that the nitrogen atom contributes more excited electrons than the O atom. The band gap has been calculated through the reflection spectrum of the Y4Si2N2O7 host. For Ce3+/Tb3+/Dy3+ singly doped Y 4Si2N2O7 products, the phosphors give the typical emissions of the activators. The energy transfers from Ce 3+ to Tb3+ and Dy3+ ions have been found and demonstrated through the PL spectra and luminescence decay times. The emission color of Y4Si2N2O7:Ce3+, Tb3+ and Y4Si2N2O 7:Ce3+, Dy3+ samples can be tuned by energy transfer processes. Additionally, the temperature-dependent PL properties and the degradation property of CL under continuous electron bombardment of the as-synthesized phosphors prove that the Y4Si2N 2O7 host has good stability. Therefore, the Y 4Si2N2O7:Ce3+, Tb 3+, Dy3+ phosphors could serve as a promising candidate for UV W-LEDs and FEDs. Copyright

Photoluminescent properties of Eu3+, Tb3+ activated M3Ln(PO4)3 (M = Sr, Ca; Ln = Y, La, Gd) phosphors derived from hybrid precursors

Xiao, Xiuzhen,Xu, Shuai,Yan, Bing

, p. 255 - 259 (2007)

Ternary orthophosphates M3Ln(PO4)3 doped with Eu3+, Tb3+ were prepared via an in situ chemical co-precipitation technology, and the assembly process of hybrid precursors were as follows: using rare-earth coordination polymers with salicylic acid as precursors and composing with the polyvinyl alcohol (PVA) as dispersing media. Their microstructure and micromorphology have been analyzed by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The emission spectra exhibited strong luminescence of 5D0 → 7F2 at 609 nm, indicating that the Eu3+ located in a noncentrosymmetric position in Eu-doped M3Ln (PO4)3 matrix. Besides this, the values of red to orange emission intensities for Eu3+ in Sr3Gd (PO4)3 strongly depend on the doping concentration.

New rare earth langbeinite phosphosilicates KBaREEZrP2SiO12 (REE: La, Nd, Sm, Eu, Gd, Dy) for lanthanide comprising nuclear waste storage

Kumar, Sathasivam Pratheep,Gopal, Buvaneswari

, p. 422 - 429 (2016)

In contrast to the existing cubic langbeinite phosphates and sulphates, orthorhombic langbeinite phosphosilicates of the chemical formula KBaYMP2SiO12 (M: Zr, Sn), KBaREEZrP2SiO12 (REE: La, Nd, Sm, Eu, Gd, Dy) and the wasteform KBaY0.6La0.1Nd0.1Sm0.1Eu0.1ZrP2SiO12 have been synthesized by solution method. Powder X-ray diffraction analysis affirmed that the compounds were phase pure and crystallized in an orthorhombic structure with P212121 space group. Spectral analysis of the wasteform revealed the phase stability, thermal stability and chemical durability of the langbeinite structure. Chemical durability of the powder wasteform has been studied by a dynamic Soxhlet test. Elemental analysis of the leachates showed that the normalized mass losses of barium, zirconium and silicon were in the order of 10-3-10-2 g/m2, 10-5-10-4 g/m2 and 10-2-10-1 g/m2 respectively. Normalized mass losses of lanthanides, potassium and phosphorous were found to be below the instrumental detection limits.

Microstructure evolution in two-step-sintering process toward transparent Ce:(Y,Gd)3(Ga,Al)5O12 scintillation ceramics

Beitlerová, Alena,Chen, Haohong,Chen, Xiaopu,Feng, Yagang,Kou, Huamin,Ku?erková, Romana,Li, Jiang,Li, Xiaoying,Liu, Xin,Mihóková, Eva,Nikl, Martin,Xie, Tengfei

, (2020)

Scintillators are broadly utilized in high energy particle detection and medical imaging. Ce:(Y,Gd)3(Ga,Al)5O12 ceramics has recently demonstrated excellent scintillation properties and great commercialization potential. T

Highly uniform α-NaYF4:Yb/Er hollow microspheres and their application as drug carrier

Han, Yunhua,Gai, Shili,Ma, Ping'An,Wang, Liuzhen,Zhang, Milin,Huang, Shaohua,Yang, Piaoping

, p. 9184 - 9191 (2013)

Highly uniform α-NaYF4:Yb/Er hollow microspheres have been successfully prepared via a simple two-step route. First, the core-shell structured MF@Y(OH)CO3:Yb/Er precursor was fabricated by a urea-based homogeneous precipitation method using colloidal melamine formaldehyde (MF) microspheres as template. Then the Y(OH)CO3:Yb/Er precursor was transformed into hollow NaYF4:Yb/Er (α and β mixed phase) by a subsequent solvothermal method, and MF microspheres were dissolved in the solvent simultaneously. The mixed phase of NaYF4:Yb/Er was transferred into pure α-NaYF4:Yb/Er by calcination. The as-prepared hollow microspheres were well characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectrum (EDS), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and upconversion (UC) luminescence spectroscopy. It is found that the template can be removed without additional calcination or etching process. α-NaYF4:Yb/Er hollow microspheres exhibit bright upconversion (UC) luminescence under 980 nm laser diode (LD) excitation. Furthermore, the hollow microspheres show sustained and pH-dependent doxorubicin hydrochloride (DOX) release properties; in particular, the emission intensity increases with the release amount of drug, making the release process able to be tracked or monitored by the change of the emission intensity, which demonstrates the high potential of this kind of hollow fluorescent material in drug delivery fields.

Matrix-inducing synthesis and luminescence of microcrystalline red phosphors YVO4:Pb2+,Eu3+ derived from the in situ coprecipitation of hybrid precursors

Su, Xue-Qing,Yan, Bing

, p. 59 - 63 (2006)

Using rare-earth coordination polymers with o-hydroxylbenzoate as a precursor, composing with poly vinyl alcohol as a dispersing medium, a novel red-emitting material of YVO4:xPb2+, yEu3+ (x = 0, 1.0, 1.2, 1.5, 1.8, 2.0, and 5.0 mol %; y = 5 mol %) was synthesized by an in situ coprecipitation process. Its microstructure and micromorphology have been analyzed by x-ray powder diffraction and scanning electronic microscopy, which indicates that there exist some novel cobblestone-like microcrystalline particles. With Pb2+ as a sensitizer, these materials all exhibit strong red emission near 618 nm due to the 5D0 → 7F2 transition of Eu3+ ions. At x = 1.5, YVO4:Pb2+,Eu3+ shows the strongest emission intensity, which indicates an efficient energy transfer from Pb2+ to Eu3+. Pleiades Publishing, Inc., 2006.

Facile hydrothermal synthesis and luminescent properties of Eu-doped CaF2-YF3 alkaline-earth ternary fluoride microspheres

Zhang, Yang,Zhao, Qi,Shao, Baiqi,Lue, Wei,Dong, Xiangting,You, Hongpeng

, p. 35750 - 35756 (2014)

Large-scale CaF2-YF3 alkaline-earth ternary fluoride microspheres with diameters of about 2.5 μm were prepared by a facile hydrothermal method in the presence of disodium ethylenediamine tetraacetate (Na2H2L). The influences of several experimental parameters, such as reaction time, amount of Na2H2L, pH values, and fluoride source on the final products were investigated. The formation mechanism of the as-obtained microspheres was proposed on the basis of all these studies. It is also found that the addition amount of the Y 3+ ions had an effect on the morphology of CaF2-YF 3. The luminescence spectrum of Eu3+-doped CaF 2-YF3 microspheres showed the strong characteristic dominant emission of the Eu3+ ions at 590 nm, indicating that the Eu3+ ions occupy a site of inversion symmetry in the CaF 2-YF3 matrix.

A new sol-gel route to synthesize YPO4:Tb as a green-emitting phosphor for the plasma display panels

Di, Weihua,Wang, Xiaojun,Chen, Baojiu,Zhao, Xiaoxia

, p. 566 - 567 (2005)

This work adopts a novel and low-cost sol-gel route to synthesize Tb 3+-doped YPO4 as a green-emitting phosphor for the plasma display panel (PDP). The phosphor obtained by this route shows improved luminescence efficiency in vacuum ultraviolet (VUV) excitation, compared with that obtained by a solid-state reaction. Copyright

Synthesis of nanocrystalline yttria doped ceria powder by urea-formaldehyde polymer gel auto-combustion process

Biswas,Prabhakaran,Gokhale,Sharma

, p. 609 - 617 (2007)

Nanocrystalline yttria doped ceria powder has been prepared by auto-combustion of a transparent gel formed by heating an aqueous acidic solution containing methylol urea, urea, cerium(III) nitrate and yttrium(III) nitrate. The TGA and DSC studies showed the combustion reaction of the gel initiated at 225 °C and completed within a short period of time. XRD spectrum of the combustion product reveals the formation of phase pure cubic yttria doped ceria during the combustion process. Loose agglomerate of yttria doped ceria particle obtained by the combustion reaction could be easily deagglomerated by planetary ball milling and the powder obtained contains particles in the size range of 0.05-3.3 μm with D50 value of 0.13 μm. The powder particles are aggregate of nanocrystallites with a wide size range of 14-105 nm. Pellets prepared by pressing the yttria doped ceria powder sintered to 95.2% TD at 1400 °C.

Emission Enhancement and Color Tuning for GdVO4:Ln3+ (Ln = Dy, Eu) by Surface Modification at Single Wavelength Excitation

Song, Yan,Shao, Baiqi,Feng, Yang,Lü, Wei,Huo, Jiansheng,Zhao, Shuang,Liu, Man,Liu, Guixia,You, Hongpeng

, p. 282 - 291 (2017)

The surface modification can realize systematically the emission enhancement of GdVO4:Ln3+ (Ln = Dy, Eu) microstructures and multicolor emission at single component. The structure, morphology, composition, and the surface ligands modification of as-prepared samples were studied in detail. It is found that the surface-modified ligands can act as sensitizer to improve the emission of the Eu3+ and Dy3+ ions via the energy transfer besides the VO43--Eu3+/Dy3+ process. More importantly, under a single wavelength excitation, the emission color can be effectively tuned by manipulating the doping ratio of the Eu3+ ions in the internal crystal lattice and the Tb3+ ions in the external surface ligands, simultaneously. And further, multicolor emissions are obtained under single wavelength excitation due to the high overlapping between the VO43- absorption and the π-π? electron transition of the ligands. These findings may open new avenues to design and develop new highly efficient luminescent materials.

Europium-doped NaYF4 nanoparticles cause the necrosis of primary mouse bone marrow stromal cells through lysosome damage

Ge, Kun,Sun, Wentong,Zhang, Shaohan,Wang, Shuxian,Jia, Guang,Zhang, Cuimiao,Zhang, Jinchao

, p. 21725 - 21734 (2016)

Applications of europium-doped NaYF4 (NaYF4:Eu3+) nanoparticles in biomedical fields will inevitably increase their exposure to humans, therefore, the assessment of toxicities must be taken into consideration. It was reported that NaYF4:Eu3+ nanoparticles could accumulate in the bone. However, the potential effect of NaYF4:Eu3+ nanoparticles on bone marrow stromal cells (BMSCs) has not been reported. In this study, NaYF4:Eu3+ particles with diameters of 50 and 200 nm (NY50 and NY200) were prepared and characterized by scanning electron microscopy, transmission electron microscopy, powder X-ray diffraction, photoluminescence excitation and emission spectra, and dynamic light scattering. The cytotoxicity of NaYF4:Eu3+ particles on BMSCs and the associated mechanisms were further studied. The results indicated that NaYF4:Eu3+ particles could be uptaken into BMSCs and primarily localized in the lysosome. NaYF4:Eu3+ particles effectively inhibited the viability of BMSCs in a size-dependent manner at 24 and 48 h. After cells were treated with 20 μg mL-1 of NY50 and NY200 for 24 h, NaYF4:Eu3+ particles could trigger cell necrosis in a size-dependent manner. The percentage of necrotic BMSCs (PI+/Annexin V-) increased to 15.93 and 14.73%. Necrosis was further verified by increased lactate dehydrogenase leakage. Meanwhile, both NY50 and NY200 induced an increased cell population in the S and G2/M phases. The following mechanism is involved in NaYF4:Eu3+ particle-induced BMSCs necrosis: the NaYF4:Eu3+ particles lead to lysosomal rupture by lysosomal swelling, permeabilization of lysosomal membranes, and increased cathepsins B and D. In addition, NaYF4:Eu3+ particle-induced BMSCs necrosis is also directly caused by the overproduction of ROS through injury to the mitochondria. This study provides novel evidence to elucidate the toxicity mechanisms for bone metabolism and may be beneficial to more rational applications of these nanomaterials in the future.

Preparation and characteristics of core-shell structure Y 3Al5O12:Yb3+@SiO2 nanoparticles

Sun, Yan-Hui,Yang, Zhong-Min,Xie, Cheng-Ning,Jiang, Zhong-Hong

, p. 1 - 9 (2012)

The club-shape (Y0.98Yb0.02)3Al 5O12 nanoparticles (YAG:Yb3+), which were synthesized by the co-precipitation method, had been successfully coated with silica from hydrolysis and condensati

Site-Bi3+ and Eu3+ dual emissions in color-tunable Ca2Y8(SiO4)6O2:Bi3+, Eu3+ phosphors prepared via sol-gel synthesis for potentially ratiometric temperature sensing

Li, Kai,Van Deun, Rik

, p. 86 - 95 (2019)

A series of Ca2Y8(SiO4)6O2 (CYSO):Bi3+, Eu3+ phosphors were prepared via a Pechini-type sol-gel reaction method. The refinement results for CYSO:Bi3+, Eu3+ phosphors implied that they had a pure phase. The blue-green emission ascribed to Bi3+ 3P1→1S0 transition was generated upon UV excitation in Bi3+ singly-doped CYSO samples. Spectral analysis indicated that two main emission bands around 414 and 494 nm correspond to two kinds of Bi3+ occupying the crystal lattices of 4f and 6 h available for Y3+ in CYSO, denoted as Bi3+(2) and Bi3+(1), respectively. A broad spectral overlap between Bi3+ emission and Eu3+ excitation spectra implied the existence of energy transfer from Bi3+ to Eu3+ ions in CYSO:Bi3+,Eu3+, which resulted in the tunable emission color from blue-green to red. The energy transfer mechanism from Bi3+ to Eu3+ ions was determined to be a dipole-quadrupole interaction. Moreover, the quite different luminescence thermal quenching behaviors between Bi3+(2) and Eu3+ showed good temperature sensing properties with a temperature range of 298–523 K by analyzing the temperature sensitivity of the fluorescent intensity ratio [Bi3+(2)/Eu3+(612)]. The maximum absolute and relative sensitivities reached as high as 0.07174 K-1 (523 K) and 0.958% K?1 (423 K), which can be compared to the highest values of 0.015 K-1 and 1.1%K?1 in reported optical thermometric materials before, respectively, based on the thermally coupled level (TCLs) of Er3+. Meanwhile, the luminescence thermal quenching mechanism in this system was investigated in detail. Results inspire that a feasible method based on site-Bi3+ and Eu3+ emissions is potential as one of candidate strategies for developing novel ratiometric optical thermometry materials.

Host Differential Sensitization toward Color/Lifetime-Tuned Lanthanide Coordination Polymers for Optical Multiplexing

Liang, Hongbin,Ma, Fengkai,Ma, Li,Ou, Yiyi,Su, Fang,Zheng, Lirong,Zhou, Rongfu,Zhou, Weijie,Zhu, Zece

, p. 23810 - 23816 (2020)

Optical multiplexing based on luminescent materials with tunable color/lifetime has potential applications in information storage and security. However, the available tunable luminescent materials reported so far still suffer from several drawbacks of low efficiency or poor stability, thus restraining their further applications. Herein, we demonstrate a strategy to develop efficient and stable lanthanide coordination polymers (LCPs) with tunable luminescence as a new option for optical multiplexing. Their multicolor emission from green to red and naked-eye-sensitive green emission with tunable lifetime (from ca. 300 to ca. 600 μs) can be controlled by host differential sensitization and energy transfer between lanthanide ions. The quantum efficiencies of developed samples range from around 20 % to 46 % and the luminescence intensity/lifetime appear quite stable in polar solvents up to ten weeks. Furthermore, with the aid of inkjet printing and concepts of luminescence lifetime imaging and time-gated imaging, we illustrate their promising applications of information storage and security in spatial and temporal domains.

Mutual solubility between hexane and tri-n-butyl phosphate solvates of lanthanide(III) and thorium(IV) nitrates at various temperatures

Keskinov,Lishchuk,Pyartman

, p. 1144 - 1146 (2007)

The phase diagrams of binary liquid systems consisting of hexane and a tri-n-butyl phosphate (TBP) solvate of an Ln(III) (Ln = Nd, Gd, Y, Yb, Lu) or Th(IV) nitrate at various temperatures are considered. The diagrams show a field of homogeneous solutions and a two-phase field in which phase I is hexane-rich and phase II is rich in [Ln(NO3)3(TBP)3] or [Th(NO3)4(TBP)2]. The miscibility gap in the binary systems narrows with increasing temperature.

Self-assembled three-dimensional NaY(WO4)2:Ln 3+ architectures: Hydrothermal synthesis, growth mechanism and luminescence properties

Huang, Shaohua,Wang, Dong,Wang, Yan,Wang, Liuzhen,Zhang, Xiao,Yang, Piaoping

, p. 140 - 147 (2012)

Novel three-dimensional (3D) flower-like NaY(WO4) 2:Ln3+ (Ln = Eu, Yb/Er, Yb/Tm and Yb/Ho) microstructures with uniform shape and dimension have been prepared using Y(OH)CO3 nanospheres as sacrificial template through a hydrothermal process and followed by a subsequent heat treatment process. The whole process was carried out in aqueous condition without using any organic solvents, surfactant, or catalyst. The phase, morphology, size, and photoluminescence (PL) properties were well characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM), photoluminescence (PL) spectra, and kinetic decays, respectively. The results reveal that the as-prepared precursor of NaY(WO 4)2:Eu3+ exhibits interesting white light emission under UV excitation. After annealing, the as-obtained 3D flower-like NaY(WO4)2:Eu3+ microstructures show exclusively red (Eu3+, 5D0 → 7F 2) luminescence. Furthermore, the up-conversion (UC) luminescent properties and the emission mechanisms of NaY(WO4) 2:Yb3+/Ln3+ (Ln = Er, Tm, Ho) microstructures have been systematically studied, which show respective green (Er3+, 4S3/2, 2H11/2 → 4I15/2), blue (Tm3+, 1G4 → 3H6) and yellow-green (Ho3+, 5S2 → 5I8) luminescence under 980 nm NIR excitation.

Enhancing upconversion luminescence of highly doped lanthanide nanoparticles through phase transition delay

Xu, Dekang,Xie, Feiyan,Yao, Lu,Li, Yongjin,Lin, Hao,Li, Anming,Yang, Shenghong,Zhong, Shengliang,Zhang, Yueli

, (2020)

Doping of rare earth (RE) ions in a low-phonon-energy host matrix is an effective strategy to enhance the upconversion luminescence (UCL) of lanthanide-doped nanoparticles. However, doping of optically inactive RE ions at high concentrations can cause an undesirable phase transition of the host matrix, with concomitant decrease in luminescence. Herein, we present a phase-transition-delay protocol to effectively preserve the pure orthorhombic phase of a KLu2F7:Yb3+,Er3+ system, even at high RE dopant concentrations. The proposed concept can be realized by incorporating a set of optically inactive RE dopants, i.e., Y3+ or Gd3+, with different ionic radii to replace the Lu3+ ions in the host matrix to overcome the energy barrier of the phase transition. The nanoparticles were synthesized in a high-boiling solvent or at a high reaction temperature. We observed maximal UCL of Er3+ at different Y3+ or Gd3+ dopant concentrations; the optimal Y3+ or Gd3+ concentration at which maximal UCL is observed is 10 mol% for samples prepared by a water-based hydrothermal route, while it is 30 mol% for samples prepared by an oleic acid-based hydrothermal route. Further, this optimal concentration could be increased to as much as 50 mol% by adopting a high reaction temperature. The high doping of Y3+ or Gd3+ can efficiently lead to enhanced upconversion performance of the final materials (as much as 32-fold and 9-fold enhancements in the upconversion intensity and quantum yield, respectively, are achieved). The UCL enhancement is caused by the break-down of the symmetry of lanthanide sites in the crystal lattice induced by Y3+ or Gd3+, which enhances the energy transfer probabilities between Yb3+ and Er3+. Our findings highlight a convenient route to simultaneously tune the phase transition of the host and upconversion output, and this strategy can be applied to other upconversion host materials.

The sorption properties of carbon nanotubes modified with tetraphenylmethylenediphosphine dioxide in nitric acid media

Turanov,Karandashev,Evseeva,Kolesnikov,Borisenko

, p. 2223 - 2226 (2008)

The distribution of microamounts of La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y nitrates between aqueous solutions of HNO3 and multiwalled carbon nanotubes noncovalently modified with tetraphenylmethylenediphosphine dioxide (L) wa

Multiple ratiometric nanothermometry operating with Stark thermally and non-thermally-coupled levels in upconverting Y2?xMoO6:xEr3+ nanoparticles

Zheng, Teng,Qiu, Xujun,Zhou, Luhui,Runowski, Marcin,Lis, Stefan,Du, Peng,Luo, Laihui

, (2021/02/09)

Contactless optical nanothermometers of high thermal sensitivity are in great demand in various fields. In this work, we applied a facile sol-gel method to synthesize a series of Y2-xMoO6:xEr3+ upconverting nanoparticles (UCNPs), capable of acting as luminescence nanothermometers. Upon 980 nm laser light irradiation, with increasing Er3+ content, the prepared samples show a color-tunable upconversion emission, from green to yellow. Comparison of the thermometric properties determined by the Stark thermally coupled levels (TCLs) with those determined by the Stark non-thermally coupled levels (non-TCLs) showed that the superior thermal sensitivity (maximal Sr = 2.063%K?1 at 303 K) is achieved for the non-TCLs 4F9/2(1)/4S3/2(1). Moreover, a higher content of Er3+ in UCNPs (Y1.88MoO6:0.12Er3+ UCNPs) has been found to lead to a significant increase of Sr (Sr MAX = 2.460%K?1 at 303 K). Y2-xMoO6:xEr3+ UCNPs are promising materials for contactless nanothermometers of high sensitivity.

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