14536-19-7Relevant articles and documents
Effect of organic acids precursors on the morphology and size of ZrO2 nanoparticles for photocatalytic degradation of Orange G dye from aqueous solutions
Ibrahim, Islam M.,Moustafa, Moustafa E.,Abdelhamid, Mohamed R.
, p. 741 - 748 (2016)
Zirconium oxide nanoparticles were prepared by precipitation from different organic acid precursors (oxalic, tartaric, citric, succinic, malic, maleic and malonic) and ignition at 750 °C. The as-prepared samples were characterized by XRD, FT-IR, UV–Vis an
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Gable
, p. 1276 (1931)
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On the activity of ZrO2 prepared by different methods
Kaddouri,Mazzocchia,Tempesti,Anouchinsky
, p. 97 - 109 (1998)
Zirconia samples with different structures (monoclinic, tetragonal or a mixture of the two) was prepared by different methodologies, including a novel procedure involving the precipitation of an oxalate precursor and the formation of pure tetragonal ZrO2. The different precursors obtained by varying the preparative procedure (ex oxychloride, ex oxalate, and ex gel) were studied by means of differential thermal analysis and thermogravimetric analysis under air and under N2, while the final oxides were characterized by BET, porosimetry and XRD analysis. The surface acid-base properties of the different oxides were assessed via the catalytic decomposition isopropanol. A prevalence of acid sites found for the ex-oxalate ZrO2 seems to justify the different mechanism of chain growth observed in the carbonylation of methanol with CO/H2 mixtures in the presence of Rh.
Nanocrystalline oxalate/carbonate precursors of Ce and Zr and their decompositions to CeO2 and ZrO2 nanoparticles
Vaidya, Sonalika,Ahmad, Tokeer,Agarwal, Suman,Ganguli, Ashok K.
, p. 863 - 869 (2008/10/09)
The oxalate and carbonate precursors of cerium and zirconium have been prepared using reverse micelles as nanoreactors. Cerium oxalate precursor on thermal decomposition leads to a mixture of nanorods and nanoparticles of cerium oxide (nanoparticles of 10 nm and nanorods with 7 nm diameter and 30 nm length). Cerium oxide with crystallite size of 10 nm was obtained from cerium carbonate precursor. Monodispersed nanoparticles of zirconia with an average size of 3-5 and 12 nm were obtained from the oxalate and carbonate precursor, respectively. Detailed dielectric properties of sintered discs of nanocrystalline ceria and zirconia have been studied with variation of frequency and temperature.