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Journal of Materials Chemistry A
Page 9 of 11
Journal Name
ARTICLE
1
Y. Yuan, Applied Catalysis A: General., 2015, 505,
Table 1 Catalytic performance of different catalysts synthesized by various approaches
DOI: 10.1039/C8TA07371F
3
44–353.
DMO
Conversion
%
MG
Selectivity
%
2
3
. Y. Song, J. Zhang, J. Lv, Y. Zhao, X. Ma, Ind. Eng.
Type of Catalyst
Synthesis method
Stability test
Ref
Chem. Res., 2015, 54 , 9699–9707.
. Y. Zhao, Y. Zhang, Y. Wang, J. Zhang, Y. Xu, S. Wang,
X. Ma, Applied Catalysis A, General., 2017, 539, 59–
Co-Impregnation
method
Ag-Ni/SBA-15
Ag-CuOx
82.9
>96
99.4
26.7
>96
96.3
96
140 h
1
6
9.
Galvanic deposition
Not tested
Not tested
1100 h
4
4. Y. Chen, L. Han, J. Zhu, P. Chen, S. Fan, G. Zhao, Y. Liu,
Y. Lu, Catalysis Comm ., 2017,96, 58–62.
5. Z. Chen, J. Zhang, M. Abbas, Y.Y. Xue, J. Q. Sun, K.F.
Liu, J. Chen, Ind. Eng. Chem. Res. 2017,56 (33), 9285-
9292.
. C. Wen, Y. Cui, W. Dai, S. Xie and K. Fan, Chem.
Commun., 2013,49, 5195.
Impregnation
method
Ru-NH
2
-SiO
2
87.3
98.6
>97
12
13
32
Ag/Cu/SiO
2
Galvanic deposition
6
Impregnation
method
Ag/CNTs
200 h
7
. Y. Zhao, S. Li, Y. Wang, B. Shan, J. Zhang, S. Wang, X.
Impregnation
method
Ma, Chemical Engineering Journal., 2017, 313, 759–
Ag-B
2
O
3
/SiO
2
98.9
>90
100
97.2
94
260 h
120 h
300 h
38
39
7
68.
8
. J. Ding, Y. Liu, J. Zhang, M. Dong, Y. Wang, W. He, X.
Han, K. Liu, Z. Jiang, J. Chen, Molecular Catalysis.,
2017,438, 93–102.
Cu/SiO
2
Sonochemical
Sonochemical
Cu/RGO (25
wt%)
This
work
98.8
9
1
. J. Zheng, H. Lin, X. Zheng, X. Duan, Y. Yuan, Catalysis
Comm., 2013,40 , 129–133.
0. M.M. Li, L. Ye, J. Zheng, H. Fang, A. Kroner, Y. Yuan,
S. E. Tsang, Chem. Commun., 2016,52, 2569.
4
. Conclusions
11. J. Zheng, H. Lin, X. Zheng, X. Duan, Y. Yuan, J. Catal.,
013,297, 110.
2
In summary, eco-friendly and surfactant-free in-situ
1
2. H. Fan, J. Tan, Y. Zhu, H. Zheng, Y. Li, Journal of
Molecular Catalysis A: Chemical., 2016,425, 68–75.
3. Y. Liu, J. Ding, J. Yang, J. Bi, K. Liu, J. Chen, Catalysis
Comm., 98 , 2017,43–46.
sonochemcial reaction was designed to synthesize highly
dispersed and morphology controlled Cu nanoparticles-
wrapped on RGO NSs catalysts. The prepared catalysts were
employed for the first time in DMO hydrogenation reaction
without the pre-calcination step and displayed remarkable
catalytic activity. The catalyst synthesized in presence of
ultrasound and ammonia within 25 wt% of Cu loading showed
high MG selectivity of 98.8% at 210ºC, while, the highest
ETOH selectivity value of 94% is produced by the catalyst
synthesized within 45 wt% of Cu loading at 240 ºC. Moreover,
both of catalysts exhibited superior stability for at least 300 h,
which reflecting their promising potential industrial application.
This could be attributed to the outstanding dispersion of Cu
caused by the applied of the high intensity ultrasound, the
synergistic and proper ratio of Cu /(Cu +Cu ) and the
exceptional properties of RGO as catalysts support. The
developed highly efficient and convenient sonochemical
approach holds great promise for the clean synthesis of various
active heterogeneous catalysts; meanwhile, the Cu/RGO
catalyst could be used in other various hydrogenation reactions.
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+
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Conflicts of interest
2
The authors have no conflicts of interest
22. R.V. Kumar, R. Elgamiel, Y. Diamant, A. Gedanken, J.
Norwig, Langmuir 2001, 17, 1406-1410.
2
3. S. Mosleh, M.R. Rahimi, M. Ghaedi, K. Dashtian, S.
Hajati, Ultrasonics-Sonochemistry 40 (2018) 601–610
Acknowledgements
This work was supported by NSFC (Natural Science
24. Y. Wang, H. Li, J. Zhang, X. Yan, Z. Chen,
Phys.Chem.Chem.Phys. 18(2016) 615.
Foundation of China project (21673272) and
(21373254) and
the Postdoctoral fellowship project of President's International
Fellowship Initiative (PIFI) by Chinese Academy of Sciences,
China.
25. S. Zhu, J. Guo , J. Dong, Z. Cui, T. Lu, C. Zhu, D.
Zhang, J. Ma, Ultrasonics-Sonochemistry, 20, 2013,
8
72–880.
2
2
6. S. Gangulya, P. Das, M. Bose, Das, T. S. Mondal, A.
Das, N.C. Das, Ultrasonics–Sonochemistry, 39, 2017,
5
77–588.
Notes and references
7. G. Goncalves, P. Marques, C. M. Granadeiro, H.
Nogueira, M. K. Singh, J. Gracio, Chem. Mater, 21,
2
009, 4796–4802.
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