CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Cu supported on thin carbon layer-coated porous SiO2 for efficient ethanol dehydrogenation
Wang, QN; Shi, L; Li, W; Li, WC; Si, R; Schuth, F; Lu, AH
2018
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
Volume8Issue:2Pages:472-479
Subtype期刊论文
AbstractWe report a designed Cu/C/SiO2 composite catalyst, which shows a high acetaldehyde selectivity (up to similar to 98%) and good stability for a 60 h test at 260 degrees C in ethanol dehydrogenation. Various characterization techniques demonstrate that the carbon covers the Si-OH groups on silica and promotes the reduction of Cu+ to Cu-0. This reduces the concentration of active sites for secondary reactions of CH3CHO, which leads to a high initial selectivity (similar to 93%) as compared to that of Cu/SiO2 (similar to 76%). Moreover, the chemical interaction between Cu and SiO2 of the C/SiO2 support, verified by X-ray photoelectron spectroscopy, enhances the interaction between the metal and the support and thus contributes to prevention of the agglomeration of Cu particles, which is the reason for the good catalytic stability of Cu/C/SiO2. Thus, this study is an example of how careful design of the catalyst can strongly improve the catalytic performance.
KeywordCopper-based Catalysts Cu/sio2 Catalysts Dimethyl Oxalate Highly Efficient Ethylene-glycol Acetic-acid Oxide Hydrogenation Conversion Oxidation
DOI10.1039/c7cy02057k
Indexed BySCI
Language英语
WOS IDWOS:000423483200007
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28953
Collection中科院上海应用物理研究所2011-2018年
Affiliation1.Wang, QN
2.Shi, L
3.Li, W
4.Li, WC
5.Si, R
6.Schuth, F
7.Lu, AH
Recommended Citation
GB/T 7714
Wang, QN,Shi, L,Li, W,et al. Cu supported on thin carbon layer-coated porous SiO2 for efficient ethanol dehydrogenation[J]. CATALYSIS SCIENCE & TECHNOLOGY,2018,8(2):472-479.
APA Wang, QN.,Shi, L.,Li, W.,Li, WC.,Si, R.,...&Lu, AH.(2018).Cu supported on thin carbon layer-coated porous SiO2 for efficient ethanol dehydrogenation.CATALYSIS SCIENCE & TECHNOLOGY,8(2),472-479.
MLA Wang, QN,et al."Cu supported on thin carbon layer-coated porous SiO2 for efficient ethanol dehydrogenation".CATALYSIS SCIENCE & TECHNOLOGY 8.2(2018):472-479.
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