Cu supported on thin carbon layer-coated porous SiO2 for efficient ethanol dehydrogenation
文献类型：期刊论文
| 作者 | Wang, QN; Shi, L; Li, W; Li, WC; Si, R; Schuth, F; Lu, AH |
| 刊名 | CATALYSIS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 8期号:2页码:472-479 |
| 关键词 | Copper-based Catalysts Cu/sio2 Catalysts Dimethyl Oxalate Highly Efficient Ethylene-glycol Acetic-acid Oxide Hydrogenation Conversion Oxidation |
| ISSN号 | 2044-4753 |
| DOI | 10.1039/c7cy02057k |
| 文献子类 | 期刊论文 |
| 英文摘要 | We 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000423483200007 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/28953]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Wang, QN 2.Shi, L 3.Li, W 4.Li, WC 5.Si, R 6.Schuth, F 7.Lu, AH |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：上海应用物理研究所
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