Performance and mechanism of CuO/CuZnAl hydrotalcites-ZnO for photocatalytic selective oxidation of gaseous methanol to methyl formate at ambient temperature
文献类型：期刊论文
| 作者 | Liang, Xiaoyuan2; Yang, Xuzhuang2; Gao, Guanjun2; Li, Changfu2; Li, Yuanyuan2; Zhang, Weida2; Chen, Xuetao2; Zhang, Yanbing2; Zhang, Bingbing2; Lei, Yanqiu2 |
| 刊名 | JOURNAL OF CATALYSIS
 |
| 出版日期 | 2016-07-01 |
| 卷号 | 339页码:68-76 |
| 关键词 | Photocatalysis Methanol Methyl Formate Copper Catalyst Reaction Mechanism |
| ISSN号 | 0021-9517 |
| DOI | 10.1016/j.jcat.2016.03.033 |
| 文献子类 | Article |
| 英文摘要 | The photocatalytic selective oxidation of methanol to methyl formate at 26-45 degrees C under UV irradiation has been studied for the first time on the catalyst CuO supported on nanocomposites of CuZnAl hydrotalcites and ZnO. The catalyst exhibits high activity for this reaction, with a maximum methyl formate yield of 50% at 30 degrees C and no by-product other than CO2, although both ZnO and hydrotalcites are nonactive for the reaction. The interfaces between ZnO and CuZnAl hydrotalcites play an important role in the reaction, not only supplying necessary hydroxyls but also generating holes with redox potential positive enough for the reaction under UV irradiation due to the band bending at the interface. Copper oxide is photoreduced to metallic Cu during the reaction, which plays a role in trapping photoexcited electrons from the conduction band of the support as well as in dissociating chemisorbed oxygen. (C) 2016 Elsevier Inc. All rights reserved. |
| WOS关键词 | VISIBLE-LIGHT IRRADIATION ; LAYERED DOUBLE HYDROXIDES ; X-RAY PHOTOELECTRON ; H-2 PRODUCTION ; WORK FUNCTION ; PROGRAMMED REDUCTION ; GRAPHENE OXIDE ; LIQUID-PHASE ; FUEL-CELLS ; GAS-PHASE |
| WOS研究方向 | Chemistry ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000378453700009 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170528]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Yang, Xuzhuang |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Inner Mongolia Univ, Sch Chem & Chem Engn, Hohhot 010021, Inner Mongolia, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Xiaoyuan,Yang, Xuzhuang,Gao, Guanjun,et al. Performance and mechanism of CuO/CuZnAl hydrotalcites-ZnO for photocatalytic selective oxidation of gaseous methanol to methyl formate at ambient temperature[J]. JOURNAL OF CATALYSIS,2016,339:68-76. |
| APA | Liang, Xiaoyuan.,Yang, Xuzhuang.,Gao, Guanjun.,Li, Changfu.,Li, Yuanyuan.,...&Shi, Quanquan.(2016).Performance and mechanism of CuO/CuZnAl hydrotalcites-ZnO for photocatalytic selective oxidation of gaseous methanol to methyl formate at ambient temperature.JOURNAL OF CATALYSIS,339,68-76. |
| MLA | Liang, Xiaoyuan,et al."Performance and mechanism of CuO/CuZnAl hydrotalcites-ZnO for photocatalytic selective oxidation of gaseous methanol to methyl formate at ambient temperature".JOURNAL OF CATALYSIS 339(2016):68-76. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。