Oxygen Vacancy Tuning toward Efficient Electrocatalytic CO2 Reduction to C2H4
文献类型：期刊论文
| 作者 | Gu, ZX; Yang, N; Han, P; Kuang, M; Mei, BB; Jiang, Z; Zhong, J; Li, L; Zheng, GF |
| 刊名 | SMALL METHODS
 |
| 出版日期 | 2019 |
| 卷号 | 3期号:2页码:— |
| 关键词 | ELECTROCHEMICAL REDUCTION CARBON-DIOXIDE AQUEOUS CO2 ELECTROREDUCTION NANOPARTICLES SELECTIVITY |
| ISSN号 | 2366-9608 |
| DOI | 10.1002/smtd.201800449 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Electrochemical reduction of carbon dioxide (CO2) is a promising approach to solve both renewable energy storage and carbon-neutral energy cycles, while the capability of selective reduction to C2+ products has still been quite limited. In this work, partially reduced copper oxide nanodendrites with rich surface oxygen vacancies (CuOx-Vo) are developed, serving as excellent Lewis base sites for enhanced CO2 adsorption and subsequent electrochemical reduction. Theoretical calculations reveal that these oxygen vacancy-rich CuOx surfaces provide strong binding affinities to the intermediates of *CO and *COH, but weak affinity to *CH2, thus leading to efficient formation of C2H4. As a result, the partially reduced CuOx nanodendrites exhibit one of the highest C2H4 production Faradaic efficiencies of 63%. The electrochemical stability test further shows that the C2H4 Faradaic efficiency strongly depends on the oxygen vacancy density in CuOx, which can further be regenerated for several cycles, thus suggesting the critical role of oxygen vacancies for the C-2 product selectivity. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31748]  |
| 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.Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Dept Chem, Lab Adv Mat, Shanghai 200438, Peoples R China; 2.Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China; 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Fac, Shanghai 201204, Peoples R China; 4.Soochow Univ, Inst Funct Nano & Soft Mat, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, ZX,Yang, N,Han, P,et al. Oxygen Vacancy Tuning toward Efficient Electrocatalytic CO2 Reduction to C2H4[J]. SMALL METHODS,2019,3(2):—. |
| APA | Gu, ZX.,Yang, N.,Han, P.,Kuang, M.,Mei, BB.,...&Zheng, GF.(2019).Oxygen Vacancy Tuning toward Efficient Electrocatalytic CO2 Reduction to C2H4.SMALL METHODS,3(2),—. |
| MLA | Gu, ZX,et al."Oxygen Vacancy Tuning toward Efficient Electrocatalytic CO2 Reduction to C2H4".SMALL METHODS 3.2(2019):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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