Engineering Hydrogen Generation Sites to Promote Electrocatalytic CO2 Reduction to Formate
文献类型：期刊论文
| 作者 | Guo, XY; Xu, SM; Zhou, H; Ren, Y; Ge, RX; Xu, M; Zheng, LR ; Kong, XG; Shao, MF; Li, ZH
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| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2022 |
| 卷号 | 12期号:17页码:10551-10559 |
| 关键词 | CO2 electrocatalytic reduction formate reactive hydrogen cooperative catalyst |
| DOI | 10.1021/acscatal.2c02548 |
| 文献子类 | Article |
| 英文摘要 | Electrocatalytic reduction of carbon dioxide (CO2ER) to produce formate is an economically viable route for CO2 upgrading. Bismuth (Bi)-based materials have been recognized as promising catalysts for this reaction but suffer from low activity that hinders their practical applications. Here, we report a cooperative catalyst of silver nanoparticles (Ag NPs) supported on a layered bismuth subcarbonate (Bi2O2CO3; BOC) nanosheet array (Ag/BOC), which achieves a 2-fold higher reaction rate in comparison to pure BOC with a high Faradaic efficiency (FE) of 98% to formate, and the FE is maintained at > 85% over a wide potential window from -0.86 to -1.26 V vs RHE. Experimental results combined with theoretical results reveal that Ag accelerates the dissociation of H2O to supply reactive hydrogen species, which migrate to adjacent Bi sites to accomplish CO(2 )reduction with promoted activity. Moreover, we realized coproduction of formate at two poles of a homemade two-electrode flow cell by pairing the CO2ER (at the cathode) and electrooxidation of glycerol (at the anode), achieving an apparent formate FE of 130% at 2.2 V, as well as a 63% electric energy saving for formate production in comparison with the traditional CO2ER coupled with the water oxidation reaction. |
| 电子版国际标准刊号 | 2155-5435 |
| 语种 | 英语 |
| WOS记录号 | WOS:000875175300001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299082]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Guo, XY,Xu, SM,Zhou, H,et al. Engineering Hydrogen Generation Sites to Promote Electrocatalytic CO2 Reduction to Formate[J]. ACS CATALYSIS,2022,12(17):10551-10559. |
| APA | Guo, XY.,Xu, SM.,Zhou, H.,Ren, Y.,Ge, RX.,...&Duan, HH.(2022).Engineering Hydrogen Generation Sites to Promote Electrocatalytic CO2 Reduction to Formate.ACS CATALYSIS,12(17),10551-10559. |
| MLA | Guo, XY,et al."Engineering Hydrogen Generation Sites to Promote Electrocatalytic CO2 Reduction to Formate".ACS CATALYSIS 12.17(2022):10551-10559. |
入库方式： OAI收割
来源：高能物理研究所
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