Mechanistic insights into dual active sites in Au@W18O49 electrocatalysts for the hydrogen evolution reaction
文献类型：期刊论文
| 作者 | Yu, Yaqin; Zhou, Zhen; Song, Xiaoping; Song, Xiaowei; Zhang, Zhengdong; Jing, Chuanyong
|
| 刊名 | INORGANIC CHEMISTRY FRONTIERS
 |
| 出版日期 | 2022-09-13 |
| 卷号 | 9期号:18页码:4785-4793 |
| 关键词 | CATALYTIC-ACTIVITY EFFICIENT PERFORMANCE NANOFIBERS NANOSHEETS |
| ISSN号 | 2052-1553 |
| 英文摘要 | Electrocatalytic hydrogen evolution reaction (HER) for water splitting is a promising approach to replace the use of fossil fuels. The high-efficiency electrocatalyst with multiple functional sites is indispensable but challenging. Herein, an urchin-like Au@W18O49 electrocatalyst with dual-functional sites of Au and oxygen vacancies (OVs) is employed for the enhanced HER. The Au@W18O49 with Au/OV ratio at 0.70 exhibits an overpotential of 79 mV at a current density of 10 mA cm(-2) and a Tafel slope of 58 mV dec(-1). The optimal Au/OV ratio delicately balances the generation and transformation of H* intermediates, contributing to the superior hydrogen insertion/extraction efficiency of Au@W18O49-0.70. The increased delocalized electronic states and synergistic co-existence of Au and OVs improved the activity and durability of Au@W18O49-0.70 in the HER process. The findings in this work may provide a new avenue for developing efficient and stable catalysts with multi-active sites. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47571]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 通讯作者 | Zhang, Zhengdong |
| 作者单位 | 1.Natl Inst Metrol, Ctr Environm Metrol, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Res Ctr EcoEnvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 3.Beijing Special Engn Design & Res Inst, State Key Lab Technol Space Cryogen Propellants, Beijing 100028, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Yaqin,Zhou, Zhen,Song, Xiaoping,et al. Mechanistic insights into dual active sites in Au@W18O49 electrocatalysts for the hydrogen evolution reaction[J]. INORGANIC CHEMISTRY FRONTIERS,2022,9(18):4785-4793. |
| APA | Yu, Yaqin,Zhou, Zhen,Song, Xiaoping,Song, Xiaowei,Zhang, Zhengdong,&Jing, Chuanyong.(2022).Mechanistic insights into dual active sites in Au@W18O49 electrocatalysts for the hydrogen evolution reaction.INORGANIC CHEMISTRY FRONTIERS,9(18),4785-4793. |
| MLA | Yu, Yaqin,et al."Mechanistic insights into dual active sites in Au@W18O49 electrocatalysts for the hydrogen evolution reaction".INORGANIC CHEMISTRY FRONTIERS 9.18(2022):4785-4793. |
入库方式： OAI收割
来源：生态环境研究中心
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