Br-induced P-poor defective nickel phosphide for highly efficient overall water splitting
文献类型：期刊论文
| 作者 | Xu, Tianyi; Jiao, Dongxu; Zhang, Lei ; Zhang, Haiyan; Zheng, Lirong; Singh, David J.,; Zhao, Jingxiang; Zheng, Weitao; Cui, Xiaoqiang
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| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2022 |
| 卷号 | 316页码:121686 |
| ISSN号 | 09263373 |
| DOI | 10.1016/j.apcatb.2022.121686 |
| 文献子类 | Article |
| 英文摘要 | Development of efficient electrocatalysts requires construction of catalytic surfaces with moderate H adsorption energy. Here, we address this challenge by Br-induced formation of P-poor defective nickel phosphide and show that the H adsorption energy can be optimized by regulating the vacancy concentration. We show that when such defective Ni12P5−xBrx nanoparticles are distributed on the surface of Ni2P nanosheets (Ni12P5−xBrx/Ni2P NS), excellent catalytic activity for water splitting is obtained in alkaline media. Density functional theory computations revealed that Br doping induce the formation of a P-poor nickel phosphide with vacancies, leading to an optimal H adsorption strength with a volcano-type relationship. This is the best reported for a non-precious metal phosphide at present: the overpotential for HER is 18 mV at 10 mA cm−2 and 155 mV for OER. This leads to an exceptionally low cell voltage requirement of only 1.44 V to drive overall water splitting in an alkaline electrolyzer. © 2022 |
| 语种 | 英语 |
| WOS记录号 | WOS:000862449900003 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299183]  |
| 专题 | 高能物理研究所_加速器中心 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 | Xu, Tianyi,Jiao, Dongxu,Zhang, Lei,et al. Br-induced P-poor defective nickel phosphide for highly efficient overall water splitting[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2022,316:121686. |
| APA | Xu, Tianyi.,Jiao, Dongxu.,Zhang, Lei.,Zhang, Haiyan.,Zheng, Lirong.,...&Cui, Xiaoqiang.(2022).Br-induced P-poor defective nickel phosphide for highly efficient overall water splitting.APPLIED CATALYSIS B-ENVIRONMENTAL,316,121686. |
| MLA | Xu, Tianyi,et al."Br-induced P-poor defective nickel phosphide for highly efficient overall water splitting".APPLIED CATALYSIS B-ENVIRONMENTAL 316(2022):121686. |
入库方式： OAI收割
来源：高能物理研究所
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