Dual-layer cocatalysts of Co-Pi and Ni(OH)2 on BiVO4 photoanodes for efficient water oxidation

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-05-16 DOI:10.1093/chemle/upae096

Yu Zhang, Peng Guo, Yonghua Tang, Hongxing Li, R. Mo

引用次数: 0

Abstract

Slow oxygen evolution kinetics and severe corrosion limit the further application of BiVO4 photoelectrodes in photoelectrochemical water splitting. Here, BiVO4/Co-Pi/Ni(OH)2 photoanodes were synthetized aiming at improving its photoelectric conversion efficiency and stability. Compared with pure BiVO4 photoanode, the BiVO4/Co-Pi/Ni(OH)2 photoanode enhanced the photocurrent from 1.1 mA/cm2 to 4.5 mA/cm2 at 1.23 V versus reversible hydrogen electrode. In addition, Ni(OH)2 acted as a corrosion protection layer on the surface of the photoanode, allowing the BiVO4/Co-Pi/Ni(OH)2 photoanode to exhibit excellent stability.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

BiVO4 光阳极上的 Co-Pi 和 Ni(OH)2双层协同催化剂用于高效水氧化

缓慢的氧进化动力学和严重的腐蚀限制了 BiVO4 光电极在光电化学水分离中的进一步应用。在此，我们合成了 BiVO4/Co-Pi/Ni(OH)2 光阳极，旨在提高其光电转换效率和稳定性。与纯 BiVO4 光阳极相比，BiVO4/Co-Pi/Ni(OH)2 光阳极在 1.23 V 电压下对可逆氢电极的光电流从 1.1 mA/cm2 提高到 4.5 mA/cm2。此外，Ni(OH)2 在光阳极表面起到了腐蚀保护层的作用，使 BiVO4/Co-Pi/Ni(OH)2 光阳极表现出卓越的稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.