期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 141, 期 17, 页码 7005-7013出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.9b01214
关键词
-
资金
- National Key Project on Basic Research [2015CB932302]
- National Natural Science Foundation of China [91645123, 21773263]
- National Postdoctoral Program for Innovative Talents [BX2001700250]
Ni or Co is commonly required in efficient electrocatalysts for oxygen evolution reaction (OER). Although Fe is much more abundant and cheaper, full-Fe or Fe-rich catalysts suffer from insufficient activity. Herein, we discover that Se-doping can drastically promote OER on FeOOH and develop a facile on-site electrochemical activation strategy for achieving such a Se-doped FeOOH electrode via an FeSe precatalyst. Theoretical analysis and systematic experiments prove that Se-doping enables FeOOH as an efficient and low-cost OER electrocatalyst. By optimizing the electrode structure, an industrial-level OER current output of 500 mA cm(-2) is secured at a low overpotential of 348 mV. The application of such an Fe-rich OER electrode in a practical solar-driven water splitting system demonstrates a high and stable solar-to-hydrogen efficiency of 18.55%, making the strategy promising for exploring new cost-effective and highly active electrocatalysts for clean hydrogen production.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据