期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 9, 期 2, 页码 473-477出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ee03453a
关键词
-
资金
- EPFL
The development of efficient and Earth-abundant oxygen evolution reaction (OER) catalysts is essential for the generation of renewable hydrogen. The synthesis of nanoporous and high-surface-area catalysts remains challenging. Herein, we show that large nano-cubes of perovskite hydroxide CoSn(OH)(6) can be electrochemically etched to form a highly active OER catalyst, reaching 10mA cm(-2) at an overpotential (eta) of only 274 mV. The good catalytic activity was attributed to the formation of hierarchical nanoporous CoOOH particles, which were created by selective dissolution of Sn hydroxides. Crystal defects of oxygen vacancies appear to be important for the formation of active catalysts.
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