期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 56, 期 37, 页码 11258-11262出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201705385
关键词
catalyst stability; electrocatalysis; layered double hydroxides; polybenzoxazine; water oxidation
资金
- the Deutsche Forschungsgemeinschaft (DFG) [EXC1069]
- Bundesministerium fur Bildung und Forschung (BMBF) [FKZ 03EK3548]
Highly active electrocatalysts for the oxygen evolution (OER) reaction are in most cases powder nanomaterials, which undergo substantial changes upon applying the high potentials required for high-current-density oxygen evolution. Owing to the vigorous gas evolution, the durability under OER conditions is disappointingly low for most powder electrocatalysts as there are no strategies to securely fix powder catalysts onto electrode surfaces. Thus reliable studies of catalysts during or after the OER are often impaired. Herein, we propose the use of composites made from precursors of polybenzoxazines and organophilically modified NiFe layered double hydroxides (LDHs) to form a stable and highly conducting catalyst layer, which allows the study of the catalyst before and after electrocatalysis. Characterization of the material by XRD, SEM, and TEM before and after 100 h electrolysis in 5 M KOH at 60 degrees C and a current density of 200 mA cm(-2) revealed previously not observed structural changes.
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