期刊
CHEMELECTROCHEM
卷 3, 期 6, 页码 906-912出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201600116
关键词
carbon nanotubes; electrocatalysis; layered double hydroxides; oxygen evolution reaction; water oxidation
资金
- National Natural Science Foundation of China [21361162004, 21522601]
- Education Department of Liaoning Province of China [T2013001]
High-efficiency, earth-abundant oxygen evolution reaction (OER) catalysts are highly desired and required for the half reaction of water splitting. Herein, an integrated system composed of CoMn layered double hydroxides (CoMn-LDH) and carbon nanotubes (CNTs) were configured for the OER. Ultrathin CoMn-LDH nanoplates can grow and assemble in situ on conducting CNT frameworks to form the CoMn-LDH/CNT nanoarchitectures. The CNT frameworks provide conducting channels for fast charge transfer, whereas CoMn-LDH features highly active sites and is capable of catalyzing the OER process. Benefiting from functional integration of the highly active CoMn-LDH nanoplates and the strong coupling effects between ultrathin nanoplates and conducting CNT frameworks, the as-made CoMn-LDH/CNT nanohybrids achieve excellent OER performance with a small overpotential (355 mV at 10 mAcm(-2)), low Tafel slope (45 mVdec(-1)), and prominent electrochemical durability.
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