Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 45, Pages 39002-39008Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b16256
Keywords
methanol oxidation reaction; nonprecious-metal catalysts; nanosheets; electrochemical performance; electrocatalysts
Funding
- National Natural Science Foundation of China [51702099]
- Shanghai Sailing Program [17YF1403800]
- China Postdoctoral Science Foundation [2017M611500]
- Opening Project of the State Key Laboratory of High Performance Ceramics and Superfine Microstructure [SKL201702SIC]
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With the booming of non-noble-metal electrocatalysts for efficient oxygen reduction reaction under alkaline conditions, corresponding anodic catalysts for methanol oxidation are urgently needed especially for direct methanol fuel cells with alkaline membranes. Here, we report the facile synthesis of a CuO/Co(OH)(2)-nanosheet composite as a novel kind of high-performance electrochemical methanol oxidation reaction (MOR) catalyst. The obtained material with an optimized Cu/Co ratio shows much enhanced mass activity and area-specific activity, as well as excellent stability. The electronic structure interaction between Cu and Co, which results in the Co ion binding-energy elevation, is considered to be the origin of high MOR performance. This work promises the great potential of cobalt hydroxide as a novel kind of MOR catalyst and may arouse much interest in exploring more hydroxides as efficient nonprecious-metal electrocatalysts for MOR.
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