期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 41, 页码 36146-36153出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b09897
关键词
cobalt telluride; N-doped graphitic carbon; metal-organic framework; mesoporous architecture; oxygen evolution reaction
资金
- National Natural Science Foundation of China [51402362, 21471160, 21303266]
- PetroChina Innovation Foundation [2016D-5007-0401]
- Shandong Natural Science Foundation [ZR2017MA024, ZR2017QB015]
- Fundamental Research Funds for the Central Universities [16CX05016A, 15CX05045A, 15CX05050A, 14CX02214A, 15CX08010A]
To improve the efficiency of cobalt-based catalysts for water electrolysis, tremendous efforts have been dedicated to tuning the composition, morphology, size, and structure of the materials. We report here a facile preparation of orthorhombic CoTe2 nanocrystals embedded in an N-doped graphitic carbon matrix to form a 3D architecture with a size of similar to 500 nm and abundant mesopores of similar to 4 nm for the oxygen evolution reaction (OER). The hybrid electrocatalyst delivers a small overpotential of 300 mV at 10 mA cm(-2), which is much lower than that for pristine CoTe2 powder. After cycling for 2000 cycles or driving continual OER for 20 h, only a slight loss is observed. The mesoporous 3D architecture and the strong interaction between N-doped graphitic carbon and CoTe2 are responsible for the enhancement of the electrocatalytic performance.
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