E-resources
Peer reviewed
-
Ouyang, Ting; Ye, Ya-Qian; Wu, Chun-Yan; Xiao, Kang; Liu, Zhao-Qing
Angewandte Chemie International Edition, 04/2019, Volume: 58, Issue: 15Journal Article
Herein, we demonstrate the use of heterostructures comprised of Co/β-Mo C@N-CNT hybrids for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in an alkaline electrolyte. The Co can not only create a well-defined heterointerface with β-Mo C but also overcomes the poor OER activity of β-Mo C, thus leading to enhanced electrocatalytic activity for HER and OER. DFT calculations further proved that cooperation between the N-CNTs, Co, and β-Mo C results in lower energy barriers of intermediates and thus greatly enhances the HER and OER performance. This study not only provides a simple strategy for the construction of heterostructures with nonprecious metals, but also provides in-depth insight into the HER and OER mechanism in alkaline solution.
