Interfacial confinement of Ni-V2O3 in molten salts for enhanced electrocatalytic hydrogen evolution

• 作者: Dong Gu Hansheng Xiao Jing Zhou Wei Weng Wei Xiao
• 来源期刊: 能源化学
• 年，卷（期）: 2020,（11）
• 页码范围: 280-285
• 页数: 6页
• 语种: 英文

摘要

Implementation of non-precious electrocatalysts is key-enabling for water electrolysis to relieve challenges in energy and environmental sustainability.Self-supporting Ni-V2O3 electrodes consisting of nanostrip-like V2O3 perpendicularly anchored on Ni meshes are herein constructed via the electrochemical reduction of soluble NaVO3 in molten salts for enhanced electrocatalytic hydrogen evolution.Such a special configuration in morphology and composition creates a well confined interface between Ni and V2O3.Experimental and Density-Functional-Theory results confirm that the synergy between Ni and V2O3 accelerates the dissociation of H2O for forming hydrogen intermediates and enhances the combination of H* for generating H2.