纳米线
分解水
异质结
析氧
电化学
化学工程
材料科学
纳米颗粒
贵金属
电子转移
催化作用
电催化剂
化学
过渡金属
金属
无机化学
纳米技术
冶金
光化学
电极
光电子学
光催化
物理化学
工程类
生物化学
作者
Zhenhua Ge,Bin Fu,Xing Li,Jinping Zhao,Bo Ma,Zhiqiang Luo,Yantao Chen
标识
DOI:10.1016/j.jpowsour.2020.228731
摘要
Electrochemical water splitting is a very prospective technique to obtain the green hydrogen fuel. The oxygen evolution reaction becomes a limitation owing to the multiple electron transfer process. Thereby, a lot of attention is paid on the development of noble-metal free electrocatalysts for boosting the water oxidation process. The heterostructure of Mn3O4 nanoparticles on Cu(OH)2 nanowire arrays is fabricated, which exhibits an electrocatalytic activity close to RuO2. Compared with the single (hydro)oxides, the largely improved performance of the heterostructure towards water oxidation can be attributed to the enhanced charge transfer by the electronic interaction across the interface and the increased active sites for the rational combination of different active species. This work can be valuable for highlighting the role of heterostructure in the design and development of novel transition metal-based electrocatalysts for water oxidation.
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