Structural Transformation of Heterogeneous Materials for Electrocatalytic Oxygen Evolution Reaction

化学 电催化剂 分解水 转化(遗传学) 析氧 催化作用 阳极 纳米技术 合理设计 电化学 生化工程 电极 材料科学 物理化学 生物化学 光催化 基因 工程类
作者
Hui Ding,Hongfei Liu,Wangsheng Chu,Changzheng Wu,Yi Xie
出处
期刊:Chemical Reviews [American Chemical Society]
卷期号:121 (21): 13174-13212 被引量:346
标识
DOI:10.1021/acs.chemrev.1c00234
摘要

Electrochemical water splitting for hydrogen generation is a promising pathway for renewable energy conversion and storage. One of the most important issues for efficient water splitting is to develop cost-effective and highly efficient electrocatalysts to drive sluggish oxygen-evolution reaction (OER) at the anode side. Notably, structural transformation such as surface oxidation of metals or metal nonoxide compounds and surface amorphization of some metal oxides during OER have attracted growing attention in recent years. The investigation of structural transformation in OER will contribute to the in-depth understanding of accurate catalytic mechanisms and will finally benefit the rational design of catalytic materials with high activity. In this Review, we provide an overview of heterogeneous materials with obvious structural transformation during OER electrocatalysis. To gain insight into the essence of structural transformation, we summarize the driving forces and critical factors that affect the transformation process. In addition, advanced techniques that are used to probe chemical states and atomic structures of transformed surfaces are also introduced. We then discuss the structure of active species and the relationship between catalytic performance and structural properties of transformed materials. Finally, the challenges and prospects of heterogeneous OER electrocatalysis are presented.
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