Bifunctional Single Atom Catalysts for Rechargeable Zinc–Air Batteries: From Dynamic Mechanism to Rational Design

Author:

Zhang Peng1,Chen Kuo1,Li Jiaye1,Wang Minmin1,Li Min1,Liu Yunqi1,Pan Yuan1ORCID

Affiliation:

1. State Key Laboratory of Heavy Oil Processing China University of Petroleum (East China) Qingdao 266580 China

Abstract

AbstractEver‐growing demands for rechargeable zinc–air batteries (ZABs) call for efficient bifunctional electrocatalysts. Among various electrocatalysts, single atom catalysts (SACs) have received increasing attention due to the merits of high atom utilization, structural tunability, and remarkable activity. Rational design of bifunctional SACs relies heavily on an in‐depth understanding of reaction mechanisms, especially dynamic evolution under electrochemical conditions. This requires a systematic study in dynamic mechanisms to replace current trial and error modes. Herein, fundamental understanding of dynamic oxygen reduction reaction and oxygen evolution reaction mechanisms for SACs is first presented combining in situ and/or operando characterizations and theoretical calculations. By highlighting structure–performance relationships, rational regulation strategies are particularly proposed to facilitate the design of efficient bifunctional SACs. Furthermore, future perspectives and challenges are discussed. This review provides a thorough understanding of dynamic mechanisms and regulation strategies for bifunctional SACs, which are expected to pave the avenue for exploring optimum single atom bifunctional oxygen catalysts and effective ZABs.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Shandong Province

Fundamental Research Funds for the Central Universities

Publisher

Wiley

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

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