Dual‐Atom Catalysts Derived from a Preorganized Covalent Organic Framework for Enhanced Electrochemical Oxygen Reduction

Author:

Zhang Wen‐Da1,Zhou Lang1,Shi Ya‐Xiang1,Liu Yong1,Xu Hanwen1,Yan Xiaodong1,Zhao Yan2,Jiang Yuqin3,Zhang Jiangwei2ORCID,Gu Zhi‐Guo1

Affiliation:

1. Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi 214122 P. R. China

2. Science Center of Energy Material and Chemistry Inner Mongolia University Hohhot 010021 P. R. China

3. Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 P. R. China

Abstract

AbstractDual‐atom catalysts (DAC) are deemed as promising electrocatalysts due to the abundant active sites and adjustable electronic structure, but the fabrication of well‐defined DAC is still full of challenges. Herein, bonded Fe dual‐atom catalysts (Fe2DAC) with Fe2N6C8O2 configuration were developed through one‐step carbonization of a preorganized covalent organic framework with bimetallic Fe chelation sites (Fe2COF). The transition from Fe2COF to Fe2DAC involved the dissociation of the nanoparticles and the capture of atoms by carbon defects. Benefitting from the optimized d‐band center and enhanced adsorption of OOH* intermediates, Fe2DAC exhibited outstanding oxygen reduction activity with a half‐wave potential of 0.898 V vs. RHE. This work will guide more fabrication of dual‐atom and even cluster catalysts from preorganized COF in the future.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

General Medicine

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Dual-Atom Catalysts for Metal-Air Batteries;Atomically Precise Electrocatalysts for Electrochemical Energy Applications;2024

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