Hierarchical sheet-interconnected fan-shaped N/S-containing Co-based metal organic frameworks for effectively catalyzing oxygen reduction and oxygen evolution reactions

IF 4.5 3区化学 Q1 Chemical Engineering

Journal of Electroanalytical Chemistry Pub Date : 2023-09-15 Epub Date: 2023-07-25 DOI:10.1016/j.jelechem.2023.117686

Jie Bai, Ruichen Li, Jiancheng Huang, Ziang Xu, Shujun Chao

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引用次数: 0

Abstract

The development of cost-effective non-precious metal bifunctional catalysts has become a promising path to meet the commercialization needs of rechargeable zinc-air batteries. Herein, an effective bifunctional catalyst, hierarchical sheet-interconnected fan-shaped N/S-containing Co-based metal organic frameworks (HSFS-N/S-Co-MOFs), has been constructed using 1,2-bis(4-pyridyl)ethane and thiophene-2,5-dicarboxylic acid as dual ligands through a solvothermal approach. Additionally, several cations and anions may affect the microstructures, surface compositions, surface areas, oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) activities of the constructed N/S-MOFs. As a result, the hierarchical sheet-interconnected fan-shaped structure and N/S dual introduction make HSFS-N/S-Co-MOFs exhibit favorable ORR and OER performance in alkaline medium. The current research provides an option to rationally construct other MOFs-based electrocatalysts.

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有效催化氧还原和析氧反应的层次化薄片互连扇形含氮/硫钴基金属有机骨架

开发高性价比的非贵金属双功能催化剂已成为满足可充电锌-空气电池商业化需求的重要途径。本文以1,2-双(4-吡啶基)乙烷和噻吩-2,5-二羧酸为双配体，通过溶剂热方法构建了一种有效的双功能催化剂，即层次化薄片互连的扇形含N/ s钴基金属有机骨架(HSFS-N/S-Co-MOFs)。此外，阳离子和阴离子也会影响所构建的N/ s - mof的微观结构、表面组成、表面积、氧还原反应(ORR)和析氧反应(OER)活性。结果表明，分层片状互连的扇形结构和N/S双引入使得HSFS-N/S- co - mof在碱性介质中表现出良好的ORR和OER性能。本研究为合理构建其他基于mofs的电催化剂提供了一种选择。

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来源期刊

Journal of Electroanalytical Chemistry Chemical Engineering-General Chemical Engineering

CiteScore

7.50

自引率

6.70%

发文量

912

审稿时长

>12 weeks

期刊介绍： The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied. Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.