Heteroatom-doped MNC catalysts for oxygen reduction reactions: Doping strategies and active site regulation

IF 4.5 3区 化学 Q1 Chemical Engineering Journal of Electroanalytical Chemistry Pub Date : 2023-08-15 DOI:10.1016/j.jelechem.2023.117506
Yu Zhang , Siyuan Zhu , Xian Wang , Zhao Jin , Junjie Ge , Changpeng Liu , Wei Xing
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Abstract

MNC catalyst is the most potential alternative candidate for precious metal-based catalyst and has been widely concerned by researchers in recent years. As a simple and effective means, heteroatom doping is widely used to improve catalyst performance. It has been proved that heteroatom can adjust the intrinsic activity of catalyst sites by optimizing the electronic structure of MNx active sites. This review provides a comprehensive discussion on the influence of heteroatom doping on catalytic activity and the modulation of active centers in MNC catalysts. The various methods of introducing heteroatoms into MNC catalysts are thoroughly examined, and common strategies for heteroatom doping are summarized. Additionally, this article addresses current challenges in the research of MNC catalysts and suggests potential future directions for their development.

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氧还原反应的杂原子掺杂MNC催化剂:掺杂策略和活性位点调控
MNC催化剂是贵金属基催化剂最有潜力的替代品,近年来受到研究人员的广泛关注。杂原子掺杂作为一种简单有效的手段,被广泛用于改善催化剂的性能。实验证明杂原子可以通过优化MNx活性位点的电子结构来调节催化剂位点的本征活性。本文就杂原子掺杂对MNC催化剂催化活性的影响及活性中心的调节进行了综述。对杂原子掺杂MNC催化剂的各种方法进行了深入的研究,总结了常用的杂原子掺杂策略。此外,本文还指出了目前MNC催化剂研究中存在的挑战,并提出了其未来发展的潜在方向。
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来源期刊
Journal of Electroanalytical Chemistry
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.
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