Atomically Dispersed Metal-Nitrogen-Carbon Catalysts for Oxygen Reduction Reaction: From Heteroatom Coordination Engineering to Stability Enhancement Strategies

IF 8.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-08 DOI:10.1021/acsmaterialslett.6c00815

Jinxiang Chou, Dan Wang, Yankun Wei, Yukai Chen, Xiaojiao Du, Wenchang Wang, Naotoshi Mitsuzaki, Zhidong Chen

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Abstract

Atomically dispersed metal−nitrogen−carbon (M−N−C) catalysts have emerged as promising alternatives to platinum-based catalysts for the oxygen reduction reaction (ORR). However, comprehensive and systematic reviews focusing on activity-enhancement engineering and stability-improvement strategies remain scarce, leading to an ambiguous understanding of the structure-activity-stability relationship. Therefore, this review systematically summarizes heteroatom doping engineering, and stability enhancement strategies, aiming to offering new insights to break the activity-stability trade-off. Firstly, the regulation mechanisms of heteroatom doping strategies on the electronic structure of active centers and ORR performance are discussed in depth. Specifically, this review encompasses the electronic modulation of the central metal via first coordination shell engineering, the structural optimization of the carbon support through second-shell doping, and the synergistic catalytic effects derived from multiheteroatom codoping. Then, the deactivation mechanisms of M–N–C catalysts are summarized, along with corresponding strategies for stability enhancement. Finally, future research directions for atomically dispersed M–N–C catalysts are proposed.

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氧还原反应的原子分散金属-氮-碳催化剂：从杂原子配位工程到稳定性增强策略

原子分散的金属-氮-碳（M - N - C）催化剂已成为氧还原反应（ORR）中铂基催化剂的有希望的替代品。然而，针对活性增强工程和稳定性改善策略的全面和系统的综述仍然很少，导致对结构-活性-稳定性关系的理解模糊不清。因此，本文系统总结了杂原子掺杂工程和稳定性增强策略，旨在为打破活性-稳定性权衡提供新的见解。首先，深入探讨了杂原子掺杂策略对活性中心电子结构和ORR性能的调控机制。具体来说，本文综述了通过第一配位壳层工程对中心金属的电子调制，通过第二配位壳层掺杂对碳载体的结构优化，以及多杂原子共掺杂产生的协同催化效应。总结了M-N-C催化剂的失活机理，并提出了相应的增强稳定性策略。最后，对原子分散M-N-C催化剂的研究方向进行了展望。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.