pt基电催化剂与过渡金属氧化物/氮化物/碳化物在氧还原反应中的强金属支撑相互作用

IF 3.3 3区物理与天体物理 Q2 PHYSICS, CONDENSED MATTER

Superlattices and Microstructures Pub Date : 2023-01-01 DOI:10.20517/microstructures.2023.12

Min Chen

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引用次数: 1

摘要

碳负载pt基催化剂在质子交换膜燃料电池(pemfc)中氧还原反应(ORR)的实际应用仍然面临许多限制，包括碳腐蚀和与pt基纳米颗粒(NPs)的弱相互作用。利用pt基纳米颗粒与替代耐腐蚀非碳载体之间界面上的强金属-载体相互作用(SMSI)效应是解决这些问题的有效策略。合理设计具有良好SMSI的pt基催化剂并阐明这种相互作用的机制对于获得理想的活性和稳定性是必不可少的。本文首先简要介绍了ORR的基本原理。接下来，详细讨论了SMSI的形成过程、构建策略以及代表性载体，包括过渡金属氧化物、氮化物和碳化物(分别为TMOs、TMCs和TMNs)的优缺点。最后，指出了SMSI效应在ORR中实际应用中面临的挑战和前景。

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Strong metal-support interaction of Pt-based electrocatalysts with transition metal oxides/nitrides/carbides for oxygen reduction reaction

The practical application of carbon-supported Pt-based catalysts for the oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFCs) still faces many limitations, including carbon corrosion and their weak interaction with Pt-based nanoparticles (NPs). Harnessing the strong metal-support interaction (SMSI) effects at the interface between Pt-based nanoparticles and alternative corrosion-resistant non-carbon support is an effective strategy to address these issues. The rational design of Pt-based catalysts with favorable SMSI and elucidation of the mechanisms underlying such interactions is indispensable for achieving desirable activity and stability. In this review, first, the basic principles of the ORR are briefly introduced. Next, the formation process of SMSI, construction strategies, and the advantages and drawbacks of representative supports, including transition metal oxides, nitrides, and carbides (TMOs, TMCs, and TMNs, respectively), are fully discussed. Finally, the challenges and prospects in promoting the practical applications of the SMSI effect for ORR are highlighted.

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来源期刊

Superlattices and Microstructures 物理-物理：凝聚态物理

CiteScore

6.10

自引率

3.20%

发文量

审稿时长

2.8 months

期刊介绍： Micro and Nanostructures is a journal disseminating the science and technology of micro-structures and nano-structures in materials and their devices, including individual and collective use of semiconductors, metals and insulators for the exploitation of their unique properties. The journal hosts papers dealing with fundamental and applied experimental research as well as theoretical studies. Fields of interest, including emerging ones, cover: • Novel micro and nanostructures • Nanomaterials (nanowires, nanodots, 2D materials ) and devices • Synthetic heterostructures • Plasmonics • Micro and nano-defects in materials (semiconductor, metal and insulators) • Surfaces and interfaces of thin films In addition to Research Papers, the journal aims at publishing Topical Reviews providing insights into rapidly evolving or more mature fields. Written by leading researchers in their respective fields, those articles are commissioned by the Editorial Board. Formerly known as Superlattices and Microstructures, with a 2021 IF of 3.22 and 2021 CiteScore of 5.4