Effect of different atmosphere heat treatment on the oxygen reduction performance of Pt/C catalysts prepared by continuous pipeline microwave technology

被引：0

作者：

Feng Z. ^{[1
]}

Zhang C. ^{[1
,2
]}

Liu D. ^{[1
]}

Wang Y. ^{[1
]}

Ma Q. ^{[1
]}

Wang C. ^{[2
]}

机构：

[1] Hubei Key Laboratory of Power System Design and Test for Electrical Vehicle, Research Institute of Smart Transportation, Hubei University of Arts and Science, Hubei, Xiangyang

[2] Institute of Nuclear Energy and New Energy Technology, Tsinghua University, Beijing

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2024年 / 43卷 / 06期

关键词：

attenuation test; catalyst; fuel cells; heat treatment; oxygen reduction performance;

D O I：

10.16085/j.issn.1000-6613.2023-0729

中图分类号：

学科分类号：

摘要：

Vehicle proton-exchange membrane fuel cell is an important energy conversion device to solve the energy crisis and environmental degradation issues. However, the high cost and slow cathodic oxygen reduction reaction kinetics and poor stability of cathode catalyst in long-term operation have become the main challenges in its development. As such, a continuous pipeline microwave preparation technology was used to prepare a catalyst with 50% (mass) platinum loading. The Pt/C catalyst was annealed in two different atmospheres, namely, nitrogen hydrogen mixture (20% H2) and air. The effect of heat treatment in the two atmospheres on the oxygen reduction performance were studied through characterization and testing. The Pt/C-300 (20% H2) catalyst can still maintain a high activity of 71.4 m2/g and 243mA/mg after 30000 cycles of attenuation testing, achieving both high activity and high durability. This work provides an effective and feasible way for the production of catalysts with high oxygen reduction performance. © 2024 Chemical Industry Press Co., Ltd.. All rights reserved.

引用

页码：3080 / 3092

页数：12

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