Study on chemical degradation of proton exchange membrane in simulated PEM fuel cell environments

被引：0

作者：

Wang Y. ^{[1
]}

Tan J. ^{[1
]}

机构：

[1] College of Mechanical and Power Engineering, Nanjing Tech University, Nanjing

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 09期

关键词：

Degradation; Fuel cell environment; Proton exchange membrane; Proton exchange membrane fuel cell;

D O I：

10.19912/j.0254-0096.tynxb.2019-0910

中图分类号：

学科分类号：

摘要：

In this paper, the chemical damage of a proton exchange membrane(Nafion212 membrane) in simulated proton exchange membrane (PEM) fuel cell environments are studied. The mass loss of the Nafion212 membrane in the simulated PEM fuel cell environments was studied experimentally. Scanning electron microscopy (SEM) was used to investigate the morphology of Nafion212 membrane surface. The chemical changes of the sample surface were studied by Attenuated Total Reflection Fourier Transform Infrared Spectroscopy (ATR-FTIR). The test results show that the mass of the Nafion212 membrane in the accelerated durability test (ADT) solution significantly lost, while the mass change in the regular solution(RS) was not obvious. The SEM results show that the holes on the surface of the sample appeared in the ADT solution with the aging time, and gradually deepen. The ATR-FTIR test results show that the molecular structure of the sample surface changed significantly in the simulated fuel cell environment with the aging time, resulting in the chemical damage of the proton exchange membrane. The damage of the membrane is mainly due to the fracture of the main chain and the side chain. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.

引用

页码：434 / 438

页数：4

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