STUDY ON DEGRADATION OF PROTON EXCHANGE MEMBRANE IN SIMULATED PEM FUEL CELL ENVIRONMENTS

Yang Weizhan; Tan Jinzhu; Liu Jiaran; Xia Wei; Wang Yankang

doi:10.19912/j.0254-0096.tynxb.2021-0220

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (9) : 493-498. DOI: 10.19912/j.0254-0096.tynxb.2021-0220

STUDY ON DEGRADATION OF PROTON EXCHANGE MEMBRANE IN SIMULATED PEM FUEL CELL ENVIRONMENTS

Yang Weizhan, Tan Jinzhu, Liu Jiaran, Xia Wei, Wang Yankang

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Abstract

In this work, in order to investigate the material degradation of PEM, the PEM was exposed to the simulated PEMFC environments. In order to simulate PEMFC environments, two solutions were selected. One of the solutions was called as the regular solution（RS）, close to the real PEM fuel cell environment,and another solution was an accelerated durability test（ADT）solution for the accelerated aging tests. Attenuated total reflection Fourier transform infrared spectroscopy （ATR-FTIR） and X-ray photoelectron spectroscopy （XPS） were used to study the surface chemistry change of aging samples. The mechanical properties tests were conducted for the samples before and after aging. The experimental results show that with the increase of aging time, the molecular structure and chemical composition of the sample surface change significantly, the tensile strength and elongation at break decreased, and the degradation of the sample material increased.

Key words

proton exchange membrane fuel cells / proton exchange membrane / aging / degradation

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Yang Weizhan, Tan Jinzhu, Liu Jiaran, Xia Wei, Wang Yankang. STUDY ON DEGRADATION OF PROTON EXCHANGE MEMBRANE IN SIMULATED PEM FUEL CELL ENVIRONMENTS[J]. Acta Energiae Solaris Sinica. 2022, 43(9): 493-498 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0220

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