Root cause analysis of the degradation in a unitized regenerative fuel cell

被引：12

作者：

Bhosale, Amit C. ^{[1
]}

Meenakshi, S. ^{[1
]}

Ghosh, Prakash C. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Energy Sci & Engn, Mumbai 400076, Maharashtra, India

来源：

JOURNAL OF POWER SOURCES | 2017年 / 343卷

关键词：

Regenerative fuel cell; Degradation; Catalyst agglomeration; Electrode delamination; PEM WATER ELECTROLYSIS; DYNAMIC DRIVING CYCLE; GAS-DIFFUSION LAYER; PERFORMANCE DEGRADATION; CONTACT RESISTANCE; MECHANICAL DEGRADATION; MITIGATION STRATEGIES; STAINLESS-STEEL; BIPOLAR PLATE; MEMBRANE;

D O I：

10.1016/j.jpowsour.2017.01.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The present study emphasizes the possible modes of failure of a unitized regenerative fuel cell (URFC) when operated in fuel cell as well as in electrolysis mode at different temperatures viz. 30 degrees C and 60 degrees C. The carbon based catalyst (Pt/C) and diffusion layers are used to characterize the degradation of the URFCs. The electrolysis mode of operation is found to dominate the root cause of failure with increase in temperature. Agglomeration and loss of catalyst along with delamination of electrode from membrane are observed. Membrane degradation owing to it's structural as well as chemical damage is seen to be prominent at higher temperature. Characterization techniques such as SEM, TEM and ICP-AES confirm the study showcasing the effect.(C) 2017 Elsevier B.V. All rights reserved.

引用

页码：275 / 283

页数：9

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