Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 38, Issue 25, Pages 11011-11016Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2013.02.086
Keywords
Proton exchange membrane fuel cells; Accelerating degradation technique; Durability; MEA degradation
Categories
Ask authors/readers for more resources
Durability is one of the major barriers to proton exchange membrane fuel cells (PEMFCs) being accepted as a commercially viable product. It is therefore important to understand the degradation phenomena of MEA (membrane electrode assembly) in PEMFCs and analyze degradation mechanisms. This study adopted the accelerating degradation technique to analyze durability of PTFE/Nafion MEA using the Taiwan HS-150 fuel cell tester and MEN Stack Durability Protocol developed by the Fuel Cell Technical Team (FCTT) of the FreedomCAR and Fuel Partnership. The experimental process for the MEA degradation contains dry/wet and load cycling. During durability test of the MEA, the polarization curve, cyclic voltammetry (CV), linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) are used for diagnosing state of the MEA. The experimental results show that failure of the proton exchange membrane is the decisive factor leading to the end-of-life of the MEA and the electrochemical reaction micro-structural damage of catalytic layer is the decisive factor of the performance degradation and stability deteriorates. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available