Next Article in Journal
Extraction of Gold(III) from Hydrochloric Acid Solutions with a PVC-based Polymer Inclusion Membrane (PIM) Containing Cyphos® IL 104
Next Article in Special Issue
NMR Studies of Solvent-Free Ceramic Composite Polymer Electrolytes—A Brief Review
Previous Article in Journal / Special Issue
Characterization of Polyethylene-Graft-Sulfonated Polyarylsulfone Proton Exchange Membranes for Direct Methanol Fuel Cell Applications
Article Menu

Export Article

Open AccessArticle
Membranes 2015, 5(4), 888-902; doi:10.3390/membranes5040888

The Effect of Platinum Electrocatalyst on Membrane Degradation in Polymer Electrolyte Fuel Cells

Institute of Chemical Engineering and Environmental Technology, NAWI Graz, Graz University of Technology, Inffeldgasse 25C, Graz 8010, Austria
*
Authors to whom correspondence should be addressed.
Academic Editor: Bruno Scrosati
Received: 30 September 2015 / Accepted: 1 December 2015 / Published: 8 December 2015
(This article belongs to the Special Issue Membranes for Electrochemical Energy Applications 2015)
View Full-Text   |   Download PDF [466 KB, uploaded 8 December 2015]   |  

Abstract

Membrane degradation is a severe factor limiting the lifetime of polymer electrolyte fuel cells. Therefore, obtaining a deeper knowledge is fundamental in order to establish fuel cells as competitive product. A segmented single cell was operated under open circuit voltage with alternating relative humidity. The influence of the catalyst layer on membrane degradation was evaluated by measuring a membrane without electrodes and a membrane-electrode-assembly under identical conditions. After 100 h of accelerated stress testing the proton conductivity of membrane samples near the anode and cathode was investigated by means of ex situ electrochemical impedance spectroscopy. The membrane sample near the cathode inlet exhibited twofold lower membrane resistance and a resulting twofold higher proton conductivity than the membrane sample near the anode inlet. The results from the fluoride ion analysis have shown that the presence of platinum reduces the fluoride emission rate; which supports conclusions drawn from the literature. View Full-Text
Keywords: polymer electrolyte fuel cell; membrane degradation; fluoride emission rate; segmented cell; OCV conditions; relative humidity cycling; membrane resistance; proton conductivity polymer electrolyte fuel cell; membrane degradation; fluoride emission rate; segmented cell; OCV conditions; relative humidity cycling; membrane resistance; proton conductivity
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Bodner, M.; Cermenek, B.; Rami, M.; Hacker, V. The Effect of Platinum Electrocatalyst on Membrane Degradation in Polymer Electrolyte Fuel Cells. Membranes 2015, 5, 888-902.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Membranes EISSN 2077-0375 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top