Journal
ELECTROCHIMICA ACTA
Volume 139, Issue -, Pages 21-28Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.07.002
Keywords
proton conducting membrane electrolyte; fuel cells; electrocatalysts; catalyst support materials
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Funding
- European Union [309741]
- Danish DFF [10-081337]
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In this work, corrosion resistant TiO2@C powder was tested as possible alternative to standard carbon black supports for polymer electrolyte membrane fuel cells. We separately prepared a stock solution of well-defined Pt nanoparticles and different support materials, and thereafter supported the NPs on the respective supports. As result we obtained high Pt dispersion on TiO2@C supports comparable to conventional high surface area Pt/C catalysts. Accelerated stress tests were carried out in accordance with the Fuel Cell Commercialization Conference of Japan recommendations. The tests demonstrated improved corrosion resistance of Pt/TiO2@C (as compared to Pt/C) when probing start/stop or mixed load cycle and start/stop conditions, whereas similar stability was observed when probing load cycle conditions only. (C) 2014 Elsevier Ltd. All rights reserved.
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