Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 35, Issue 21, Pages 12029-12037Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2010.08.055
Keywords
Water electrolyser; Polymer electrolyte membrane; Catalyst coated membrane; Nafion ionomer; Oxygen evolution reaction
Categories
Funding
- Hydrogen Electrolyser and Fuel Cell [EP/H007962/1]
- UK/China Scholarship for Excellence Scheme
- Engineering and Physical Sciences Research Council [EP/H007962/1] Funding Source: researchfish
- EPSRC [EP/H007962/1] Funding Source: UKRI
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In this study, the effects of Nafion ionomer content in membrane electrode assemblies (MEAs) of polymer electrolyte membrane (PEM) water electrolyser were discussed. The MEAs were prepared with a catalyst coated membrane (CCM) method. The catalysts inks with Nafion ionomer could form uniform coatings deposited on the membrane surfaces. SEM and area EDX mapping demonstrated that anode catalyst coating was uniformly distributed, with a microporous structure. The contents of Nafion ionomer were optimized to 25% for the anode and 20% for cathode. A current density of 1 A cm(-2) was achieved at terminal voltage 1.586 V at 80 degrees C in a PEMWE single cell, with Nafion 117, Pt/C as cathode, and Ru0.7Ir0.3O2 as anode. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
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