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Performance of a high temperature polymer electrolyte membrane water electrolyser

Lookup NU author(s): Dr Xu Wu, Emeritus Professor Keith Scott, Professor Suddhasatwa Basu

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Abstract

A high temperature polymer electrolyte membrane water electrolyser (PEMWE) was investigated at temperatures between 80 and 130 C and pressures between 0.5 and 4 bar. Nanometer size Ru0.7Ir0.3O2 and Pt/C were employed as anode and cathode catalysts respectively. The catalyst coated on membrane (CCM) method was used to fabricate the membrane electrode assemblies. The membrane, oxygen evolution catalysts and MEAs were characterized with SEM, XRD and TEM. The influence of high temperature and pressure was investigated using in situ electrochemical measurements. Increasing temperature and pressure produced higher current densities for oxygen evolution, and smaller terminal voltages. The high temperature PEMWE achieved a voltage of 1.51 V at a current density of 1 A cm(-2), at 130 degrees C and 4 bar pressure. (C) 2011 Elsevier B.V. All rights reserved.

Publication metadata

Author(s): Xu W, Scott K, Basu S

Publication type: Article

Publication status: Published

Journal: Journal of Power Sources

Year: 2011

Volume: 196

Issue: 21

Pages: 8918-8924

Print publication date: 01/11/2011

ISSN (print): 0378-7753

ISSN (electronic): 1873-2755

Publisher: Elsevier SA

URL: http://dx.doi.org/10.1016/j.jpowsour.2010.12.039

DOI: 10.1016/j.jpowsour.2010.12.039

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