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Lookup NU author(s): Professor Ulrich Stimming
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This paper demonstrates a novel polymer electrolyte membrane (PEM) based methanol electrolyzer stack with a catalyzed membrane for hydrogen production. The physical and electrochemical properties of the catalyzed membrane, single cell and stack are examined using various characterization techniques, such as X-ray diffraction, scanning electron microscopy with EDX and polarization studies. The results demonstrate that the with Pt-catalyzed membrane electrode assembly (MEA) exhibits significantly better performance than a normal MEA. The developed electrolyzer stack produces 102 L h−1of 99% pure hydrogen without CO and CO2. The excellent stability of the PEM methanol electrolyzer system is demonstrated by running the stack for 2500 h of intermittent operation with constant current density.
Author(s): Pethaiah SS, Sasikumar G, Chan SH, Stimming U
Publication type: Article
Publication status: Published
Journal: Journal of Power Sources
Print publication date: 15/05/2014
Online publication date: 31/12/2013
Acceptance date: 19/12/2013
ISSN (print): 0378-7753
ISSN (electronic): 1873-2755
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