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Development of a novel cost effective methanol electrolyser stack with Pt-catalyzed membrane

Lookup NU author(s): Professor Ulrich Stimming

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Abstract

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.

Publication metadata

Author(s): Pethaiah SS, Sasikumar G, Chan SH, Stimming U

Publication type: Article

Publication status: Published

Journal: Journal of Power Sources

Year: 2014

Volume: 254

Pages: 161-167

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

Publisher: Elselvier

URL: http://dx.doi.org/10.1016/j.jpowsour.2013.12.103

DOI: 10.1016/j.jpowsour.2013.12.103

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