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A polymethacrylate-based quaternary ammonium OH- ionomer binder for non-precious metal alkaline anion exchange membrane water electrolysers

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

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Abstract

In order to develop the alkaline anion exchange membrane water electrolysers (AAEMWE), a quaternary OH- conductive ionomer binder based on polymethacrylate was synthesized by copolymerization of three kinds of methacrylate monomers, which was followed by quaternization. Tensile strength of this ionomer membrane was 7.629 MPa, with Young's modulus 0.229 GPa and elongation 45.8%. The conductivity of this ionomer could reach 0.059 S cm(-1) at 50 degrees C. With this ionomer in catalyst layers of an AAEMWE, the voltage of 1.9 V gave a current density of 100 mA cm(-2). Satisfactory stability of the membrane electrode assembly was observed from chronocoulometry. (C) 2012 Elsevier B.V. All rights reserved.

Publication metadata

Author(s): Wu X, Scott K

Publication type: Article

Publication status: Published

Journal: Journal of Power Sources

Year: 2012

Volume: 214

Pages: 124-129

Print publication date: 15/09/2012

ISSN (print): 0378-7753

ISSN (electronic): 1873-2755

Publisher: Elsevier BV

URL: http://dx.doi.org/10.1016/j.jpowsour.2012.03.069

DOI: 10.1016/j.jpowsour.2012.03.069

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