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Evaluation of new ion exchange membranes for direct borohydride fuel cells

Lookup NU author(s): Dr Hua Cheng, Emeritus Professor Keith Scott

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Abstract

Several radiation grafted ion exchange membranes were prepared and evaluated in half-cells and direct borohydride fuel cells (DBFC) using voltammetric and steady-state polarisation techniques. The peak power density of 112 mW cm-2 was achieved in a DBFC with an ETFE-g-PSSA membrane using a solution of 1.32 M sodium borohydride and 2.5 M sodium hydroxide, 1 bar oxygen at 85 °C. The chemical and mechanical stabilities of the membranes were tested under various conditions. The membrane performance was compared to that obtained with the benchmark Nafion® 117 membrane. The results are discussed based on the electrical, chemical, structural and mechanical properties of the membranes. © 2006 Elsevier B.V. All rights reserved.

Publication metadata

Author(s): Cheng H, Scott K, Lovell KV, Horsfall JA, Waring SC

Publication type: Article

Publication status: Published

Journal: Journal of Membrane Science

Year: 2007

Volume: 288

Issue: 1-2

Pages: 168-174

ISSN (print): 0376-7388

ISSN (electronic): 1873-3123

Publisher: Elsevier BV

URL: http://dx.doi.org/10.1016/j.memsci.2006.11.014

DOI: 10.1016/j.memsci.2006.11.014

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