Lookup NU author(s): Xu Wang,
Dr Eileen Yu,
Professor Keith Scott
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A direct methanol fuel cell using a mixture of O2 and CO2 at the cathode was evaluated using anion exchange materials and cathode catalysts of Pt and a non-Pt catalyst. The MEA based on non-noble metal catalyst Acta 4020 showed superior performance than Pt/C based MEA in terms of open circuit potential and power density in carbonate environment. The fuel cell performance was improved by applying anion exchange ionomer in the catalyst layer. A maximum power density of 4.5 mW cm–2 was achieved at 50 °C using 6.0 M methanol and 2.0 M K2CO3.
Author(s): Wang X, Yu EH, Horsfall J, Scott K
Publication type: Article
Publication status: Published
Journal: Fuel Cells
Print publication date: 01/10/2013
Online publication date: 26/07/2013
Acceptance date: 01/07/2013
ISSN (print): 1615-6846
ISSN (electronic): 1615-6854
Publisher: Wiley - V C H Verlag GmbH & Co. KGaA
Notes: This study targeted the premier challenge in direct alkaline fuel cells: slow carbonation limiting fuel cell lifetime. By applying novel commercial non-Pt catalyst and the novel anion exchange polymer developed in our group, the feasibility of running alkaline fuel cells with carbonate and CO2 is a significant development and improvement for this type of fuel cells. It also provided possibility of utilisation of CO2 by electrochemical oxidation. Two grants obtained based on this concept: NERC catalyst grant for Resource recovery from waste (NE/K015788/1), and EPSRC CO2Chem Network Seedcorn grant.
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