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Lookup NU author(s): Emeritus Professor Keith Scott, Dr Wathiq Taama, Dr Panagiotis Argyropoulos
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The direct methanol fuel cell presents several interesting scientific and engineering problems. There are many engineering issues regarding eventual application concerning cell materials, feed and oxidant requirements, fuel utilization and recovery, scale up, etc. This paper looks at several of these issues starting from the point of current, typical, cell performance. A small-scale flow cell and a large scale cell, both with a parallel channel flow bed design, are used. The structure of the direct methanol fuel cell (DMFC) is a composite of two porous electrocatalytic electrodes; Pt-Ru-C catalyst anode and Pt-C catalyst cathode, on either side of a solid polymer electrolyte (SPE) membrane. Flow visualization on small scale and intermediate scale (100 cm2) cells has been used in the design of a new large-scale cell of 225 cm2 active area. We discuss several important engineering factors in the successful design of large scale DMFCs including the use of vapour and liquid feeds, thermal management, gas management, methanol fuel management, hydrodynamics and mass transport.
Author(s): Scott K, Taama WM, Argyropoulos P
Publication type: Article
Publication status: Published
Journal: Journal of Power Sources
Year: 1999
Volume: 79
Issue: 1
Pages: 43-59
Print publication date: 01/05/1999
ISSN (print): 0378-7753
ISSN (electronic): 1873-2755
Publisher: Elsevier Science S.A
URL: http://dx.doi.org/10.1016/S0378-7753(98)00198-0
DOI: 10.1016/S0378-7753(98)00198-0
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