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XPS investigation of platinized carbon electrodes for the direct methanol air fuel cell

✍ Scribed by J.B. Goodenough; A. Hamnett; B.J. Kennedy; S.A. Weeks

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
538 KB
Volume
32
Category
Article
ISSN
0013-4686

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✦ Synopsis

High-activity platinized-carbon anodes for methanol oxidation have been prepared. XPS investigation of the electrodes showed the presence of both Pt" and oxidized Pt species. The enhanced activity of these electrodes, compared with Pt black, can be explained in terms of the unusual surface properties of very small Pt crystallites and of the strong metal-support interactions between the carbon substrate and Pt crystaltites. The role of the oxidized Pt species in promoting the oxidation of methanol is discussed.

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