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Lookup NU author(s): Taiwo Alaje,
Emeritus Professor Keith Scott
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The cost of the catalysts used in the direct methanol fuel cell poses a challenge to its widespread use as an energy efficient and environment friendly fuel conversion technology. In this study, two types of highly ordered mesoporous carbon CMK-8 (I and II) with high surface area and 3-D bicontinuous interpenetrating channels were synthesized and deposited with Pt-Ru nanoparticles using the sodium borohydride reduction method. The electrocatalytic capabilities for methanol oxidation were investigated using cyclic voltammetry and chronoamperometry, and the results were compared with that of Pt-Ru deposited on Vulcan XC-72 using the same preparation method as well as with commercial Pt-Ru/C (E-TEK) catalyst. Pt-Ru/CMK-8-I synthesized by the method developed in this work revealed an outstanding specific mass activity (487.9 mA/mg) and superior stability compared with the other supports, thus substantiating its potential to reduce the costs of DMFC catalysts.
Author(s): Maiyalagan T, Alaje TO, Scott K
Publication type: Article
Publication status: Published
Journal: Journal of Physical Chemistry Part C: Nanomaterials, Interfaces and Hard Matter
Print publication date: 16/12/2011
ISSN (print): 1932-7447
ISSN (electronic): 1932-7455
Publisher: American Chemical Society
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