Journal
JOURNAL OF POWER SOURCES
Volume 195, Issue 12, Pages 3802-3805Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2009.12.115
Keywords
Direct methanol fuel cell (DMFC); Methanol electro-oxidation; Pt-CeO2/MWCNTs
Funding
- Scientific Research Foundation of Qufu Normal University
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Ceria (CeO2) as co-catalytic material with Pt on multi-walled carbon nanotubes (Pt-CeO2/MWCNT) is synthesized by a co-precipitation method. The physicochemical characterizations of the catalysts are carried out by using transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) techniques. Electrocatalytic activities of the catalysts for methanol oxidation is examined by cyclic voltammetry and chronoamperometry techniques and it is found that Pt-CeO2/MWCNT catalysts exhibited a better activity and stability than did the unmodified Pt/MWCNT catalyst. CO-stripping results indicate the facile removal of intermediate poisoning species CO in the presence of CeO2. which is helpful for CO and methanol electro-oxidation. (C) 2010 Elsevier B.V. All rights reserved.
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