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- Title
Substitute of Expensive Pt with Improved Electrocatalytic Performance and Higher Resistance to CO Poisoning for Methanol Oxidation: the Case of Synergistic Pt-Co<sub>3</sub>O<sub>4</sub> Nanocomposite.
- Authors
Hongxiao Zhao; Zhi Zheng; Jing Li; Huimin Jia; Ka-wai Wong; Yidong Zhang; Woon Ming Lau
- Abstract
In this paper, Pt-Co3O4 nanocomposite was synthesized by a sol-gel process combined with electrodeposition method. Its electrocatalytic activity towards methanol oxidation was investigated at room temperature using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and current density-time curve. It is found that the resultant Pt-Co3O4 catalysts with minute amount of Pt exhibite attractive electrocatalytic activity for methanol oxidation reaction (MOR) but with a high resistance CO poisoning due to the synergistic effects from Pt and Co3O4. Together with the low manufacturing cost of Co3O4, the reported nanostructured Pt-Co3O4 catalyst is expected to be a promising electrode material for direct methanol fuel cells (DMFC).
- Subjects
ELECTROCATALYSIS; CARBON monoxide; CATALYST poisoning; PLATINUM catalysts; OXIDATION of methanol; COBALT oxides; NANOCOMPOSITE materials
- Publication
Nano-Micro Letters, 2013, Vol 5, Issue 4, p296
- ISSN
2311-6706
- Publication type
Article
- DOI
10.1007/BF03353761