Electrooxidation of methanol on carbon nanotubes supported Pt–Fe alloy electrode
2006; Elsevier BV; Volume: 8; Issue: 6 Linguagem: Inglês
10.1016/j.elecom.2006.04.005
ISSN1873-1902
AutoresJianbo Xu, Kaifeng Hua, Gengzhi Sun, Cheng Wang, Xiangyu Lv, Yujiang Wang,
Tópico(s)Electrochemical Analysis and Applications
ResumoThe synthesis and characterization of catalysts based on bimetallic materials, Pt–Fe supported on multi-walled carbon nanotubes (MWNTs) for methanol electrooxidation is reported here. The catalyst was prepared by a spray-cooling process and characterized by TEM, EDS, ICP and XRD. The electrocatalytic properties of the Pt–Fe/MWNTs electrode for methanol oxidation have been investigated by cyclic voltammetry and chronoamperometry. It presented higher electrocatalytic activity and stability than a comparative Pt/MWNTs catalyst. This may be attributed to the addition of Fe which leads to the small average particle size and high utilization of Pt in the Pt–Fe/MWNTs catalyst. The results imply that the Pt–Fe/MWNTs composite has good potential applications in fuel cells.
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