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The Preparation and Characterization of Pt/Fe Electrocatalyst for Direct Methanol Oxidation

Published online by Cambridge University Press:  15 February 2011

Chaoying Ma ,
A. D. Kowalak  and
Changmo Sung
Chaoying Ma
Affiliation:
Chemistry Department, University of Massachusetts at Lowell, Lowell, MA 01854
A. D. Kowalak
Affiliation:
Chemistry Department, University of Massachusetts at Lowell, Lowell, MA 01854
Changmo Sung
Affiliation:
Center for Advanced Materials, University of Massachusetts at Lowell, Lowell, MA 01854
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Abstract

Pt/Fe electrocatalysts (Pt/Fe) supported on Vulcan XC-72 carbon black were prepared by chemical method. The formation of Pt/Fe clusters was confirmed by transmission electron microscopy (TEM) and energy dispersive x-ray spectrometry (EDXS). The electrochemical efficiency and durability of the catalysts for direct methanol oxidation were compared with the catalyst containing Pt only (Pt) under the same reaction conditions of 1 M CH3OH in 0.1 M H2SO4 electrolyte solution. The current density for the Pt/Fe is three times of that of the Pt catalyst. Effects of various factors on the behavior of the catalysts, such as reaction time during preparation, order of the addition of the chemicals into the reaction system, methanol concentration, activation per unit Pt, scan rate for cyclic voltammograph, were examined.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 368: Symposium T – Synthesis and Properties of Advanced Catalytic Materials , 1994 , 145
Copyright
Copyright © Materials Research Society 1995

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References

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