Pt decorated amorphous RuIr alloys as high efficiency electrocatalyst for methanol oxidation
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Date
2012
Journal Title
Journal ISSN
Volume Title
Publisher
The Electrochemical Society
Abstract
This study focuses primarily on improving the utilization and
activity of anodic catalysts for methanol electro-oxidation. The
Direct Methanol Fuel Cell (DMFC) anodic catalyst, a carbon
supported Pt decorated amorphous RuIr nanoparticles catalyst
(Pt@RuIr/C) was prepared by a two-step reduction method. The
structure of Pt@RuIr/C nanoparticles was confirmed by
Transmission Electron Microscopy (TEM) and X-ray Diffraction
(XRD). The Pt@RuIr electrocatalysts exhibited good uniformity in
distribution. Cyclic Voltammetry experiments showed that under
the same quality of noble-metal, the Pt@RuIr/C catalyst had higher
activity than the PtRuIr/C catalyst for methanol oxidation. It was
also shown that the as-prepared structure of the Pt decorated
amorphous RuIr alloys could obviously decrease the usage of
noble-metal and enhance its catalytic activity at the same time.
Description
Keywords
Anodic catalyst, Methanol electro-oxidation, Reduction method, Transmission Electron Microscopy (TEM), X-ray Diffraction (XRD)
Citation
Ma, Y.J. et al. (2012). Pt decorated amorphous RuIr alloys as high efficiency electrocatalyst for methanol oxidation. ECS Transactions, 50(2): 1943 – 1950