Authors: RenBin Lin ShinMin Shih
Publish Date: 2005/12/13
Volume: 10, Issue: 4, Pages: 243-249
Abstract
The hydrogen oxidation reaction on Ptblack/Nafion electrode was investigated using a rotating disk electrode and cyclic voltammetry technique The voltammetric results demonstrated that the electrode can be prepared with good reproducibility and that Ptblack particles without direct contact with Nafion were still electrochemically active in taking part in the Hadsorption/desorption process For hydrogen oxidation the limiting current density was reduced by the presence of Nafion coating The H2 diffusion resistance in Nafion film was avoided when the film thickness was less than 02 μm for a Ptblack loading of 20 μg Moreover the uncertainties in the kinetic results were discussed
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