Comparisons of formic acid oxidation at supported Pt catalyst and at low-index Pt single crystal electrodes in sulfuric acid solution

The oxidation of formic acid was studied at supported Pt catalyst (47.5 wt%. Pt) and a low-index single crystal electrodes in sulfuric acid. The supported Pt catalyst was characterized by the TEM and HRTEM techniques. The mean Pt particle diameter, calculated from electrochemical measurements fits w...

Full description

Saved in:

Bibliographic Details
Published in:	Journal of the Serbian Chemical Society Vol. 68; no. 11; pp. 849 - 857
Main Authors:	Tripković Amalija V., Popović Ksenija Đ., Lović Jelena D.
Format:	Journal Article
Language:	English
Published:	Serbian Chemical Society 01-01-2003
Subjects:	formic acid oxidation particle size pt single crystals supported pt catalyst surface distribution of crystallographic sites
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	The oxidation of formic acid was studied at supported Pt catalyst (47.5 wt%. Pt) and a low-index single crystal electrodes in sulfuric acid. The supported Pt catalyst was characterized by the TEM and HRTEM techniques. The mean Pt particle diameter, calculated from electrochemical measurements fits well with Pt particle size distribution determined by HRTEM. For the mean particle diameter the surface averaged distribution of low-index single crystal facets was established. Comparison of the activities obtained at Pt supported catalyst and low-index Pt single crystal electrodes revealed that Pt(111) plane is the most active in the potential region relevant for fuel cell applications.
ISSN:	0352-5139 1820-7421
DOI:	10.2298/JSC0311849T