Electrochemical titration of hydrogen adsorbed on supported platinum catalysts

被引：3
|
作者：
Paseka, Ivo [1 ]
机构：
[1] Acad Sci Czech Republic, Inst Inorgan Chem, CZ-25068 Rez, Czech Republic
来源：
APPLIED CATALYSIS A-GENERAL | 2007年 / 329卷
关键词：
platinum; hydrogen adsorption; specific surface area; supported platinum catalysts;
D O I：
10.1016/j.apcata.2007.07.003
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A method for the surface area determination of platinum on 5% Pt/Al2O3 catalysts by electrochemically generated oxygen has been tested. This method is based on the oxidation of adsorbed hydrogen on a platinum surface area by oxygen that is generated electrochemically. The course of the titration was followed by measurement the potential of a catalyst suspended in a sulphuric acid solution. The applicability and the accuracy of this method were tested by a measurement of platinum particle sizes using XRD and electron microscopy. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：161 / 163
页数：3
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