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

页码：161 / 163

页数：3

共 50 条

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