The control of platinum impregnation by PZC alteration of oxides and carbon

被引：106

作者：

Hao, X ^{[1
]}

Quach, L ^{[1
]}

Korah, J ^{[1
]}

Spieker, WA ^{[1
]}

Regalbuto, JR ^{[1
]}

机构：

[1] Univ Illinois, Dept Chem Engn, Chicago, IL 60607 USA

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2004年 / 219卷 / 01期

基金：

美国国家科学基金会;

关键词：

catalyst preparation; impregnation; adsorption; carbon; platinum; point of zero charge; fuel cell electrocatalyst;

D O I：

10.1016/j.molcata.2004.04.026

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：

In this paper, we examine the influence of two methods of PZC alteration, ion-doping of oxides and oxidation of carbon, on the control of Pt uptake, using both anionic and cationic Pt complexes. The former method was found to be unsuccessful and the latter successful for 'engineering' the impregnation of catalyst support materials. We use the latter approach to suggest a simple, effective way to synthesize highly loaded, highly dispersed Pt/carbon materials that have applications as fuel cell electrocatalysts. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：97 / 107

页数：11

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