期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 351, 期 2, 页码 365-373出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2010.07.068
关键词
Platinum; Ruthenium; Template synthesis; Silica nanoparticle; Electrocatalyst; Methanol oxidation
资金
- Department of Energy Office of Science [DE-FG02-06ER46292]
- National Science Foundation [CHE-0616878]
- ND-EPSCoR [UND0012419]
- EPSCoR
- Office Of The Director [0814442] Funding Source: National Science Foundation
A simple method was developed for the template synthesis of silica-supported Pt and bimetallic Pt-Ru nanocatalysts. The synthesis used amine-functionalized silica nanoparticles as both template and support for the formation of metal nanoclusters with a precise composition, narrow size distribution, uniform shape and close spatial association. The nanocatalysts were compared with a commercial Pt-C catalyst used in fuel cell applications. Electrochemical measurements of methanol oxidation demonstrated higher catalytic activity for silica-supported Pt nanocatalysts and a reduced CO poisoning effect from co-templating of Pt and Ru. (C) 2010 Elsevier Inc. All rights reserved.
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