期刊
ELECTROCHIMICA ACTA
卷 54, 期 27, 页码 7042-7047出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2009.07.022
关键词
Electrospinning; Electrodeposition; Pt nanoparticles; Carbon nanofibers; Methanol
资金
- National Textile Center [ITA-08-07400]
- U.S. National Science Foundation [0833837]
- ACS Petroleum Research [47863-G10]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0833837] Funding Source: National Science Foundation
Pt/carbon composite nanofibers were prepared by electrodepositing Pt nanoparticles directly onto electrospun carbon nanofibers. The morphology and size of Pt nanoparticles were controlled by the electrodeposition time. The resulting Pt/carbon composite nanofibers were characterized by running cyclic voltammograms in 0.20M H2SO4 and 5.0mMK(4)[Fe(CN)(6)] + 0.10M KCl solutions. The electrocatalytic activities of Pt/carbon composite nanofibers were measured by the oxidation of methanol. Results show that Pt/carbon composite nanofibers possess the properties of high active surface area and fast electron transfer rate, which lead to a good performance towards the electrocatalytic oxidation of methanol. It is also found that the Pt/carbon nanofiber electrode with a Pt loading of 0.170mg cm(-2) has the highest activity. (c) 2009 Elsevier Ltd. All rights reserved.
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