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Structural effect of PtRu-WO3 alloy nanostructures on methanol electrooxidation
- Issue Date
- Feb-2006
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- direct methanol fuel cell; methanol electrooxidation; platinum catalyst; platinum and ruthenium alloy; nanostructure; grazing incidence X-ray diffraction
- Citation
- ELECTROCHEMISTRY COMMUNICATIONS, v.8, no.2, pp.359 - 363
- Journal Title
- ELECTROCHEMISTRY COMMUNICATIONS
- Volume
- 8
- Number
- 2
- Start Page
- 359
- End Page
- 363
- ISSN
- 1388-2481
- Abstract
- PtRu-WO3 alloy thin-film nanostructures for use as direct methanol fuel cells have been fabricated by co-sputtering for 20 and 40 at.% Ru. The structural and electrochemical properties of these nanostructures were characterized using transmission electron microscopy, X-ray diffraction, and electrochemical measurements. The nanostructures consist of PtRu alloy nanoparticles (4 nm in size) dispersed in the WO3 matrix. For 20 at.% Ru, the alloy nanoparticles are face-centered cubic (fcc), but for 40 at.% Ru, the nanoparticles separate into Pt-rich fcc and Ru-rich hexagonal-close packed (hcp) phases. (c) 2005 Elsevier B.V. All rights reserved.
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Related Researcher
- PARK, KYUNG WON
- College of Engineering (Department of Chemical)