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Methanol electrooxidation of Pt catalyst on titanium nitride nanostructured support
- Authors
- Lee, Jong-Min; Han, Sang-Beom; Song, You-Jung; Kim, Jy-Yeon; Roh, Bumwook; Hwang, Inchul; Choi, Woojin; Park, Kyung-Won
- Issue Date
- 26-Feb-2010
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Nanostructured support; Titanium nitride; Methanol electrooxidation; Direct methanol fuel cells
- Citation
- APPLIED CATALYSIS A-GENERAL, v.375, no.1, pp.149 - 155
- Journal Title
- APPLIED CATALYSIS A-GENERAL
- Volume
- 375
- Number
- 1
- Start Page
- 149
- End Page
- 155
- ISSN
- 0926-860X
- Abstract
- We report nanostructured supports prepared by heat treatment of TiO(2) nanoparticles at 700, 800, or 900 degrees C under ammonia atmosphere. From X-ray diffraction analysis, it is found that the phase transformation of the supports from antase and rutile TiO(2), TiO to TiN (TiO(2) heated at 900 degrees C, TiO(2)-900) is observed. In particular, the Pt on TiO(2)-900 (Pt/TiO(2)-900) exhibits such an excellent catalytic activity toward methanol electrooxidation compared to the Pt on Vulcan XC-72. It is likely that enhanced catalytic properties of the Pt/TiO(2)-900 may be attributed to stability of nitride support and interaction between Pt catalyst and nitride support, which are confirmed by cycling test of supports and X-ray photoelectron spectra of Pt catalysts. (C) 2010 Elsevier B.V. All rights reserved.
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Related Researcher
- Choi, Woo Jin
- College of Engineering (School of Electrical Engineering)