The role of nitrogen in a carbon support on the increased activity and stability of a Pt catalyst in electrochemical hydrogen oxidation
SCIE
SCOPUS
- Title
- The role of nitrogen in a carbon support on the increased activity and stability of a Pt catalyst in electrochemical hydrogen oxidation
- Authors
- Bae, G; Youn, DH; Han, S; Lee, JS
- Date Issued
- 2013-01
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- Nitrogen-containing carbon materials were prepared by acetonitrile pyrolysis on carbon black and used as a support for a Pt catalyst. The Pt particles on N-containing carbon exhibited increased activity and stability in electrochemical hydrogen oxidation relative to Pt on pristine carbon black. The N-doped carbon had a graphitic structure and contained pyridinic and quaternary nitrogen species. The Pt nanoparticles were better-dispersed because of increased hydrophilicity induced by the nitrogen species. The Pt/N-containing carbon showed higher stability in a potential cycling test than Pt/C, because of an increased metal-support interaction. Using XPS and EELS mapping, we demonstrated that the metal-support interaction became stronger and more specific by adding nitrogen into carbon. (C) 2012 Elsevier Ltd. All rights reserved.
- Keywords
- FUEL-CELL CONDITIONS; DOPED CARBON; METHANOL OXIDATION; NANOTUBES; NANOPARTICLES; REDUCTION; ELECTROCATALYSIS; ELECTROOXIDATION; ADSORPTION; ELECTRODES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15444
- DOI
- 10.1016/J.CARBON.2012.08.054
- ISSN
- 0008-6223
- Article Type
- Article
- Citation
- CARBON, vol. 51, page. 274 - 281, 2013-01
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- There are no files associated with this item.
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