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- Title
Support Effects of Carbon on Pt Catalysts.
- Authors
Nakamura, Junji; Kondo, Takahiro
- Abstract
Experimental evidence for support effect of carbon are summarized for Pt or PtRu catalysts supported by carbon nanotubes and graphene as well as for model catalysts of Pt/HOPG (highly oriented pyrolytic graphite). The electronic modification of Pt catalysts by the support effect is explained by a π-d interaction at the interface between graphitic surface and Pt. The interface interaction is related to non-bonding localized states of carbon, which are observed by scanning tunneling spectroscopy near defects or the doped-nitrogen atom on HOPG. The localized states propagate to a few nanometer regions behaving as acid and basic sites.
- Subjects
PLATINUM catalysts; CARBON; SCANNING tunneling microscopy; NANOSTRUCTURED materials; GRAPHITE; PYROLYTIC graphite
- Publication
Topics in Catalysis, 2013, Vol 56, Issue 15-17, p1560
- ISSN
1022-5528
- Publication type
Article
- DOI
10.1007/s11244-013-0144-9