Morphological control of carbon carrier in Pt-carbon nanocomposites derived from photocatalytic reactions on titanium(IV) oxide powders

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

1 Scopus Citations
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Author(s)

  • Shigeru Ikeda
  • Sang-In Park
  • Yoshihiro Morita
  • Takashi Harada
  • Michio Matsumura

Detail(s)

Original languageEnglish
Pages (from-to)627-633
Journal / PublicationTopics in Catalysis
Volume52
Issue number6-7
Online published9 Apr 2009
Publication statusPublished - Jun 2009
Externally publishedYes

Abstract

Photodeposition of Pt nanoparticle and phenolic polymer on TiO2 in a deaerated aqueous system containing hexachloroplatinic acid and phenol were investigated. We observed that reductive deposition of Pt nanoparticles with electrons proceeded rapidly, while the oxidative deposition of a phenolic polymer with positive holes was relatively slow. The difference ensured the encapsulation of Pt nanoparticles between the polymer layer and TiO2. Carbonization of the polymer components followed by removing TiO2 resulted in the formation of two types of Pt-carbon nanocomposites with different morphologies of carbons, depending on photoirradiation duration. These composites exhibited high levels of catalytic activity and reusability for aqueous oxidation of 1-phenylethanol with molecular oxygen.

Research Area(s)

  • Aqueous oxidation, Heterogeneous catalysis, Molecular oxygen, Nanocomposite, Photocatalysis, Photodeposition, Porous carbon, Pt nanoparticle

Citation Format(s)

Morphological control of carbon carrier in Pt-carbon nanocomposites derived from photocatalytic reactions on titanium(IV) oxide powders. / Ng, Yun Hau; Ikeda, Shigeru; Park, Sang-In et al.
In: Topics in Catalysis, Vol. 52, No. 6-7, 06.2009, p. 627-633.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review