A mesoporous Pt/TiO2 nanoarchitecture with catalytic and photocatalytic functions

Xinchen Wang; Jimmy C. Yu; Ho Yin Yip; Ling Wu; Po Keung Wong; Suk Yin Lai

doi:10.1002/chem.200401248

A mesoporous Pt/TiO₂ nanoarchitecture with catalytic and photocatalytic functions

Xinchen Wang, Jimmy C. Yu^*, Ho Yin Yip, Ling Wu, Po Keung Wong, Suk Yin Lai

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

149 Citations (Scopus)

Abstract

A novel metal/semiconductor nanocomposite with catalytic and photocatalytic functions has been prepared. The new material consists of highly dispersed platinum (Pt) nanoparticles embedded in a cubic mesoporous nanocrystalline anatase (meso-nc-TiO₂) thin film. The porous thin film possesses a narrow pore-size distribution and a large surface area. The diameter of the Pt cluster can be controlled to below 5 nm, and the high dispersion of these clusters gives rise to catalytic activity for the oxidation of carbon monoxide, an important reaction for automobile exhaust treatment. This novel ordered mesoporous Pt/ TiO₂ nanoarchitecture is also a promising photochemical material, as demonstrated by the photo-driven killing of Micrococcus lylae cells on the film.

Original language	English
Pages (from-to)	2997-3004
Number of pages	8
Journal	Chemistry - A European Journal
Volume	11
Issue number	10
DOIs	https://doi.org/10.1002/chem.200401248
Publication status	Published - 6 May 2005

Scopus Subject Areas

Catalysis
Organic Chemistry

User-Defined Keywords

Heterogeneous catalysis
Mesoporous materials
Photocatalysis
Platinum
Thin films

Access to Document

10.1002/chem.200401248

Cite this

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title = "A mesoporous Pt/TiO2 nanoarchitecture with catalytic and photocatalytic functions",

abstract = "A novel metal/semiconductor nanocomposite with catalytic and photocatalytic functions has been prepared. The new material consists of highly dispersed platinum (Pt) nanoparticles embedded in a cubic mesoporous nanocrystalline anatase (meso-nc-TiO2) thin film. The porous thin film possesses a narrow pore-size distribution and a large surface area. The diameter of the Pt cluster can be controlled to below 5 nm, and the high dispersion of these clusters gives rise to catalytic activity for the oxidation of carbon monoxide, an important reaction for automobile exhaust treatment. This novel ordered mesoporous Pt/ TiO2 nanoarchitecture is also a promising photochemical material, as demonstrated by the photo-driven killing of Micrococcus lylae cells on the film.",

keywords = "Heterogeneous catalysis, Mesoporous materials, Photocatalysis, Platinum, Thin films",

author = "Xinchen Wang and Yu, {Jimmy C.} and Yip, {Ho Yin} and Ling Wu and Wong, {Po Keung} and Lai, {Suk Yin}",

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T1 - A mesoporous Pt/TiO2 nanoarchitecture with catalytic and photocatalytic functions

AU - Wang, Xinchen

AU - Yu, Jimmy C.

AU - Yip, Ho Yin

AU - Wu, Ling

AU - Wong, Po Keung

AU - Lai, Suk Yin

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N2 - A novel metal/semiconductor nanocomposite with catalytic and photocatalytic functions has been prepared. The new material consists of highly dispersed platinum (Pt) nanoparticles embedded in a cubic mesoporous nanocrystalline anatase (meso-nc-TiO2) thin film. The porous thin film possesses a narrow pore-size distribution and a large surface area. The diameter of the Pt cluster can be controlled to below 5 nm, and the high dispersion of these clusters gives rise to catalytic activity for the oxidation of carbon monoxide, an important reaction for automobile exhaust treatment. This novel ordered mesoporous Pt/ TiO2 nanoarchitecture is also a promising photochemical material, as demonstrated by the photo-driven killing of Micrococcus lylae cells on the film.

AB - A novel metal/semiconductor nanocomposite with catalytic and photocatalytic functions has been prepared. The new material consists of highly dispersed platinum (Pt) nanoparticles embedded in a cubic mesoporous nanocrystalline anatase (meso-nc-TiO2) thin film. The porous thin film possesses a narrow pore-size distribution and a large surface area. The diameter of the Pt cluster can be controlled to below 5 nm, and the high dispersion of these clusters gives rise to catalytic activity for the oxidation of carbon monoxide, an important reaction for automobile exhaust treatment. This novel ordered mesoporous Pt/ TiO2 nanoarchitecture is also a promising photochemical material, as demonstrated by the photo-driven killing of Micrococcus lylae cells on the film.

KW - Heterogeneous catalysis

KW - Mesoporous materials

KW - Photocatalysis

KW - Platinum

KW - Thin films

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