Fabrication of hollow carbon nanospheres encapsulating platinum nanoparticles using a photocatalytic reaction

Yun Hau Ng; Shigeru Ikeda; Takashi Harada; Suguru Higashida; Takao Sakata; Hirotaro Mori; Michio Matsumura

doi:10.1002/adma.200601978

Fabrication of hollow carbon nanospheres encapsulating platinum nanoparticles using a photocatalytic reaction

Yun Hau Ng^*, Shigeru Ikeda, Takashi Harada, Suguru Higashida, Takao Sakata, Hirotaro Mori, Michio Matsumura

^*Corresponding author for this work

Chemical Engineering

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130 Scopus citations

Abstract

Fabrication of hollow carbon nanospheres encapsulating platinum nanoparticles using a photocatalytic reaction was investigated. Photoradiation was performed in an air-free closed gas circulation system with a Pyrex reaction cell and a suspension containing the TiO₂ powder, phenol and a small portion of hexachloroplatinic acid was photoirradiated with high pressure mercury lamp. Fourier transform infrared (FTIR) analysis of the TiO₂ particles were recovered after 2.5 hours of photoradiation. Various absorption bands were obtained at 1160 and 1230 cm^-1 that indicate C-H bending and C-OH stretching vibrations. The preparation technique provides a new imprinting method that can be used to synthesize any desired nanostructures using TiO₂ photocatalysts. It was observed that the wall structure of nanoparticle platinum provides channels for the species present outside the sphere.

Original language	English (US)
Pages (from-to)	597-601
Number of pages	5
Journal	Advanced Materials
Volume	19
Issue number	4
DOIs	https://doi.org/10.1002/adma.200601978
State	Published - Feb 19 2007

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.200601978

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title = "Fabrication of hollow carbon nanospheres encapsulating platinum nanoparticles using a photocatalytic reaction",

abstract = "Fabrication of hollow carbon nanospheres encapsulating platinum nanoparticles using a photocatalytic reaction was investigated. Photoradiation was performed in an air-free closed gas circulation system with a Pyrex reaction cell and a suspension containing the TiO2 powder, phenol and a small portion of hexachloroplatinic acid was photoirradiated with high pressure mercury lamp. Fourier transform infrared (FTIR) analysis of the TiO2 particles were recovered after 2.5 hours of photoradiation. Various absorption bands were obtained at 1160 and 1230 cm-1 that indicate C-H bending and C-OH stretching vibrations. The preparation technique provides a new imprinting method that can be used to synthesize any desired nanostructures using TiO2 photocatalysts. It was observed that the wall structure of nanoparticle platinum provides channels for the species present outside the sphere.",

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T1 - Fabrication of hollow carbon nanospheres encapsulating platinum nanoparticles using a photocatalytic reaction

AU - Ng, Yun Hau

AU - Ikeda, Shigeru

AU - Harada, Takashi

AU - Higashida, Suguru

AU - Sakata, Takao

AU - Mori, Hirotaro

AU - Matsumura, Michio

PY - 2007/2/19

Y1 - 2007/2/19

N2 - Fabrication of hollow carbon nanospheres encapsulating platinum nanoparticles using a photocatalytic reaction was investigated. Photoradiation was performed in an air-free closed gas circulation system with a Pyrex reaction cell and a suspension containing the TiO2 powder, phenol and a small portion of hexachloroplatinic acid was photoirradiated with high pressure mercury lamp. Fourier transform infrared (FTIR) analysis of the TiO2 particles were recovered after 2.5 hours of photoradiation. Various absorption bands were obtained at 1160 and 1230 cm-1 that indicate C-H bending and C-OH stretching vibrations. The preparation technique provides a new imprinting method that can be used to synthesize any desired nanostructures using TiO2 photocatalysts. It was observed that the wall structure of nanoparticle platinum provides channels for the species present outside the sphere.

AB - Fabrication of hollow carbon nanospheres encapsulating platinum nanoparticles using a photocatalytic reaction was investigated. Photoradiation was performed in an air-free closed gas circulation system with a Pyrex reaction cell and a suspension containing the TiO2 powder, phenol and a small portion of hexachloroplatinic acid was photoirradiated with high pressure mercury lamp. Fourier transform infrared (FTIR) analysis of the TiO2 particles were recovered after 2.5 hours of photoradiation. Various absorption bands were obtained at 1160 and 1230 cm-1 that indicate C-H bending and C-OH stretching vibrations. The preparation technique provides a new imprinting method that can be used to synthesize any desired nanostructures using TiO2 photocatalysts. It was observed that the wall structure of nanoparticle platinum provides channels for the species present outside the sphere.

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Fabrication of hollow carbon nanospheres encapsulating platinum nanoparticles using a photocatalytic reaction

Abstract

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