Formation of metallic Ni nanoparticles on titania surfaces by chemical vapor reductive deposition method

Masaki Yoshinaga; Hideyuki Takahashi; Katsutoshi Yamamoto; Atsushi Muramatsu; Takeshi Morikawa

doi:10.1016/j.jcis.2007.01.051

Formation of metallic Ni nanoparticles on titania surfaces by chemical vapor reductive deposition method

Masaki Yoshinaga, Hideyuki Takahashi, Katsutoshi Yamamoto, Atsushi Muramatsu, Takeshi Morikawa

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

Metallic Ni nanoparticles were successfully prepared on the surface of titania thin film substrate by a novel method, named as chemical vapor reductive deposition (CVRD) method. The growth of the nanoparticles was based on the specific adsorption and heterogeneous nucleation on the surface of substrate, not via vapor-phase formation and subsequent sedimentation. The nanoparticle size was found to be well controllable between 10 and 30 nm by the preparation time and vapor pressure of metal complex precursor. ESCA and electron diffraction results clearly demonstrated Ni nanoparticles as metallic. Titania thin film with metallic Ni nanoparticles on its surface showed high efficiency in their photocatalysis of hydrogen evolution from decomposition of ethanol.

Original language	English
Pages (from-to)	149-154
Number of pages	6
Journal	Journal of Colloid And Interface Science
Volume	309
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2007.01.051
Publication status	Published - 2007 May 1

Keywords

Ethanol decomposition
Growth control
Heteronucleation
High dispersibility
Hydrogen
Ni nanoparticles
Photocatalysis
Titania thin films

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

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10.1016/j.jcis.2007.01.051

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abstract = "Metallic Ni nanoparticles were successfully prepared on the surface of titania thin film substrate by a novel method, named as chemical vapor reductive deposition (CVRD) method. The growth of the nanoparticles was based on the specific adsorption and heterogeneous nucleation on the surface of substrate, not via vapor-phase formation and subsequent sedimentation. The nanoparticle size was found to be well controllable between 10 and 30 nm by the preparation time and vapor pressure of metal complex precursor. ESCA and electron diffraction results clearly demonstrated Ni nanoparticles as metallic. Titania thin film with metallic Ni nanoparticles on its surface showed high efficiency in their photocatalysis of hydrogen evolution from decomposition of ethanol.",

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AU - Yoshinaga, Masaki

AU - Takahashi, Hideyuki

AU - Yamamoto, Katsutoshi

AU - Muramatsu, Atsushi

AU - Morikawa, Takeshi

PY - 2007/5/1

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KW - Ethanol decomposition

KW - Growth control

KW - Heteronucleation

KW - High dispersibility

KW - Hydrogen

KW - Ni nanoparticles

KW - Photocatalysis

KW - Titania thin films

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Formation of metallic Ni nanoparticles on titania surfaces by chemical vapor reductive deposition method

Abstract

Keywords

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