Sonochemically synthesized core-shell structured Au-Pd nanoparticles supported on γ-Fe2O3 particles

Hiroaki Nitani; Masato Yuya; Takahiro Ono; Takashi Nakagawa; Satoshi Seino; Kenji Okitsu; Yoshiteru Mizukoshi; Shuichi Emura; Takao A. Yamamoto

doi:10.1007/s11051-005-9048-3

Sonochemically synthesized core-shell structured Au-Pd nanoparticles supported on γ-Fe₂O₃ particles

Hiroaki Nitani, Masato Yuya, Takahiro Ono, Takashi Nakagawa, Satoshi Seino, Kenji Okitsu, Yoshiteru Mizukoshi, Shuichi Emura, Takao A. Yamamoto

Trans-Regional Corporation Center for Industrial Materials Research

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

22 Citations (Scopus)

Abstract

A sample of Au-Pd bimetallic nanoparticles supported on γ-Fe ₂O₃ was synthesized in a sonochemically one-pot process. The structural analyses of the synthesized sample were performed by the techniques of X-ray Absorption Fine Structure (XAFS) X-ray Diffraction (XRD) Transmission Electron Microscopy (TEM) and UV-vis spectrometry. Results indicated that the synthesized sample formed a core-shell structure in which a gold core was surrounded by a thin palladium shell. The reaction rate constant for the hydrogenation of cyclohexene of the present sample showed higher value than that of Pd nanoparticles supported on γ-Fe₂O₃ and core-shell structured Au-Pd nanoparticles supported on SiO₂. The present sample is a promising catalyst material which has a high catalytic activity.

Original language	English
Pages (from-to)	951-958
Number of pages	8
Journal	Journal of Nanoparticle Research
Volume	8
Issue number	6
DOIs	https://doi.org/10.1007/s11051-005-9048-3
Publication status	Published - 2006 Dec 1

Keywords

Catalyst
Colloids
EXAFS
Nanocomposit
Nanostructure
Sonochemically synthesis
Three-phase mixture

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Atomic and Molecular Physics, and Optics
Modelling and Simulation
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1007/s11051-005-9048-3

Cite this

Sonochemically synthesized core-shell structured Au-Pd nanoparticles supported on γ-Fe₂O₃ particles. / Nitani, Hiroaki; Yuya, Masato; Ono, Takahiro; Nakagawa, Takashi; Seino, Satoshi; Okitsu, Kenji; Mizukoshi, Yoshiteru; Emura, Shuichi; Yamamoto, Takao A.

In: Journal of Nanoparticle Research, Vol. 8, No. 6, 01.12.2006, p. 951-958.

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

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abstract = "A sample of Au-Pd bimetallic nanoparticles supported on γ-Fe 2O3 was synthesized in a sonochemically one-pot process. The structural analyses of the synthesized sample were performed by the techniques of X-ray Absorption Fine Structure (XAFS) X-ray Diffraction (XRD) Transmission Electron Microscopy (TEM) and UV-vis spectrometry. Results indicated that the synthesized sample formed a core-shell structure in which a gold core was surrounded by a thin palladium shell. The reaction rate constant for the hydrogenation of cyclohexene of the present sample showed higher value than that of Pd nanoparticles supported on γ-Fe2O3 and core-shell structured Au-Pd nanoparticles supported on SiO2. The present sample is a promising catalyst material which has a high catalytic activity.",

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author = "Hiroaki Nitani and Masato Yuya and Takahiro Ono and Takashi Nakagawa and Satoshi Seino and Kenji Okitsu and Yoshiteru Mizukoshi and Shuichi Emura and Yamamoto, {Takao A.}",

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AU - Nitani, Hiroaki

AU - Yuya, Masato

AU - Ono, Takahiro

AU - Nakagawa, Takashi

AU - Seino, Satoshi

AU - Okitsu, Kenji

AU - Mizukoshi, Yoshiteru

AU - Emura, Shuichi

AU - Yamamoto, Takao A.

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N2 - A sample of Au-Pd bimetallic nanoparticles supported on γ-Fe 2O3 was synthesized in a sonochemically one-pot process. The structural analyses of the synthesized sample were performed by the techniques of X-ray Absorption Fine Structure (XAFS) X-ray Diffraction (XRD) Transmission Electron Microscopy (TEM) and UV-vis spectrometry. Results indicated that the synthesized sample formed a core-shell structure in which a gold core was surrounded by a thin palladium shell. The reaction rate constant for the hydrogenation of cyclohexene of the present sample showed higher value than that of Pd nanoparticles supported on γ-Fe2O3 and core-shell structured Au-Pd nanoparticles supported on SiO2. The present sample is a promising catalyst material which has a high catalytic activity.

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KW - Colloids

KW - EXAFS

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KW - Nanostructure

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