Addition of electrical conductivity to metal oxide particles using the polygonal barrel-sputtering method

Mitsuhiro Inoue; Yuta Takahashi; Mitsuhiko Katagiri; Takayuki Abe; Minoru Umeda

doi:10.1016/j.jallcom.2016.01.224

Addition of electrical conductivity to metal oxide particles using the polygonal barrel-sputtering method

Mitsuhiro Inoue, Yuta Takahashi, Mitsuhiko Katagiri, Takayuki Abe, Minoru Umeda^*

^*Corresponding author for this work

Hydrogen Isotope Research Center, Organization for Promotion of Research

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

4 Scopus citations

Abstract

The surface modification of Al₂O₃particles with Au was investigated using the polygonal barrel-sputtering method. When the Au was sputtered, a hexagonal barrel loaded with Al₂O₃particles was oscillated. As a result, the appearance of the sample changed from white to dark brown. The characterization of the prepared sample showed that the surfaces of the Al₂O₃particles were uniformly modified with Au having a face-centered cubic structure. The electrical conductivity of the prepared sample was very high (σ = 1.19 × 10³–2.45 × 10³ S m⁻¹) and its electrochemical property was similar to that of the bulk Au metal. Thus, the polygonal barrel-sputtering method is concluded to be useful for providing an electrical conductivity to insulators such as metal oxide particles.

Original language	English
Pages (from-to)	170-174
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	670
DOIs	https://doi.org/10.1016/j.jallcom.2016.01.224
State	Published - 2016

Keywords

Dry process
Electrical conductivity
Metal oxide particle
Particle surface modification
Polygonal barrel-sputtering method

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2016.01.224

Cite this

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title = "Addition of electrical conductivity to metal oxide particles using the polygonal barrel-sputtering method",

abstract = "The surface modification of Al2O3particles with Au was investigated using the polygonal barrel-sputtering method. When the Au was sputtered, a hexagonal barrel loaded with Al2O3particles was oscillated. As a result, the appearance of the sample changed from white to dark brown. The characterization of the prepared sample showed that the surfaces of the Al2O3particles were uniformly modified with Au having a face-centered cubic structure. The electrical conductivity of the prepared sample was very high (σ = 1.19 × 103–2.45 × 103 S m−1) and its electrochemical property was similar to that of the bulk Au metal. Thus, the polygonal barrel-sputtering method is concluded to be useful for providing an electrical conductivity to insulators such as metal oxide particles.",

keywords = "Dry process, Electrical conductivity, Metal oxide particle, Particle surface modification, Polygonal barrel-sputtering method",

author = "Mitsuhiro Inoue and Yuta Takahashi and Mitsuhiko Katagiri and Takayuki Abe and Minoru Umeda",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

doi = "10.1016/j.jallcom.2016.01.224",

language = "英語",

volume = "670",

pages = "170--174",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Addition of electrical conductivity to metal oxide particles using the polygonal barrel-sputtering method

AU - Inoue, Mitsuhiro

AU - Takahashi, Yuta

AU - Katagiri, Mitsuhiko

AU - Abe, Takayuki

AU - Umeda, Minoru

PY - 2016

Y1 - 2016

N2 - The surface modification of Al2O3particles with Au was investigated using the polygonal barrel-sputtering method. When the Au was sputtered, a hexagonal barrel loaded with Al2O3particles was oscillated. As a result, the appearance of the sample changed from white to dark brown. The characterization of the prepared sample showed that the surfaces of the Al2O3particles were uniformly modified with Au having a face-centered cubic structure. The electrical conductivity of the prepared sample was very high (σ = 1.19 × 103–2.45 × 103 S m−1) and its electrochemical property was similar to that of the bulk Au metal. Thus, the polygonal barrel-sputtering method is concluded to be useful for providing an electrical conductivity to insulators such as metal oxide particles.

AB - The surface modification of Al2O3particles with Au was investigated using the polygonal barrel-sputtering method. When the Au was sputtered, a hexagonal barrel loaded with Al2O3particles was oscillated. As a result, the appearance of the sample changed from white to dark brown. The characterization of the prepared sample showed that the surfaces of the Al2O3particles were uniformly modified with Au having a face-centered cubic structure. The electrical conductivity of the prepared sample was very high (σ = 1.19 × 103–2.45 × 103 S m−1) and its electrochemical property was similar to that of the bulk Au metal. Thus, the polygonal barrel-sputtering method is concluded to be useful for providing an electrical conductivity to insulators such as metal oxide particles.

KW - Dry process

KW - Electrical conductivity

KW - Metal oxide particle

KW - Particle surface modification

KW - Polygonal barrel-sputtering method

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U2 - 10.1016/j.jallcom.2016.01.224

DO - 10.1016/j.jallcom.2016.01.224

M3 - 学術論文

AN - SCOPUS:85006910334

SN - 0925-8388

VL - 670

SP - 170

EP - 174

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Addition of electrical conductivity to metal oxide particles using the polygonal barrel-sputtering method

Abstract

Keywords

ASJC Scopus subject areas

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