Nanoprotonics in perovsikte-type oxides: Reversible changes in color and ion conductivity due to nanoionics phenomenon in platinum-containing perovskite oxide

Hiroshige Matsumoto, Takayoshi Tanji, Koji Amezawa, Tatsuya Kawada, Yoshiharu Uchimoto, Yoshihisa Furuya, Takaaki Sakai, Maki Matsuka, Tatsumi Ishihara

研究成果: ジャーナルへの寄稿記事

13 引用 (Scopus)

抄録

The ion conductivity of a solid-state material is primarily a function of its chemical composition and crystal structure. However, interfaces can play an important role in the conduction process. The effects of interfaces on ionic properties can be controlled on the basis of "nanoionics". In this study, we demonstrate a nanoionics phenomenon observed in a blue platinum-containing perovskite. The proton conductivity changed reversibly in response to the precipitation of platinum nanoparticles and oxidation to form a solid solution. The results of XAFS measurements, TEM analysis, and electron holography provide evidence of the nanoionics phenomenon, and suggest a possible underlying mechanism for the conductivity change caused by the small amount of precipitated platinum nanoparticles in the perovskite oxide.

元の言語英語
ページ(範囲)13-18
ページ数6
ジャーナルSolid State Ionics
182
発行部数1
DOI
出版物ステータス出版済み - 2 3 2011

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Platinum
Perovskite
Oxides
platinum
Ions
Color
color
conductivity
oxides
Electron holography
Nanoparticles
nanoparticles
ions
Proton conductivity
holography
Solid solutions
chemical composition
solid solutions
Crystal structure
Transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

これを引用

Nanoprotonics in perovsikte-type oxides : Reversible changes in color and ion conductivity due to nanoionics phenomenon in platinum-containing perovskite oxide. / Matsumoto, Hiroshige; Tanji, Takayoshi; Amezawa, Koji; Kawada, Tatsuya; Uchimoto, Yoshiharu; Furuya, Yoshihisa; Sakai, Takaaki; Matsuka, Maki; Ishihara, Tatsumi.

:: Solid State Ionics, 巻 182, 番号 1, 03.02.2011, p. 13-18.

研究成果: ジャーナルへの寄稿記事

Matsumoto, Hiroshige ; Tanji, Takayoshi ; Amezawa, Koji ; Kawada, Tatsuya ; Uchimoto, Yoshiharu ; Furuya, Yoshihisa ; Sakai, Takaaki ; Matsuka, Maki ; Ishihara, Tatsumi. / Nanoprotonics in perovsikte-type oxides : Reversible changes in color and ion conductivity due to nanoionics phenomenon in platinum-containing perovskite oxide. :: Solid State Ionics. 2011 ; 巻 182, 番号 1. pp. 13-18.
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AU - Matsumoto, Hiroshige

AU - Tanji, Takayoshi

AU - Amezawa, Koji

AU - Kawada, Tatsuya

AU - Uchimoto, Yoshiharu

AU - Furuya, Yoshihisa

AU - Sakai, Takaaki

AU - Matsuka, Maki

AU - Ishihara, Tatsumi

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