Relative humidity-dependences of proton conductiVities of metal nanoparticles protected by rubeanic acid polymer

Musashi Fujishima; Ryuichi Ikeda; Takashi Kubo; Kazuhiro Nakasuji; Yuki Nagao; Miho Yamauchi; Yoshio Bando; Kumao Uchida; Hiroshi Kitagawa

Relative humidity-dependences of proton conductiVities of metal nanoparticles protected by rubeanic acid polymer

Musashi Fujishima, Ryuichi Ikeda, Takashi Kubo, Kazuhiro Nakasuji, Yuki Nagao, Miho Yamauchi, Yoshio Bando, Kumao Uchida, Hiroshi Kitagawa

Research output: Contribution to conference › Paper

Abstract

The polymer-protected metal nanoparticle, characterized by a uniform particle size, a monodispersity and a large specific surface area with a chemical stability, has attracted much attention because of its potential application in the hydrogen technology. In this study, by use of a rubeanic acid polymer (RAP) with a dibasic acidic character, polymer-protected noble metal nanoparticles (RAP-Pt, RAP-Pd) with 4~15 nm diameters were successfully synthesized. Their proton conductivities at room temperature show relative humidity (RH)-dependences and reach at remarkably high value (>1×10^-2Scm^-1) at RH = 100 %. The mechanism of this phenomenon will be also described.

Original language	English
Number of pages	1
Publication status	Published - 2005 Dec 1
Externally published	Yes
Event	54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: 2005 May 25 → 2005 May 27

Other

Other	54th SPSJ Annual Meeting 2005
Country	Japan
City	Yokohama
Period	05/5/25 → 05/5/27

Keywords

Dibasic acid polymer
Polymer-protected metal nanoparticle
Proton conductivity

ASJC Scopus subject areas

Engineering(all)

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Relative humidity-dependences of proton conductiVities of metal nanoparticles protected by rubeanic acid polymer. / Fujishima, Musashi; Ikeda, Ryuichi; Kubo, Takashi; Nakasuji, Kazuhiro; Nagao, Yuki; Yamauchi, Miho; Bando, Yoshio; Uchida, Kumao; Kitagawa, Hiroshi.

2005. Paper presented at 54th SPSJ Annual Meeting 2005, Yokohama, Japan.

Research output: Contribution to conference › Paper

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abstract = "The polymer-protected metal nanoparticle, characterized by a uniform particle size, a monodispersity and a large specific surface area with a chemical stability, has attracted much attention because of its potential application in the hydrogen technology. In this study, by use of a rubeanic acid polymer (RAP) with a dibasic acidic character, polymer-protected noble metal nanoparticles (RAP-Pt, RAP-Pd) with 4~15 nm diameters were successfully synthesized. Their proton conductivities at room temperature show relative humidity (RH)-dependences and reach at remarkably high value (>1×10-2Scm-1) at RH = 100 %. The mechanism of this phenomenon will be also described.",

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AU - Fujishima, Musashi

AU - Ikeda, Ryuichi

AU - Kubo, Takashi

AU - Nakasuji, Kazuhiro

AU - Nagao, Yuki

AU - Yamauchi, Miho

AU - Bando, Yoshio

AU - Uchida, Kumao

AU - Kitagawa, Hiroshi

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N2 - The polymer-protected metal nanoparticle, characterized by a uniform particle size, a monodispersity and a large specific surface area with a chemical stability, has attracted much attention because of its potential application in the hydrogen technology. In this study, by use of a rubeanic acid polymer (RAP) with a dibasic acidic character, polymer-protected noble metal nanoparticles (RAP-Pt, RAP-Pd) with 4~15 nm diameters were successfully synthesized. Their proton conductivities at room temperature show relative humidity (RH)-dependences and reach at remarkably high value (>1×10-2Scm-1) at RH = 100 %. The mechanism of this phenomenon will be also described.

AB - The polymer-protected metal nanoparticle, characterized by a uniform particle size, a monodispersity and a large specific surface area with a chemical stability, has attracted much attention because of its potential application in the hydrogen technology. In this study, by use of a rubeanic acid polymer (RAP) with a dibasic acidic character, polymer-protected noble metal nanoparticles (RAP-Pt, RAP-Pd) with 4~15 nm diameters were successfully synthesized. Their proton conductivities at room temperature show relative humidity (RH)-dependences and reach at remarkably high value (>1×10-2Scm-1) at RH = 100 %. The mechanism of this phenomenon will be also described.

KW - Dibasic acid polymer

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KW - Proton conductivity

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