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 conferencePaperpeer-review

    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 languageEnglish
    Number of pages1
    Publication statusPublished - Dec 1 2005
    Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
    Duration: May 25 2005May 27 2005

    Other

    Other54th SPSJ Annual Meeting 2005
    CountryJapan
    CityYokohama
    Period5/25/055/27/05

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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