Preparation of Ru-C nano-compoasite film by MOCVD and electrode properties for oxygen gas sensor

Teiichi Kimura, Takashi Goto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Ru-C nano-composite films were prepared by metal-organic chemical vapor deposition (MOCVD), and their microstructures and their electrode properties for oxygen gas sensors were investigated. Deposited films contained Ru particles of 5-20 nm in diameter dispersed in amorphous C matrix. The AC conductivities associating to the interface charge transfer between Ru-C composite electrode and YSZ electrolyte were 1000-10000 times higher than that of conventional paste-Pt electrodes. The electro-motive-force (emf) values of the oxygen gas concentration cell constructed from the nano-composite electrodes and YSZ electrolyte showed the Nemstian theoretical values at low temperatures around 500 K. The response time of the concentration cell at 500 K was 900 s.

Original languageEnglish
Title of host publicationProgress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006)
PublisherTrans Tech Publications Ltd
Pages1485-1488
Number of pages4
EditionPART 2
ISBN (Print)0878494197, 9780878494194
DOIs
Publication statusPublished - 2007 Jan 1
Event2006 Powder Metallurgy World Congress and Exhibition, PM 2006 - Busan, Korea, Republic of
Duration: 2006 Sep 242006 Sep 28

Publication series

NameMaterials Science Forum
NumberPART 2
Volume534-536
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other2006 Powder Metallurgy World Congress and Exhibition, PM 2006
CountryKorea, Republic of
CityBusan
Period06/9/2406/9/28

Keywords

  • AC impedance spectroscopy
  • Catalytic electrode
  • Metal organic chemical vapor deposition
  • Nano-composite
  • Oxygen gas sensor

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Kimura, T., & Goto, T. (2007). Preparation of Ru-C nano-compoasite film by MOCVD and electrode properties for oxygen gas sensor. In Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006) (PART 2 ed., pp. 1485-1488). (Materials Science Forum; Vol. 534-536, No. PART 2). Trans Tech Publications Ltd. https://doi.org/10.4028/0-87849-419-7.1485