Preparation of Ru-C nano-composite films and their electrode properties for oxygen sensors

Teiichi Kimura, Takashi Goto

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

Ru-C nano-composite films containing about 73 vol% of carbon were prepared by MOCVD, and their microstructures and electrode properties were investigated. Ru particles of 5-20 nrn in diameter were dispersed in amorphous C matrix. The AC conductivities associating to the interface charge transfer between Ru-C composite electrode and YSZ electrolyte were 100-1000 times higher than that of Pt electrodes. The emf values of the oxygen gas concentration cell constructed from the nano-composite electrodes and YSZ electrolyte showed the Nernstian theoretical values at low temperatures around 500 K. The response time of the concentration cell was 900 s at 500 K.

Original languageEnglish
Pages (from-to)13-19
Number of pages7
JournalCeramic Transactions
Volume195
Publication statusPublished - 2006 Jul 24
Event6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6 - Maui, HI, United States
Duration: 2005 Sep 112005 Sep 16

ASJC Scopus subject areas

  • Ceramics and Composites

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