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.
|Number of pages||7|
|Publication status||Published - 2006 Jul 24|
|Event||6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6 - Maui, HI, United States|
Duration: 2005 Sep 11 → 2005 Sep 16
ASJC Scopus subject areas
- Ceramics and Composites