Abstract
Iridium-carbon (Ir-C) cluster films were prepared by metal organic chemical vapor deposition (MOCVD) using an acetylacetonate precursor. The Ir-C cluster films consist of Ir clusters (1 to 3 nm in diameter) and amorphous carbon layers which surround each Ir cluster. The Ir-C cluster films had excellent electrochemical performance as a reversible electrode for zirconia solid electrolyte particularly at low temperatures. The electrode/electrolyte interface conductivity of the Ir-C cluster films was about 100 times greater than that for other conventional platinum electrodes below 773 K. The emf values of the oxygen cell constructed from the Ir-C cluster film electrodes and zirconia electrolytes showed the Nernstian theoretical values even at 573 K.
Original language | English |
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Pages (from-to) | 223-226 |
Number of pages | 4 |
Journal | Materials Science and Engineering A |
Volume | 217-218 |
DOIs | |
Publication status | Published - 1996 Oct 30 |
Externally published | Yes |
Keywords
- Iridium-carbon cluster films
- MOCVD
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering