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Synthesis and oxygen permeation properties of 75 mol% Ce0.75Nd0.25O1.875–25 mol% Nd1.8Ce0.2CuO4 composite |
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| Authors: | Kiyoshi Kobayashi Masateru Nishioka Koichi Sato Tomoya Inoue Satoshi Hamakawa Tatsuo Tsunoda |
| Institution: | (1) National Institute of Advanced Industrial Science and Technology, 4-2-1, Nigatake, Miyagino-ku Sendai, 983-8551, Japan;(2) Present address: International Center for Young Scientist, Fuel Cell Materials Center, National Institute for Materials Science, 1-1, Namiki, Tsukuba 305-0044, Japan |
| Abstract: | An oxygen-permeable composite constituted to oxide ionic conductor phase (Ce0.75Nd0.25O1.875) and oxide electronic conductor phase (Nd1.8Ce0.2CuO4) was prepared using the acetate pyrolysis method. Based on electrical conductivity measurements, total electrical conductivity of 75 mol% Ce0.75Nd0.25O1.875–25 mol% Nd1.8Ce0.2CuO4 composite material was governed by the electronic conduction paths. With respect to the oxygen permeation properties, the results showed that oxygen permeation properties were unexplainable by a simple composite rule using the electrical transport properties of the bulk Ce0.75Nd0.25O1.875 and the bulk Nd1.8Ce0.2CuO4. |
| Keywords: | Composite Dual phase Oxygen permeation Ceria Neodymium copper oxide Acetate pyrolysis Interface |
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