| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1298686 | Solid State Ionics | 2008 | 5 Pages |
Abstract
Layered cobalt oxides, NaxCoO2, with the density of sodium ions, x, ranging from 0.65 to 0.85, were prepared by rapid heat-up method. The determination by X-ray diffraction pattern of crystal structure and the grain morphology studied by scanning electron microscopy were reported. The measurements of electrical conductivity and thermoelectric power were carried out between 300 K and 1100 K. It has been found that the concentration of sodium ions sandwiched between two neighboring CoO2 layers plays a crucial role in transport properties.
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Authors
Pusheng Liu, Gang Chen, Ying Cui, Hongjie Zhang, Feng Xiao, Lin Wang, Hiromi Nakano,