Surface and bulk phases in substituted cobalt oxide spinels
UNSPECIFIED. (1998) Surface and bulk phases in substituted cobalt oxide spinels. JOURNAL OF MATERIALS CHEMISTRY, 8 (4). pp. 1095-1098. ISSN 0959-9428Full text not available from this repository.
Samples of cobalt oxide spinel doped with a range of cations (Li, Ni, Zn, Cu, Al, Ga, Mn, Ti, Sn, Ge) have been prepared and examined by X-ray diffraction and X-ray photoelectron spectroscopy. Surface enrichment in the dopant species is frequently observed. Determination of the ratio of the two cobalt oxidation states in the surface layers is found to be useful in distinguishing between solid solution behaviour and the nucleation of surface phases. This ratio may also be helpful in characterising the preferred occupancy of octahedral and tetrahedral sites in the near surface regions.
|Item Type:||Journal Article|
|Subjects:||Q Science > QD Chemistry
T Technology > TA Engineering (General). Civil engineering (General)
|Journal or Publication Title:||JOURNAL OF MATERIALS CHEMISTRY|
|Publisher:||ROYAL SOC CHEMISTRY|
|Official Date:||April 1998|
|Number of Pages:||4|
|Page Range:||pp. 1095-1098|
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