Enhanced Oxide Ion Conductivity in Stabilized -Bi2O3
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- 作者：Rita Punn ; Antonio M. Feteira ; Derek C. Sinclair ; Colin Greaves
- 刊名：Journal of the American Chemical Society
- 出版年：2006
- 出版时间：December 6, 2006
- 年：2006
- 卷：128
- 期：48
- 页码：15386 - 15387
- 全文大小：54K
- 年卷期：v.128,no.48(December 6, 2006)
- ISSN：1520-5126
文摘
The substitution of Re into Bi2O3 allows stabilization of the 
-Bi2O3 structure by additional substitution of any lanthanide ion to give, for example, phases of composition Bi12.5La1.5ReO24.5. Some of these phases have been found to show exceptionally high oxide ion conductivity at low temperatures, ca 10-3 S cm-1 at 300 
C. The phases show a significant structural difference from other -Bi2O3 phases previously reported, with interstitial anion sites displaced further from the ideal fluorite position, (1/4,1/4,1/4).
-Bi2O3 structure by additional substitution of any lanthanide ion to give, for example, phases of composition Bi12.5La1.5ReO24.5. Some of these phases have been found to show exceptionally high oxide ion conductivity at low temperatures, ca 10-3 S cm-1 at 300 C. The phases show a significant structural difference from other -Bi2O3 phases previously reported, with interstitial anion sites displaced further from the ideal fluorite position, (1/4,1/4,1/4).