New barium cobaltite series Ba(n+1)Co(n)O(3n+3)(Co8O8): intergrowth structure containing perovskite and CdI2-type layers

Junliang Sun; Min Yang; Guobao Li; Tao Yang; Fuhui Liao; Yingxia Wang; Ming Xiong; Jianhua Lin

doi:10.1021/ic060992v

New barium cobaltite series Ba(n+1)Co(n)O(3n+3)(Co8O8): intergrowth structure containing perovskite and CdI2-type layers

Inorg Chem. 2006 Nov 13;45(23):9151-3. doi: 10.1021/ic060992v.

Authors

Junliang Sun¹, Min Yang, Guobao Li, Tao Yang, Fuhui Liao, Yingxia Wang, Ming Xiong, Jianhua Lin

Affiliation

¹ Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

PMID: 17083205
DOI: 10.1021/ic060992v

Abstract

Single crystals of two new cobaltites, Ba2Co9O14 and Ba3Co10O17, were obtained from the flux of K2CO3 in the temperature range 800-890 degrees C. They crystallize in an intergrowth structure containing perovskite block and CdI2-type layers and can be attributed to the n = 1 and 2 members in a new intergrowth series of cobaltites, Ba(n+1)Co(n)O(3n+3)(Co8O8). Both Ba2Co9O14 and Ba3Co10O17 are metastable and transform into the known 2H-perovskite-related oxides at high temperature.