Problems of nonstoichiometry in the BaCuO2 system

Authors
Skolis, YY Kovba, ML
Citation
Yy. Skolis et Ml. Kovba, Problems of nonstoichiometry in the BaCuO2 system, RUSS J PH C, 74(12), 2000, pp. 2055-2059
Citations number
25
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY
ISSN journal
00360244 → ACNP
Volume
74
Issue
12
Year of publication
2000
Pages
2055 - 2059
Database
ISI
SICI code
0036-0244(200012)74:12<2055:PONITB>2.0.ZU;2-H
Abstract
The electromotive force technique in conjunction with a fluoride electrolyt e was used to determine the region homogeneity barium cuprate with respect to copper and oxygen. A new procedure was developed for measuring the conte nt of carbonate ions in complex oxocarbonate compounds. It was found that b arium cuprate at equilibrium with CuO at 1120 K, p(O-2) = 1 bar, and p(CO2) = 10(-4)-10(-2.5) bar has a BaCu1.15O2.175(CO2)(0.141) composition.