SODIUM CATIONIC CONDUCTION IN THE NA4-2XCAXP2O7 SYSTEM

Citation
Ei. Burmakin et al., SODIUM CATIONIC CONDUCTION IN THE NA4-2XCAXP2O7 SYSTEM, Russian journal of electrochemistry, 33(5), 1997, pp. 503-506
Citations number
10
Categorie Soggetti
Electrochemistry
ISSN journal
10231935
Volume
33
Issue
5
Year of publication
1997
Pages
503 - 506
Database
ISI
SICI code
1023-1935(1997)33:5<503:SCCITN>2.0.ZU;2-C
Abstract
Phase composition and conductance are studied in the Na4-2xCaxP2O7 sys tem (0 less than or equal to x less than or equal to 0.3). A wide rang e of solid solutions based on Na4P2O7 is found. The conductivity of th ese solid solutions is of the sodium cationic nature and equals (3.5-4 .5) x 10(-2) S/cm at 500 degrees C, which is higher than that of pure Na4P2O7 by more than two orders of magnitude. The role of the Ca2+ add itive is in the formation of sodium vacancies.