The phase relations in the system V/Nb/O, IV. Solid electrolytic coulometry (SEC) as a method to investigate ternary systems: V/Nb/O

Authors
Kirsten, L von Woedtke, E Oppermann, H
Citation
L. Kirsten et al., The phase relations in the system V/Nb/O, IV. Solid electrolytic coulometry (SEC) as a method to investigate ternary systems: V/Nb/O, Z NATURFO B, 54(1), 1999, pp. 123-130
Citations number
8
Categorie Soggetti
Chemistry
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
ISSN journal
09320776 → ACNP
Volume
54
Issue
1
Year of publication
1999
Pages
123 - 130
Database
ISI
SICI code
0932-0776(199901)54:1<123:TPRITS>2.0.ZU;2-7
Abstract
The observation of reductive decomposition with SEC-current-time-temperatur e curves on the binary line V2O5-Nb2O5 is a useful method to determine qual itatively and quantitatively ("quasi in situ") the known ternary coexistenc e regions. By reduction of VO2 the Magneli-Phases VnO2n-1 are generated. Th e method is generally applicable and allows rapid information by reductive decompositon or oxidative formation in coexistence regions. The conditions of decomposition can be optimized for a given system. Slow s olid-gas equilibria are not detectable by this method.