Electric transport in tungstates Ln2(WO4)3 (La = Yb, Lu)

• Published in: Russian journal of electrochemistry Vol. 53; no. 7; pp. 744 - 751
• Main Authors: Pestereva, N. N., Lopatin, D. A., Guseva, A. F., Vostrotina, E. L., Korona, D. V., Nokhrin, S. S.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-07-2017; Springer Nature B.V
• Subjects: Chemistry; Chemistry and Materials Science; Conductors; Electrical resistivity; Electrochemistry; Lutetium; Physical Chemistry; Transport; Tungstates; Ytterbium; transport number; Tubandt method; conductivity; charge carriers; structure of scandium tungstate; lanthanides
• ISSN: 1023-1935; 1608-3342
• DOI: 10.1134/S1023193517070084

Electrical transport in orthorhombic ytterbium and lutetium tungstates with Sc
2
(WO
4
)
3
structural type was studied. It was proved by using two independent methods (EMF, dependence of conductivity on pressure of oxygen in the gas phase) that these phases are purely ionic conductors. It was found by Tubandt method for Lu
2
(WO
4
)
3
the negligible contribution of the [WO
4
]
2–
anion into transport, which, together with the results of the EMF technique, indicates a predominantly oxygen character of conductivity.