bond valence analysis;
ion transport pathways;
anion conductors;
trivalent cation conductors;
lithium lanthanum titanate;
D O I:
10.1016/j.ssi.2006.03.054
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Applications of the bond valence method for the analysis of ion transport pathways in crystalline cation ion conductors with various mobile cations are reviewed and an extension of the approach to anion conductors is discussed. In both cases the discussion highlights structures, where special care is required in the interpretation of the pathway model. The extension of the bond valence approach enhances the application range of the method for the identification of the ion transport mechanisms to materials, where both cations and anions have to be considered as potentially mobile species, as demonstrated for the presumed trivalent cation conductor Sc-2(WO4)(3). (c) 2006 Elsevier B.V. All rights reserved.