Conductivity of alkali perchlorates at high temperatures
Journal article, 2008

Ionic conductivity of high-temperature phases of alkaline metal perchlorates is studied. It is found that the conductivity passes through a minimum with increasing radius of cation, and KClO4 exhibits the lowest conductivity. This is explained by a decrease in the relative size of conduction channel, which hampers the cation transfer, and an increase in the relative free volume. The free-volume increase promotes the perchlorate anion reorientation and reduces the activation energy for ion transfer by the "paddle-wheel" mechanism, as a result, the conductivity increases. (c) 2007 Elsevier B.V. All rights reserved.

ionic conductivity



reorientation of anions



A. S. Ulihin

Russian Academy of Sciences

N. F. Uvarov

Russian Academy of Sciences

Bengt-Erik Mellander

Chalmers, Applied Physics, Solid State Physics

Solid State Ionics

0167-2738 (ISSN)

Vol. 179 1-6 228-230

Subject Categories

Other Engineering and Technologies

Condensed Matter Physics



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