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Proton Conductivity of Natural Diatomite

Published online by Cambridge University Press:  23 May 2014

Bo Wang*
Affiliation:
Research and Applications, Imerys, San Jose, CA 95134, U.S.A.
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Abstract

Proton conductivity of the natural diatomite was studied by ac complex impedance technique. At room temperature, the highest proton conductivity was found to be 4.5 x 10-7 S·cm-1. By hydrating the diatomite, the proton conductivity was increased to two orders of magnitude higher. The room temperate proton conductivity of the hydrated diatomite (5.5 x 10-5 S·cm-1) was comparable to other hydrated solid proton conductors. The natural diatomite could be used as potential cost-effective proton conductor for electrochemical applications.

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Articles
Copyright
Copyright © Materials Research Society 2014 

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