Article ID Journal Published Year Pages File Type
1290230 Journal of Power Sources 2008 6 Pages PDF
Abstract

Differential resistance analysis (DRA) is used for determination of authentic bulk conductivity of yttrium-doped barium cerate proton conductors (BCY) using electrochemical impedance spectroscopy (EIS), by eliminating all electrode and fixture resistance as well as interfacial or surface phenomena. Bulk conductivity determined using DRA in the range 500–800 °C was higher by a factor of 1.5–3 than values obtained for conductivity of the same electrolyte using EIS alone. Application of DRA with EIS provides geometrically independent conductivity values.

Related Topics
Physical Sciences and Engineering Chemistry Electrochemistry
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