The Effect of Mn Co-doping on the Electrochemical Properties of Gd 0.2 Ce 0.8 O 1.9- d /Pt Model-composite Electrodes

Model-type thin films of Gd doped and Gd/Mn co-doped ceria were investigated by means of impedance spectroscopy in a humid H 2 atmosphere. A novel measurement technique for microelectrodes with interdigitating Pt current collectors was employed. This method allows a separation of the different eleme...

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Bibliographic Details
Published in:ECS transactions 2015-06, Vol.68 (1), p.1509-1516
Main Authors: Velicsanyi, Peter, Gerstl, Matthias, Nenning, Andreas, Hutter, Herbert, Fleig, Jürgen, Opitz, Alexander Karl
Format: Article
Language:English
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Summary:Model-type thin films of Gd doped and Gd/Mn co-doped ceria were investigated by means of impedance spectroscopy in a humid H 2 atmosphere. A novel measurement technique for microelectrodes with interdigitating Pt current collectors was employed. This method allows a separation of the different elementary processes contributing to the electrode impedance. After annealing at 650°C in humid H 2 atmosphere, an increase in catalytic activity of Gd/Mn co-doped ceria was observed.
ISSN:1938-5862
1938-6737
DOI:10.1149/06801.1509ecst