The Effect of Mn Co-doping on the Electrochemical Properties of Gd0.2Ce0.8O1.9- /Pt Model-composite Electrodes
نویسندگان
چکیده
Model-type thin films of Gd doped and Gd/Mn co-doped ceria were investigated by means of impedance spectroscopy in a humid H2 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 H2 atmosphere, an increase in catalytic activity of Gd/Mn co-doped ceria was observed.
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