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Electrode Open Circuit Potentials and Oxidation Process at Au and Pt Electrodes/Solid Oxide Electrolyte Interfaces in Common Methane+Air Gas Mixture

Mordarski G., Suski L., Kołacz J., Ruggiero M.

Polish Journal of Chemistry

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2005

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Vol. 79 / nr 6

1063-1077

EN

Difference of potentials between two diversified electrodes, Au and Pt at a solid ionic conductor in a common gas mixture of fuel and oxidant, xCH4+(1-x)(0.2O2+0.8Ar) has been studied on the example of electrodes at ZrO2+8%Y2O3 electrolyte. The open circuit potentials of both electrodes have been determined as dependent on concentration of O2 in the gas mixture.Within some domain of gas composition the difference of open circuit potential (OCP) values achieves a stable value of ca. 700 mV. Experimental OCP values are compared to calculated ones and discussed as the results of chemical and/or electrochemical equilibria and steady states which may occur at the electrodes.

2

Wetting behavior of molten alkali carbonates on Au interface under various gas atmospheres

Godula-Jopek A., Suski L.

Polish Journal of Chemistry

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1998

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Vol. 72, nr 6

1045-1053

EN

Wettability of gold by molten (Li+Na), (Li+K) and (Li+Na+K) carbonate eutectic systems has been measured by sessile-drop method, as relevant to the problem of adhesion at the molten electrolyte/solid interfaces in molten carbonate fuel cell. The parameters determined and the literature surface tension data have been used for calculation of the adhesion work parameters for interfaces under study.

3

Wettability of gold, nickel and NiO by molten alkali carbonate under oxidant and reducing atmospheres as relevant to molten carbonate fuel cell.

Godula-Jopek A., Suski L.

Inżynieria Materiałowa

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1998

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R. XIX, nr 4

880-883

EN

Wettability of gold by molten (Li+Na), (Li+K) carbonate eutectic systems has been measured by sessile-drop method, as relevant to the problem of adhesion at the molten electrolyte/solid interfaces in molten carbonate fuel cell. The determined parameters and the surface tension data for the respective systems, reported in the literature, have been used for calculation of the adhesion work parameters for the interfaces under study.