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

• Autorzy: Mordarski G. , Suski L. , Kołacz J. , Ruggiero M.
• Języki publikacji: EN

Abstrakty

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.

Słowa kluczowe

EN

fuel cells; solid ionic conductors; single chamber fuel cell

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2005
• Tom: Vol. 79 / nr 6
• Strony: 1063--1077
• Opis fizyczny: Bibliogr. 30 poz., rys.

Twórcy

autor

Mordarski G.

• Institute of Physical Chemistry of the Polish Academy of Sciences, Department of Electrochemical Oxidation of Gaseous Fuels, ul Zagrody 13, 30-318 Kraków, Poland

autor

Suski L.

• Institute of Physical Chemistry of the Polish Academy of Sciences, Department of Electrochemical Oxidation of Gaseous Fuels, ul Zagrody 13, 30-318 Kraków, Poland

autor

Kołacz J.

• Institute of Physical Chemistry of the Polish Academy of Sciences, Department of Electrochemical Oxidation of Gaseous Fuels, ul Zagrody 13, 30-318 Kraków, Poland

autor

Ruggiero M.

• Institute of Physical Chemistry of the Polish Academy of Sciences, Department of Electrochemical Oxidation of Gaseous Fuels, ul Zagrody 13, 30-318 Kraków, Poland

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