Catalytic activity of lali0.1co0.1fe0.8o3-d cathode in (Li0.62K0.38)2CO3 melt. Part II. The reaction mechanisms and catalytic activity of the oxide electrode

The oxygen reduction mechanisms on an oxide electrode are proposed. It was found, that in the temperature range 870–1020 K mechanism involving superoxide ions dominates, whereas in T < 870 К region the reaction mechanisms involving molecular oxygen apparently take place.

Authors:

Vecherskii Sergei Ivanovich, Institute of high-temperature Electrochemistry UB of RAS, 20, Akademicheskaya St., Yekaterinburg, 620990, vecherskii@ihte.uran.ru

Konopel'ko Maksim Alekseevich, Institute of high-temperature Electrochemistry UB of RAS, 20, Akademicheskaya St., Yekaterinburg, 620990, konopelko@ihte.uran.ru

Batalov Nikolai Nikolaevich, Institute of high-temperature Electrochemistry UB of RAS, 20, Akademicheskaya St., Yekaterinburg, 620990, batalov@ihim.uran.ru

Key words:

MCFC, carbonate melt, oxygen electrode, perovskite, catalytic activity, reaction mechanism

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Journal issue:

2014. Т. 14, № 1,

Heading:

Fuel cells

DOI:

https://doi.org/10.18500/1608-4039-2014-14-1-19-25

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