ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)


MCFC

Влияние методики синтеза на физико-химические свойства LaLi0.1Со0.1Fe0.8O3-δ

The phase composition, conductivity and corrosion resistance under the Molten Carbonate Fuel Cell (MCFC) operating conditions of synthesized using common ceramic and cocrystallization techniques samples of LaLi0.1Со0.1Fe0.8O3 – δ have been studied. It was found, that the phase composition of synthesized by ceramic technique sample differed from the nominal composition.

Catalytic activity of LaLi0.1M0.1Fe0.8O3-d (M = Fe, Co, Ni) oxides for molten carbonate fuel cell. Part 1. Polarization Characteristics of Porous Gas Diffusion Electrodes in (Li0.62K0.38)2CO3 Melt. An Experimental Study

This paper presents polarization characteristics of porous gas diffusion cathodes prepared from LaLi0.1M0.1Fe0.8O3-d (M = Fe, Co, Ni) oxides with a perovskite related structure and Li0.1Ni0.9O oxide with a rock salt structure. The characteristics were measured in the laboratory scale fuel cell in the temperature range 820–1000 K. It has been shown that electrochemical activity of the cathodes with Co and Ni additives exceeds the activity of the Li0.1Ni0.9O cathode below 970 K.

Catalytic activity oF LaLi0.1M0.1Fe0.8O3-d (M = Fe, Co, Ni) Oxides for molten carbonate fuel cell. Part 2. Reaction Mechanisms and Catalytic Activity in (Li0.62K0.38)2CO3 Melt

New mechanisms of oxygen reduction on perovskite related oxides LaLi0.1M0.1Fe0.8O3-d (M = Fe, Co, Ni) and a rock salt type oxide Li0.1Ni0.9O have been proposed. Based on these mechanisms, a comparison of catalytic activity of the oxides in the temperature range 820–1000 K has been done. It has been shown that catalytic activity of LaLi0.Co0.1Fe0.8O3-d oxide exceeds the activity of Li0.1Ni0.9O below 970 K