IJSEA Volume 12 Issue 12

Unveiling the Promoted LSTM/YSZ Composite Anode for Direct Utilization of Hydrocarbon Fuels

Amin Nakhi, Seyed Mostafa, Amirmohammad Karimi, Mostafa Mobli
10.7753/IJSEA1212.1005
keywords : oxide fuel cell, anode electrode, LSTM/YSZ, electrochemical impedance spectroscopy, methanol oxidation, LFC

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The global quest for sustainable and diversified energy sources due to increased demand and environmental concerns has placed considerable emphasis on optimizing the efficiency of energy conversion devices. Solid oxide fuel cells (SOFCs) are known for their superior energy conversion capabilities utilizing hydrocarbons directly. Conventional SOFC anodes, typically composed of Ni/YSZ cermet, have drawbacks, such as susceptibility to coking and sulfur poisoning when using hydrocarbon fuels. Mixed ionic and electronic conductive (MIEC) materials, including La0.4Sr0.6Ti1-xMnxO3, have gained attention for their resistance to carbon and sulfur-related problems, as well as their thermal and redox stability. This study explores the electro-oxidation of methanol on a composite anode made of La0.4Sr0.6Ti0.6Mn0.4O3-? and yttria-stabilized zirconia. To enhance the electrode's performance, LaFe0.6Co0.4O3 solutions, with various concentrations, are impregnated into the composite anode. Impedance spectroscopy measurements reveal improved performance, especially with the inclusion of ethylene glycol (EG), demonstrating lower electrode polarization resistance and enhanced catalytic activity. The X-ray diffraction analysis confirms the formation of LFC perovskite phases within the porous structure of the composite anode. The results indicate that the impregnation of LSTM/YSZ composite anodes with LFC solutions, particularly those with EG, enhances the methanol electro-oxidation reaction, making this composite a promising candidate for high-performance SOFC anodes. This research paves the way for more efficient and stable SOFCs, contributing to the sustainable energy landscape.
@artical{a12122023ijsea12121005,
Title = "Unveiling the Promoted LSTM/YSZ Composite Anode for Direct Utilization of Hydrocarbon Fuels",
Journal ="International Journal of Science and Engineering Applications (IJSEA)",
Volume = "12",
Issue ="12",
Pages ="18 - 24",
Year = "2023",
Authors ="Amin Nakhi, Seyed Mostafa, Amirmohammad Karimi, Mostafa Mobli"}