Performance and stability of LSCF cathode of solid oxide fuel cell promoted with silver nano-catalyst
Publish place: 10th joint meeting of the 5th International Conference on Materials and Metallurgical Engineering Society and Iranian Foundry Society
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IMES10_230
تاریخ نمایه سازی: 6 اردیبهشت 1396
Abstract:
Mixed ionic-electronic conductor perovskite with the chemical formula of LaxSr1-xCoyFe1-yO3-δ (LSCF) has been widely studied as a cathode material for solid oxide fuel cells. However, limited catalytic activity and the long term stability of LSCF are still an important concern. The present study investigates the mass loading effect of an infiltrated silver nano-catalyst on the polarization resistance (Rp) of a screen-printed porous La0.6Sr0.4Co0.2Fe0.8O3-d cathode. The results show that Rp of LSCF cathode can be substantially reduced by as much as 75% at 650 °C after a single step infiltration of 0.6 M silver nitrate solution with a mass loading of 0.64 mg.cm-2. In addition, stable cathodic polarization resistance is observed over 50 h at 650 °C under air oxidant.
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Authors
Ali Soltanizade
Master of Science student of Metallurgy and Materials Engineering.
Alireza Babaei
Assistant Professor of Metallurgy and Materials Engineering School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
Abolghasem Ataie
Professor of Metallurgy and Materials Engineering School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran,Iran
Seyed Vahidreza Seyed Vakili
PhD candidate of Metallurgy and Materials Engineering School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran,Iran
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