화학공학소재연구정보센터
International Journal of Hydrogen Energy, Vol.39, No.15, 7980-7987, 2014
Cobalt-impregnated La0.75Sr0.25Cr0.5Mn0.5O3-delta anodes for solid oxide fuel cells
In this study, we will report our investigation for La0.75Sr0.25Cr0.5Mn0.5O3-delta (LSCrM) based anodes impregnated with solutions of cobalt (Co) nitrate. A YSZ supported SOFC with pure LSCrM anode and La0.7Sr0.3MnO3 (LSM) cathode exhibits the maximum power density (P-max) of 58.7 and 5.2 mW cm(-2) at 850 degrees C in dry H-2 and dry CH4. After the modification of anode with Co nitrate, the P-max reaches 196.2 mW cm(-2) in dry H-2 and 28.5 mW cm(-2) in dry CH4, about 3.34 times and 5.48 times increase, respectively. These results indicate that Co is also a potential catalyst for LSCrM anode. Moreover, the effect of impregnation amount of catalyst on the cell performance is also evaluated in this study. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.