Jung, Inyong Lee, Daehee Lee, Seong Oh Kim, Dongha Kim, Joosun Hyun, Sang-Hoon Moon, Jooho 2024-01-20T11:02:04Z 2024-01-20T11:02:04Z 2021-09-05 2013-12 0272-8842 https://pubs.kist.re.kr/handle/201004/127382 La0.75Sr0.25Cr0.5Mn0.5O3-delta (LSCM) is a promising Ni-free anode material with reliable performance. LSCM retains excellent stability in both oxidizing and reducing environments at high operating temperatures, which makes it adoptable as solid oxide fuel cell (SOFC) anodes. However, the relatively inferior catalytic activity compared to Ni composite anodes limits the applicability in SOFC systems. Nanocomposite La0.75Sr0.25Cr0.5Mn0.5O3-delta-Y0.16Zr0.84O1.92 (LSCM-YSZ) anodes are investigated to improve the catalytic activity by effective dispersion of LSCM nanoparticles on stable YSZ backbones. LSCM-YSZ nanocomposite powders were synthesized via a polymerizable complex method. LSM-YSZlyttria stabilized zirconia (YSZ)vertical bar LSCM-YSZ unit cells were characterized by electrochemical impedance spectroscopy and a current interruption method. Compositional mapping analysis on the LSCM-YSZ nanocomposite anode demonstrates uniform dispersion of LSCM nanoparticles and phase connectivity between LSCM and YSZ, resulting in a lower electrode polarization resistance of 1.82 Omega cm(2) and greater peak power density of 177 mW cm(-2) at 850 degrees C. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved. English ELSEVIER SCI LTD OXIDE FUEL-CELLS COMPOSITE CATHODES METHANE OXIDATION TEMPERATURE STABILITY LSCM-YSZ nanocomposites for a high performance SOFC anode Article 10.1016/j.ceramint.2013.05.022 1 CERAMICS INTERNATIONAL, v.39, no.8, pp.9753 - 9758 CERAMICS INTERNATIONAL 39 8 9753 9758 scie scopus 000325835100159 2-s2.0-84883746972 Materials Science, Ceramics Materials Science Article OXIDE FUEL-CELLS COMPOSITE CATHODES METHANE OXIDATION TEMPERATURE STABILITY Solid oxide fuel cells Perovskite anode Nanocomposite