Lee, Jeong Myeong Kim, Yoon Gon Lee, Seung Jin Kim, Hee Su Yoon, Sung Pil Nam, Suk Woo Yoon, Soon Do Yun, Jeong Woo 2024-01-20T10:01:17Z 2024-01-20T10:01:17Z 2021-09-04 2014-05 0021-891X https://pubs.kist.re.kr/handle/201004/126855 Samarium-doped ceria (SDC) is coated onto a Ni/yttria-stabilized zirconia (Ni/YSZ) anode for the direct use of methane in solid-oxide fuel cells. Porous SDC thin layer is applied to the anode using the sol-gel coating method. The experiment was performed in H-2 and CH4 conditions at 800 A degrees C. The cell performance was improved by approximately 20 % in H-2 conditions by the SDC coating, due to the high ionic conductivity, the mixed ionic and electronic conductive property of the SDC, and the increased triple phase boundary area by the SDC coating in the anode. Carbon was hardly deposited in the SDC-coated Ni/YSZ anode. The cell performance of the SDC-coated Ni/YSZ anode did not show any significant degradation for up to 90 h under 0.1 A cm(-2) at 800 A degrees C. The porous thin SDC coating on the Ni/YSZ anode provided the electrochemical oxidation of CH4 over the whole anode, and minimized the carbon deposition by electrochemical carbon oxidation. English SPRINGER ELECTRICAL-PROPERTIES STRONTIUM-TITANATE CATALYTIC-ACTIVITY OXIDATION SOFC Carbon-tolerance effects of Sm0.2Ce0.8O2-delta modified Ni/YSZ anode for solid oxide fuel cells under methane fuel conditions Article 10.1007/s10800-014-0670-6 1 JOURNAL OF APPLIED ELECTROCHEMISTRY, v.44, no.5, pp.581 - 588 JOURNAL OF APPLIED ELECTROCHEMISTRY 44 5 581 588 scie scopus 000334178900005 2-s2.0-84899070741 Electrochemistry Electrochemistry Article ELECTRICAL-PROPERTIES STRONTIUM-TITANATE CATALYTIC-ACTIVITY OXIDATION SOFC Solid oxide fuel cell SDC coating Methane Electrochemical oxidation Carbon deposition