Choi, Yun-Gyeom Park, Jun-Young Song, Huesup Kim, Hae-Ryoung Son, Ji-Won Lee, Jong-Ho Je, Hae-June Kim, Byung-Kook Lee, Hae-Weon Yoon, Kyung Joong 2024-01-20T12:31:35Z 2024-01-20T12:31:35Z 2021-09-05 2013-05 0272-8842 https://pubs.kist.re.kr/handle/201004/128106 Intermediate-temperature solid oxide fuel cells (SOFCs) based on gadolinia-doped ceria (GDC) electrolyte were successfully fabricated. The cells were composed of Ni-GDC anode substrate, Ni-GDC anode functional layer, GDC electrolyte, (La0.8Sr0.2)CoO3 (LSC)-GDC cathode functional layer, and LSC cathode current collector. Anode substrates were fabricated by die compaction of granules prepared by spray drying process, and poly(methyl methacrylate) (PMMA) was employed as a pore former for rapid transport of reactant and product gases across the thick anode. The shape and the distribution of pores in the anode substrate were significantly affected by the properties of suspension in spray drying process, and a uniform and interconnected pore structure was obtained by increasing solids loading due to reduced phase separation. High solids loading also improved thermal compatibility between the anode and the electrolyte in a co-firing process, resulting in reduced micro-defects in the electrolyte. Substantial reduction of anode concentration polarization as well as increased open circuit voltage was measured in cell test, and the maximum power density of 550 mW cm(-2) was obtained with humidified H-2 as fuel and air as oxidant at 650 degrees C. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved. English ELSEVIER SCI LTD FLUE-GAS PURIFICATION ELECTROCHEMICAL-CELLS SOFC ANODE PERFORMANCE FABRICATION DENSIFICATION ELECTROLYTE CERAMICS CATHODES Microstructure-polarization relations in nickel/gadolinia-doped ceria anode for intermediate-temperature solid oxide fuel cells Article 10.1016/j.ceramint.2012.11.020 1 CERAMICS INTERNATIONAL, v.39, no.4, pp.4713 - 4718 CERAMICS INTERNATIONAL 39 4 4713 4718 scie scopus 000318129100161 2-s2.0-84874666173 Materials Science, Ceramics Materials Science Article FLUE-GAS PURIFICATION ELECTROCHEMICAL-CELLS SOFC ANODE PERFORMANCE FABRICATION DENSIFICATION ELECTROLYTE CERAMICS CATHODES A. Suspensions B. Porosity D. CeO2 E. Fuel Cells