naa a22 4500 510821715 CHVBK 20180411083536.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s11814-013-0144-2 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0144-2 Synthesis and applications of composite cathode based on Sm0.5Sr0.5Co3− δ for solid oxide fuel cell [Elektronische Daten] [Young Park, Haekyoung Kim] Cobaltite based perovskites, such as Sm0.5Sr0.5Co3−δ (SSC), are attractive solid oxide fuel cell (SOFC) cathodes due to their high electrochemical activity and electrical conductivity. To obtain higher fuel cell performance with smaller particles, nano-sized SSC powders were synthesized by a complex method with/without carbon black, HB170. However, during synthesis, carbon black reacted with Sr, and unfortunately formed SrCO3. To obtain pure perovskite SSC, a calcination temperature of 900 °C is needed. At 680 °C, an SOFC with SSC (calcined at 700 °C and synthesized without HB170) exhibited a higher fuel cell performance, of 0.68W·cm−2, than that with SSCHB (calcined at 900 °C and synthesized with HB170), of 0.58W·cm−2. Adding GDC for composite cathode is more effective in SSCHB porous cathodes than in SSC porous cathodes. At 680 °C, the composite cathode of SSCHB6-GDC4 exhibited the highest maximum power density of 0.72W·cm−2 which results from the combined effects of lowered charge transfer polarization and mass transfer polarization. To obtain higher fuel cell performance, optimum composition and processes are necessary. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Solid Oxide Fuel Cell nationallicence Inorganic Dispersant nationallicence Anode Supported Cell nationallicence Composite Cathode nationallicence Sm0.5Sr0.5Co3− δ nationallicence Park Young Fuel Cell Project, Research Institute of Industrial Science and Technology, 790-330, Pohang, Korea aut Kim Haekyoung School of Materials Science & Engineering, Yeungnam University, 712-749, Gyeongsan, Korea aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/11(2013-11-01), 2017-2025 0256-1115 30:11<2017 2013 30 11814 https://doi.org/10.1007/s11814-013-0144-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0144-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Park Young Fuel Cell Project, Research Institute of Industrial Science and Technology, 790-330, Pohang, Korea aut NATIONALLICENCE 700 1- Kim Haekyoung School of Materials Science & Engineering, Yeungnam University, 712-749, Gyeongsan, Korea aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/11(2013-11-01), 2017-2025 0256-1115 30:11<2017 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer