Study of CaTiO 3 Based Ionic Conductors for Lightweight SOFCs
2019; Institute of Physics; Volume: 91; Issue: 1 Linguagem: Inglês
10.1149/09101.1217ecst
ISSN2151-2051
AutoresKenji Suzuki, Yuna Kouchi, Tomohisa Hirota, Hiroaki Kato, Tomoaki Namioka, Hibiki Ito, Hyun-Jin Hong, Keiji Yashiro, Tatsuya Kawada, Keiichi Okai, Shinichi Hashimoto,
Tópico(s)Catalytic Processes in Materials Science
ResumoIt is reported that CaTi1-xScxO3-δ (CTS, x=0.05, 0.1) shows higher oxide ionic conductivity than conventional solid electrolyte, 8YSZ. Since CTS has also low density (c.a. 4 kg/cm3) compared with 8YSZ (c.a. 6 kg/cm3), Ni-CTS anode cermet will contribute to weight saving of SOFC stacks for vehicle applications such as airplane APU. In this study, ionic conductivity of CTS is tried to be improved by optimization of Sc dopant concentration. Additionally, Ni-CTS anode formation processing is examined by solid- state reaction method and glycine nitrate method.
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