6-2-3 固体酸化物形燃料電池用A-サイト欠陥型(Pr_<0.4>)_xSr_<0.6>Co_<0.2>Fe_<0.7>Nb_<0.1>O_<3-σ>アノード材料の特性(6-2 省エネ技術・材料,Session 6 省エネルギー)
スポンサーリンク
概要
- 論文の詳細を見る
Electrochemical properties of (Pr_<0.4>)_xSr_<0.6>Co_<0.2>Fe_<0.7>Nb_<0.1>O_<3-σ> (PSCFN, x=0.9, 0.95, 1.0, 1.05 and 1.1) as cathode materials for solid oxide fuel cells were investigated. Powder samples were prepared using traditional solid sate reaction method. For all as-prepared PSCFN powders, it is found that cubic perovskite phase was formed after sintered at 1050 ℃ for 10 h. Effect of A-site nonstoichiometry on coefficient of thermal expansion, electrical conductivity, polarization resistance and cell performance were investigated. The coefficient of thermal expansion decreased and the electrical conductivity increased with the increase in A-site deficiency. AC impedance revealed that (Pr_<0.4>)_xSr_<0.6>Co_<0.2>Fe_<0.7>Nb_<0.1>O_<3-σ> (P_<0.42>SCFN, x=1.05) had better electrochemical performance than that without A-site deficiency. The maximum power density of P_<0.42>SCFN was as high as 1133 mW cm^<-2> when wet H_2 was used as fuel at 900 ℃, suggesting that PSCFN with A-site deficiency is a potential electrode material for SOFC.
- 一般社団法人日本エネルギー学会の論文
- 2013-07-29
著者
関連論文
- 4-7-1 低水素濃度領域におけるNi-CGOアノードの急速劣化現象の解明(4-7 燃料電池・改質,Session4 新エネルギー,研究発表)
- O-101 未利用バイオマス活用の地域特性評価(セッション1:資源・システム,研究発表,(口頭発表))
- 4-6-1 小型機器用PEFCスタックの開発(4-6 燃料電池・改質1,Session 4 新エネルギー)
- 1-4-1 石炭/バイオマスの水蒸気共ガス化特性の基礎実験(1-4 ガス化,Session 1 石炭・重質油等)
- 6-2-3 固体酸化物形燃料電池用A-サイト欠陥型(Pr_)_xSr_Co_Fe_Nb_O_アノード材料の特性(6-2 省エネ技術・材料,Session 6 省エネルギー)