为了解决固体氧化物燃料电池(SOFC)陶瓷连接材料的低成本制备难题,设计了与LaCrO3基连接材料和Ni基阳极均具有良好烧结匹配性能的新型复合材料NiO/ La0.7Ca0.3Cr0.97O3-δ (LCC97)作为管式SOFC的支撑体.详细研究了NiO含量(5wt％、25wt％、50wt％、75wt％)对复合支撑体的烧结性能、微观组织、孔隙率、电导性能、热膨胀系数等的影响,结果表明:LCC97与NiO具有优良的烧结和化学匹配性能,NiO/LCC97(1∶1,wt％)具有最优的综合性能.以其为支撑体,采用浆料浸渍法制备LCC97湿膜,1400℃空气条件下共烧,获得了致密LCC97连接材料薄膜.
参考文献
| [1] | Liu Q,Dong X H,Xiao G L,et al.A novel electrode material for symmetrical SOFCs. Advanced Materials, 2010, 22(48):5478-5482. |
| [2] | BI Lei,TAO Ze-Tian,PENG Ran-Ran,et al.Research progress in the electrolyte materials for protonic ceramic membrane fuel cells.Journal of Inorganic Materials,2010,25(1):1-7. |
| [3] | GUO Xiao-Xia,ZHENG Wen-Jun,MENG Guang-Yao.State of interconnects for solid oxide fuel cells (SOFC).Journal of Functional Materials,2000,31(1):23-25. |
| [4] | Zhu W Z,Deevi S C.Development of interconnect materials for solid oxide fuel cells.Materials Science and Engineering,2003,A348(1/2):227-243. |
| [5] | Wang S L,Lin B,Chen Y H,et al.Low temperature sintering ability and electrical conductivity of SOFC interconnect material La0.7Ca0.3Cr0.97O3.Journal of Alloys and Compounds, 2009,468(1/2):499-504. |
| [6] | Wang S L,Liu M F,Dong Y C,et al.Influence of Cr deficiency on sintering character and properties of SOFC interconnect material La0.7Ca0.3Cr1-xO3-δ. Materials Research Bulletin, 2008,43(10):2607-2616. |
| [7] | Subhash C.Singhal,Kevin Kendall ed.,韩敏芳,蒋先锋 译.High Temperature Solid Oxide Fuel Cells:Fundamentals,Design and Applications.北京:科学出版社,2007:180-185. |
| [8] | Kuo L J H,Vora S D,Singhal S C.Plasma spraying of lanthanum chromite films for solid oxide fuel cell interconnection application.Journal of the American Ceramic Society,1997,80(3):589-593. |
| [9] | Liu M F,Ding D,Peng R R,et al.YSZ-based SOFC with modified electrode/electrolyte interfaces for operating at temperature lower than 650℃.Journal of Power Sources,2008,180(1):215-220. |
| [10] | Liu M F,Ding D,Zhao F,et al.High-performance cathodesupported SOFCs prepared by a single-step co-firing process.Journal of Power Sources,2008,182(2):585-588. |
| [11] | Larry A C,Liu J,Jeffry W S,et al.Phase transitions and transient liquid-phase sintering in calcium-substituted lanthanum chromite.J.Am.Ceram.Soc.,1997,80(8):2109-2120. |
| [12] | Chakraborty A,Basu R N,Maiti H S.Low temperature sintering of La(Ca)CrO3 prepared by an autoignition process.Materials Letters,2000,45(3/4):162-166. |
| [13] | Bao W T,Guan H M,Cheng J H.A new anode material for intermediate solid oxide fuel cells.Journal of Power Sources,2008,175(1):232-237. |
| [14] | Sakai N,Yokokawa H,Horita T,et al.Lanthanum chromite-based interconnects as key materials for SOFC stack development.International Journal of Applied Ceramic Technology,2004,1(1):23-30. |
| [15] | Fergus J W.Lanthanum chromite-based materials for solid oxide fuel cell interconnects.Solid State Ionics,2004,171(1/2):1-15. |
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