| Low Temperature Preparation of Ceria Solid Solutions Doubly Doped with Rare-Earth and Alkali-Earth and Their Properties as Solid Oxide Fuel Cells |
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| 引用本文： | 任引哲,蒋凯,王海霞,孟健,苏锵. Low Temperature Preparation of Ceria Solid Solutions Doubly Doped with Rare-Earth and Alkali-Earth and Their Properties as Solid Oxide Fuel Cells[J]. 中国稀土学报(英文版), 2003, 21(4) |
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| 作者姓名： | 任引哲 蒋凯 王海霞 孟健 苏锵 |
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| 作者单位： | Chemistry & Environmental Science College，Chemistry & Environmental Science College，Chemistry & Environmental Science College，The Key Laboratory of Rare Earth Chemistry and Physics，The Key Laboratory of Rare Earth Chemistry and Physics Henan Normal University，Xinxiang 453002，China，Chemistry Department，Shanxi Normal University，Linfen 041004，China，Henan Normal University，Xinxiang 453002，China，Henan Normal University，Xinxiang 453002，China，Chanchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022，China，Chanchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022，China |
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| 基金项目： | ProjectsupportedbytheExcellentYouthScienceFoundationofHenanProvince(0012)andtheStateKeyProjectofFundamentalResearch (G19980 613 1) |
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| 摘 要： | Solidoxidefuelcells (SOFCs)haveseveraldis tinctadvantages ,e .g .,highenergyconversioneffi ciency ,wideadaptabilitytofuels ,theusageofnon preciousmaterials ,noliquids ,nocorrosions ,modularconstructionandmuchlowerproductionofNOx,SOxandnoise .Therefore ,theyreceiveincreasingatten tion[1,2 ] .AtypicalSOFCwhichutilizesyttria stabi lizedzirconia (YSZ)astheelectrolyterequireshighoperationtemperaturesuchas 10 0 0℃togainhighe noughionicconductivity .Loweringtheoperationtem peratureto 80 0℃wou…
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Low Temperature Preparation of Ceria Solid Solutions Doubly Doped with Rare-Earth and Alkali-Earth and Their Properties as Solid Oxide Fuel Cells |
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| Ren Yinzhe ,,Jiang Kai ,Wang Haixia ,Meng Jian ,Su Qiang. Low Temperature Preparation of Ceria Solid Solutions Doubly Doped with Rare-Earth and Alkali-Earth and Their Properties as Solid Oxide Fuel Cells[J]. Journal of Rare Earths, 2003, 21(4) |
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| Authors: | Ren Yinzhe Jiang Kai Wang Haixia Meng Jian Su Qiang |
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| Affiliation: | Ren Yinzhe 1,2,Jiang Kai 1*,Wang Haixia 1,Meng Jian 3,Su Qiang 3 |
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| Abstract: | A series of solid electrolytes, (Ce0.8Ln0.2)1-xMxO2-δ (Ln= La, Nd, Sm, Gd, M:Alkali-earth), were prepared by amorphous citrate gel method. XRD patterns indicate that a pure fluorite phase is formed at 800 ℃. The electrical conductivity and the AC impedance spectra were measured. XPS spectra show that the oxygen vacancies increase owing to the MO doping, which results in the increase of the oxygen ionic transport number and conductivity. The performance of ceria-based solid electrolyte is improved. The effects of rare-earth and alkali-earth ions on the electricity were discussed. The open-circuit voltages and maximum power density of planar solid oxide fuel cell using (Ce0.8Sm0.2)1-0.05Ca0.05O2-δ as electrolyte are 0.86 V and 33 mW*cm-2, respectively. |
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| Keywords: | ceria solid electrolyte amorphous citrate gel method impedance spectra solid oxide fuel cell rare earths |
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