用柠檬酸络合法制备超细的钙钛矿型结构的固体氧化物燃料电池阴极材料La_(0.7)Sr_(0.2)Co_(0.1)CuO_(3-σ)(LSCC).选用合适的反应条件和煅烧温度制得所需要的材料后,用DSC-TG、XRD、SEM等对粉体进行物相测定和形貌观察;选用不同温度煅烧前驱体,得到不同比表面积的粉体材料,通过半干法工艺成型LSCC阴极材料并测试它在不同温度条件下的电性能.结果表明,溶胶凝胶-高温自燃烧法能制备出超细纯相的LSCC阴极材料,且该阴极材料在中温条件下使用具有良好的导电性能(不低于150 S/cm)和输出功率(0.85 W/cm~2)和较低的活化能(112.1 kJ/mol).
Perovskite-type ultrafine La_(0.7)Sr_(0.2)Co_(0.1)CuO_(3-σ) powders used as cathode materials for intermediate temperature solid oxide fuel cell (IT-SOFC) were directly synthesized by a citrate process and the microstructure was observed with scanning electron microscopy (SEM) and analyzed by DSC-TG、XRD. Baking the precursor at different temperature in order to get the powder with different specific surface area. Using semi-dry method to sharp the LSCC and test electrical conductivity in intermediate temperature. The results indicate that high purity ultrafine LSCC powder can be synthesis by citrate process and self-combusting method and it shows good electrical conductivity(more than 150 S/cm), output power(0.85 W/cm~2 and activation energy(112.1 kJ/mol)in suitably temperature.
参考文献
| [1] | Hyoup Je Cho;Gyeong Man Choi .Effect of milling methods on performance of Ni-Y_2O_3-stabilized ZrO_2 anode for solid oxide fuel cell[J].Journal of Power Sources,2008(1):96-101. |
| [2] | e. Boehm;J. -M. Bassat;M. C. Steil;P. Dordor;F. Mauvy;J. -C. Grenier .Oxygen transport properties of La_2Ni_(1-x)Cu_xO_(4+δ) mixed conducting oxides[J].Solid state sciences,2003(7):973-981. |
| [3] | 龚明光,陆丽华,金江,张华.低温自燃烧法合成La2NiO4阴极材料及其性能[J].硅酸盐通报,2009(01):38-43. |
| [4] | 刘文刚,许云华,杨蓉,任冰.锂离子电池正极材料Li2Mn0.95Mg0.05SiO4的合成和电化学性能[J].硅酸盐通报,2009(03):464-467. |
| [5] | 亓淑艳,郭丽琴,冯静,石兆辉,张密林,宁兆娟.钙钛矿型复合氧化物La1-xSrxMnO3和（La0.7Sr0.3）1-yKyMnO3的结构及磁性研究[J].稀土,2008(01):23-27. |
| [6] | 李嵩,孙明涛,季世军,孙俊才.新型阴极材料Ba0.5Sr0.5CO0.8Fe0.2O3-σ制备与性能研究[J].无机化学学报,2005(08):1265-1269. |
| [7] | 郑敏章,刘晓梅,朱成军,徐丹,孙敬姝,苏文辉.复合阴极材料La1-xSrxCuO3-δ-SDC的制备及电学性能[J].高等学校化学学报,2006(11):2030-2033. |
| [8] | 孙丽萍,霍丽华,赵辉,Christophe Pijolat.中温固体氧化物燃料电池阴极材料Sm2-xCexCuO4的制备与性能研究[J].无机化学学报,2007(09):1545-1549. |
| [9] | 吕洪,赵斌元,孙刚,吴宇骥,胡克鳌.新型中温固体氧化物燃料电池阴极材料Fe掺杂Sm0.5Sr0.5CoO3性能研究[J].无机化学学报,2006(11):1967-1972. |
| [10] | 孙丽萍,霍丽华,赵辉,Christophe Pijolat.中温固体氧化物燃料电池阴极材料Sm2-xCexCuO4的制备与性能研究[J].无机化学学报,2007(09):1545-1549. |
| [11] | 田长安,刘俊亮,蔡俊,曾燕伟.溶胶凝胶-自燃烧法合成La9.33Si6O26超细粉体[J].无机材料学报,2008(01):77-81. |
| [12] | 李勇,邵刚勤,段兴龙,王天国.固体氧化物燃料电池电解质材料的研究进展[J].硅酸盐通报,2006(01):42-45,104. |
| [13] | 李景新,温兆银,许晓雄,顾中华,徐孝和.柠檬酸络合法制备La0.56Li0.33TiO3锂离子导电材料[J].无机材料学报,2007(03):432-436. |
| [14] | 黄端平,徐庆,陈文,张枫.新型中温固体氧化物燃料电池阴极材料的研究[J].陶瓷学报,2006(03):275-280. |
| [15] | 毛宗强,黄建兵,王诚,刘志祥.低温固体氧化物燃料电池研究进展[J].电源技术,2008(02):75-79. |
| [16] | 高建峰,郎莹,夏长荣,孟广耀.La0.7Sr0.3FeO3-Sm0.2Ce0.8O2复合阴极制备及性能研究[J].材料研究学报,2005(01):72-77. |
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