采用微乳液法,以La2O3、Sr(NO3)2、CuO为原料,制备理论配比为La2-2xSr2xCu2yO3±z的超微粒子.通过X-衍射、扫描电镜和交流阻抗技术对粉体进行表征.在x=0.07和x=0.10时,经600℃下灼烧后,分别得到La1.86Sr0.14CuO4.08和(La0.9Sr0.1)2CuO4固熔体,它们的晶粒尺寸都小于60nm;在600℃下的电导率分别为6.5×10-3 S·cm-1和5.7×10-3 S·cm-1.
参考文献
| [1] | Sabibzada M;Steele B C H;Zheng K .Development of solid oxide fuel cell based on a Ce(Gd)O2-x electrolyte film for intermediate temperature operation[J].Catalysis Today,1977,38:459-466. |
| [2] | Takahashi T;Imahara N .Ionic conductivity in perovskete-type oxlid solid solution and its application to solid electrolyte fuel cell[J].Energy Conversion,1971,11:105-111. |
| [3] | 中国稀土学会.中国稀土科技进展[M].北京:冶金工业出版社,2000:677-681. |
| [4] | Huang W.;Greenblatt M.;Shuk P. .PROPERTIES OF SOL-GEL PREPARED CE1-XSMXO2-X/2 SOLID ELECTROLYTES[J].Solid state ionics,1997(1/2):23-27. |
| [5] | Raistrick L D;Huggins R A .Ionic conductivity of some lithium litium silicate and alumin osilicates[J].Journal of the Electrochemical Society,1976,123(10):1496-1476. |
| [6] | Chavarria J;Quintana P;Huanosta A .Electrical properical properties of solid solution Li4-3xLnxSiO4[J].Solid State Ionics,1996,83:245-248. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%