采用凝胶浇注法制得了Sr1-1.5xSmxTiO3(x=0.08)复合氧化物粉体,考察了Sm掺杂量、凝胶煅烧温度等对产物相组成、烧结性能及电导率等的影响.实验结果表明:干凝胶在1400℃煅烧形成了具有单一钙钛矿结构的Sr1-1.5xSmxTiO3复合氧化物粉体.烧结温度对Sr1-1.5xSmxTiO3材料的烧结致密化有明显的影响.Sm的掺入,可以明显提高SrTiO3材料的电导率.在500～850℃内,Sr1-1.5xSmxTiO3烧结体的电导率随测试温度的升高而降低.掺入4mol%Sm的烧结体在800℃下的电导率为28.8 S·cm-1.
参考文献
| [1] | Lu Y X;Laura S .[J].Journal of Power Sources,2004,135(1-2):184. |
| [2] | Gorte R J;Kim H;Vohs J M et al.[J].Journal of Power Sources,2002,106:10. |
| [3] | Minh N Q;Takahashi T.[J].Elesvier,1995:147. |
| [4] | Hernadi K;Fonseca A;Nagy J B et al.[J].Applied Catalysis A:General,2000,199:245. |
| [5] | Nakagawa N.;Kondo K.;Morimoto T.;Hatanaka K.;Kato K.;Sakurai H. .EVALUATION OF THE EFFECTIVE REACTION ZONE AT NI(NIO)/ZIRCONIA ANODE BY USING AN ELECTRODE WITH A NOVEL STRUCTURE[J].Journal of the Electrochemical Society,1995(10):3474-3479. |
| [6] | Pudmich G.;Gonzalez-Cuenca M.;Jungen W.;Zipprich W.;Tietz F.;Boukamp BA. .Chromite/titanate based perovskites for application as anodes in solid oxide fuel cells[J].Solid state ionics,2000(1/4):433-438. |
| [7] | Yoo Y;Koutcheiko S;Petric A.[A].Lucerne,Switzerland,2002:507. |
| [8] | 孙秀府,郭瑞松,李娟,赵迎珂,张君娣.Y掺杂SrTiO3阳极催化剂材料性能研究[J].电源技术,2006(04):282-284,304. |
| [9] | 肖洪地,王成建,马洪磊.稀土元素Ln对SrTiO3陶瓷介电性质的影响[J].功能材料,2003(01):78-79,82. |
| [10] | Huang Xianliang;Zhao Hailei;Shen Wei et al.[J].Journal of Physics and Chemistry of Sotias,2006,67:2609. |
| [11] | 曲昭君;于春英;李文钊 et al.[J].物理化学学报,1994,10(09):796. |
| [12] | Zha S W;Xia C R;Fang X H et al.[J].Ceramics International,2001,6:649. |
| [13] | Yin Y H;Zhu W;Xia C R et al.[J].Journal of Power Sources,2004,132:36. |
| [14] | Janney M A;Omatete O O .[P].USPatent,No.5145908,1992. |
| [15] | 吴红忠,金泰琪.添加剂对SrTiO3基复合功能陶瓷材料性能的影晌[J].江苏陶瓷,2001(01):32-36. |
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%