采用直流四探针法和两端子电子阻塞电极交流阻抗谱研究了GNP法制备La0.6Sr0.4Co1-yFeyO3陶瓷的电子-离子混合导电性能.在室温~900℃范围内,La0.6Sr0.4CoO3的电子电导率随温度的升高而单调降低,其它样品的电子电导率随温度的升高在600℃附近达到最大值.La0.6Sr0.4Co1-yFeyO3陶瓷的氧离子电导率随温度的升高而增加.在相同温度下,随着Co/Fe比例的增加,La0.6Sr0.4Co1-yFeyO3陶瓷的电子电导率和氧离子电导率增加,电子导电活化能和离子导电活化能降低.氧离子迁移数随温度的升高而增加,随Co/Fe比例的增加而降低.
参考文献
[1] | Teraoka Y, Zhang H M, Yamazoe N. Mater. Res. Bull., 1988, 23 (1): 51-58. |
[2] | Huijmans J P P, Van Berkel F P F, Christie G M. J. Power Source, 1998, 7: 107-110. |
[3] | Tsai C Y, Dixon A G, Ma Y H, et al. J. Am. Ceram. Soc., 1998, 81 (6): 1437-1444. |
[4] | Chen C C, Nasrallah M M, Anderson H U. J. Electrochem. Soc., 1995, 142 (2): 491-496. |
[5] | Stevenson J W, Armstrong T R, Carneim R D, et al. J. Electrochem. Soc., 1996, 143 (9): 2722-2729. |
[6] | Elshof J E, Lanknorst M H R, Bouwmeester H J M. Solid State Ionics, 1997, 99: 15-22. |
[7] | Tai L W, Nasrallah M M, Anderson H U, et al. Solid State Ionics, 1995, 76: 259-271. |
[8] | Tai L W, Nasrallah M M, Anderson H U, et al. Solid State Ionics, 1995, 76: 273-289. |
[9] | 黄端平,徐庆等(HUANG Duan-Ping,et al).无机材料学报(Journal of Inorganic Materials),2003,18(5):1039-1044. |
[10] | Shi L, Tin K C, Wong N B. J. Mater. Sci., 1999, 34: 3367-3374. |
[11] | Jamnik J. Solid State Ionics, 2003, 157: 19-28. |
[12] | Zview(Ver.2.1). Impedance/Gain phase graphics and analysis software, Scribner Associates, 1994. |
[13] | 邵宗平,熊国兴,等(SHAO Zhong-Ping,et al).催化学报(Chinese Journal of Catalysis),2000,21(5):500-504. |
[14] | Lankhorst M H R, Elshof J E ten. J. Solid State Chem., 1997, 130: 302-310. |
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