以无机盐和金属醇盐为前驱物,用溶胶-凝胶法制备了Li2+xLaxSi1-xO3(x=0-0.15),用IR,DTA-TG,XRD,TEM及交流阻抗等技术对样品的结构、组成相的形貌、粒径及烧结体离子导电性等进行了观测.结果表明:其固溶体形成范围是0＜x≤0.07;平均粒径为70nm;在固溶体范围内,样品电导率随掺杂量增加而增高;与传统的固相合成方法相比,该法可使样品的生成温度降低,离子导电性得到提高.
参考文献
| [1] | Raistrick I D, ho C, Huggins R A. J Electrochem Soc,1976; 10:1469 |
| [2] | Yang N R, Yu G Y. Bull Chin Ceram Soc, 1992; 11:56(杨南如,余桂郁.硅酸盐通报,1992;11:56) |
| [3] | Masquelier C, Tabuchi M, Takeuchi T. Solid State Ionics,1995; 79:98 |
| [4] | Staito Y, Asai T, Ado K, Kageyama H, Nakamura O. Solid State Ionics, 1990; 40/41:43 |
| [5] | Cui D L, Meng X H, Feng S H, Xu R R. Chemical J Chin Univ, 1994; 15:1421(崔得良,孟宪华,冯守华,徐如人.高等学校化学学报,1994;15:1421) |
| [6] | Boukamp B A. Equivalent Circuit Users Manua (ξ) Software (ver.4.51) University of Twente, the Nether lands.2nd, edn,Twente: Preston Company, 1993; 18 |
| [7] | Chen S J, Cheng J J. Bull Chin Ceram Soc, 1995; 3:41(陈树江,程继建.硅酸盐通报,1995;3:41) |
| [8] | Standard Spectra Collection. U.S.A. Sader Research Laboratories. 1980; 33-34:33683 |
| [9] | Sun G, Yang S, Zhang Z D. Chin Chem Soc, 1990; 11:45(孙纲,杨森,张祖德.化学通报,1990;11:45) |
| [10] | Seemann H. Acta Cryst, 1955; 9:278 |
| [11] | Su M Z, Xie G Y, Shen P W. Solid Chemistry and its Apply. Shanghai: Publishing of Fudan University. 1994:278(苏勉曾,谢高阳,申泮文,固体化学及其应用.上海:复旦大学出版社,1994:278) |
| [12] | Guo Z K, Yan Y M. Chin Silicate Soc, 1986; 14:319(郭祝昆,严一民.硅酸盐学报,1986;14:319) |
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