在常压、110℃用浓LiOH水溶液和粉末TiO2(锐钛矿)反应的方法, 合成了岩盐型LiTiO2, 并采用TEM、XRD、XPS、TG/DTG等手段对岩盐型LiTiO2进行了表征. 结果表明, 采用该方法制得的岩盐型LiTiO2为纳米颗粒状的非化学计量物质, 在≤500℃其晶型是稳定的, 在室温下它有较强的吸水性.
Rock salt-type LiTiO2 was prepared by treating TiO2(anatase) powder with concentrated aqueous solution of LiOH at 110℃ under atmospheric pressure and characterized by means of TEM, XRD, XPS and TG/DTG. The results show that rock salttype LiTiO2 prepared by this method is a nanosized nonstoichiometric compound. Its crystal form is stable at annealing temperature ≤500℃. In air ambience, the rock salt-type LiTiO2 possesses stronger water absorption.
参考文献
| [1] | 钟维烈. 铁电物理学. 北京: 科学出版社, 1998. 24--25. [2] Hayward S A, Salje E K H. J. Phys: Condens. Matter, 2002, 14: 599--604. [3] Ishidate T, A be S. Phys. Rev. Lett., 1997, 78: 2397--2402. [4] Perez Mato J M, Salje E K H. J. Phys: Condens. Matter, 2000, 12: 29--34. [5] Hayward S A, Salje E K H. J. Phys: Condens. Matter, 1998, 10: 1421--1430. [6] Hayward S A, Redfern S A T, Stone Howard J, et al. Z. Kristallogr., 2005, 220: 735--739. |
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%