本文以无水二氯化铝和四氯化钛为前驱体,以无水乙醇为氧供体,以铁粉、三氯化铁和乙醇铁为稳定剂,采用非水解溶胶-凝胶法制备铁稳定钛酸铝粉体.运用XRD、FT-IR和热膨胀仪等测试手段研究和探讨了铁稳定剂对低温合成钛酸铝的效果、稳定作用及其机理.结果表明:引入铁粉既不能提高钛酸铝低温合成效果也不能改善其热稳定性;三氯化铁能促进钛酸铝的低温合成,但其稳定钛酸铝的效果也不明显;乙醇铁虽不利于低温合成钛酸铝,但却能够大大提高钛酸铝的抗热分解能力.乙醇铁能与前驱体混合液中形成的铝、钛醇盐形成异质缩聚键合,致使铁能进入钛酸铝晶格形成同溶体,从而提高其热稳定性能.
参考文献
| [1] | 江伟辉,虞澎澎,刘健敏,谭训彦,彭永烽.两种钛源对钛酸铝溶胶可纺性影响的对比研究[J].人工晶体学报,2009(01):148-151,158. |
| [2] | 江伟辉,冯果,刘健敏,谭训彦,于云.溶胶-凝胶法制备钛酸铝薄膜及其抗熔盐腐蚀性能[J].人工晶体学报,2010(04):917-921. |
| [3] | 江伟辉,冯果,刘健敏,谭训彦,于云.非水解溶胶-凝胶法制备钛酸铝薄膜及其抗熔盐腐蚀性能[J].硅酸盐学报,2010(05):783-787. |
| [4] | 陈建华,陆洪彬,杨林成.钛酸铝陶瓷的热稳定性[J].材料导报,2005(z1):395-398. |
| [5] | 江伟辉,肖兴成,周健儿,马光华,顾幸勇,胡行方.不同添加剂对钛酸铝热膨胀系数影响的研究[J].无机材料学报,2000(03):437-440. |
| [6] | 江伟辉,肖兴成,周健儿,马光华,顾幸勇,胡行方.晶格常数的变化对钛酸铝热稳定性的影响[J].无机材料学报,2000(01):163-168. |
| [7] | Tawei Sun;Kaohsing;Taiwun .Magnesium Doped β-Alimium Titanate Thin Film Coating[P].US Patents.US005565245A,1996-10-15. |
| [8] | 江伟辉,魏恒勇,于云.以醇作氧供体的非水解溶胶-凝胶法制备钛酸铝凝胶的研究[J].材料导报,2007(02):134-136,145. |
| [9] | 江伟辉;冯果;刘健敏 等.非水解溶胶.凝胶工艺低温制备稳定化钛酸铝的方法[P].中国专利:CN101696030A,2010-04-21. |
| [10] | Shantha PK.;Verma AL. .RESONANCE RAMAN CHARACTERIZATION OF (OXOFERRYL)TETRAPHENYLPORPHYRIN FORMED DURING PHOTODISPROPORTIONATION OF (FE(TPP))(2)O IN A DETERGENT MICELLE AT ROOM TEMPERATURE[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,1996(10):2723-2725. |
| [11] | Parida K M;Pradhan A C;Das J et al.Synthesis and Characterization of Nano-sizod Porous Gamma-alumina by Control Precipitation Method[J].Materials Chemistry and Physics,2009,113(01):244-248. |
| [12] | Avasarala B K;TirukkovaUuri S;R0 Bojja S .Synthesis,Characterization and Photooatalytie Activity of Alkaline Earth Metal Doped Titania[J].Indian Journal of Chemistry,2010,49(09):1189-1196. |
| [13] | Vioux A .Nonhydmlytic Sol-Gel Routes to Oxides[J].Chemistry of Materials,1997,40(09):2292-2299. |
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