| 纳米钛酸钡生成的热分解机理 |
| |
| 引用本文： | 李青莲,陈寿田,姚朴,魏国,曲永和. 纳米钛酸钡生成的热分解机理[J]. 物理化学学报, 2000, 16(2): 170-174. DOI: 10.3866/PKU.WHXB20000214 |
| |
| 作者姓名： | 李青莲 陈寿田 姚朴 魏国 曲永和 |
| |
| 作者单位： | State Key Laboratory of Electrical Insulation for Powr Equipment of Xi'an Jiaotong University,Xi'an 710049,Shaanxi Applied Physical Chemistry Institute,Xi'an 710061 |
| |
| 摘 要： | 钛酸钡作为重要的铁电材料 ,多年来一直被研究者们所关注．传统方法制备钛酸钡大多采用固相法或草酸盐法得到微米级基料．随着纳米材料研究与应用的发展 ,溶胶 凝胶技术成为制备各种金属氧化物纳米材料的较普遍方法．溶胶 凝胶法制备纳米钛酸钡就是其中之一．该法一般采用钛的有机醇盐与钡盐反应生成溶胶 ,然后形成凝胶 ,再以凝胶为先体进行热处理制得纳米钛酸钡．虽然已有人对溶胶 凝胶技术制备纳米钛酸钡进行了研究 ,并对所得产物进行了表征［１，２］，但尚无人对该方法中凝胶的热分解过程作详细的研究．因凝胶的热分解过程对钛酸钡纳…
|
| 关 键 词： | 纳米钛酸钡 溶胶-凝胶 动力学 活化能 |
| 收稿时间： | 1999-03-08 |
| 修稿时间： | 1999-03-08 |
Thermal Decomposation Mechanism of the Nano-BaTiO3 Formation |
| |
| Li Qinglian,Chen Shoutian,YAO Pu,Wei Guo,Qu Yonghe. Thermal Decomposation Mechanism of the Nano-BaTiO3 Formation[J]. Acta Physico-Chimica Sinica, 2000, 16(2): 170-174. DOI: 10.3866/PKU.WHXB20000214 |
| |
| Authors: | Li Qinglian Chen Shoutian YAO Pu Wei Guo Qu Yonghe |
| |
| Affiliation: | State Key Laboratory of Electrical Insulation for Powr Equipment of Xi'an Jiaotong University,Xi'an 710049|Shaanxi Applied Physical Chemistry Institute,Xi'an 710061 |
| |
| Abstract: | Thermal decomposition reaction mechanism of the precursor gel made by sol gel process for nano crystalline BaTiO3 was studied by TG DTG and FTIR techniques.The reaction proceeded in three stages:solvents removing,organic ligands decomposing,and amorphous solid BaTiO3 forming.The differential and intergral mechanism functions and activation energy for the third stage were obtained by calculation and comparson. |
| |
| Keywords: | Nano-BaTiO3 Sol-gel Decomposing kinetics Activation energy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
|
点击此处可从《物理化学学报》下载全文 |
|
