| 爆轰法制备纳米TiO2及其参数控制 |
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| 引用本文： | 李晓杰,陈涛,徐兆龙,李瑞勇,曲艳东,王占磊.爆轰法制备纳米TiO2及其参数控制[J].高压物理学报,2006,20(2):122-126. |
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| 作者姓名： | 李晓杰 陈涛 徐兆龙 李瑞勇 曲艳东 王占磊 |
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| 作者单位： | 1. 大连理工大学工业装备结构分析国家重点实验室,辽宁,大连,116023
2. 中国石油天然气股份有限公司大连石化分公司有机合成厂,辽宁,大连,116031 |
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| 基金项目： | 国家自然科学基金(10172025)，辽宁省自然科学基金(2004-40) |
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| 摘 要： | 采用偏钛酸与炸药混合进行爆轰合成，制备出晶粒尺寸在10 nm到60 nm之间的纳米TiO2粉末。结合XRD、TEM、BET等表征手段，研究了纳米TiO2的制备参数与其晶粒尺寸和晶相结构之间的关系。发现当炸药含量增加时，产物晶粒尺寸增大，同时晶相结构随炸药量的增加逐渐由低温的锐钛矿型和板钛矿型向高温的金红石型转变，爆轰温度在这种转变过程中起着极为重要的作用。
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| 关 键 词： | 爆轰 纳米TiO2 晶粒尺寸 晶型转变 |
| 文章编号： | 1000-5773（2006）02-0122-05 |
| 收稿时间： | 2005-07-04 |
| 修稿时间： | 2005-10-25 |
Explosive Synthesis of Nanometer Titanium Dioxide and Parameter Control |
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| LI Xiao-Jie,CHEN Tao,XU Zhao-Long,LI Rui-Yong,QU Yan-Dong,WANG Zhan-Lei.Explosive Synthesis of Nanometer Titanium Dioxide and Parameter Control[J].Chinese Journal of High Pressure Physics,2006,20(2):122-126. |
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| Authors: | LI Xiao-Jie CHEN Tao XU Zhao-Long LI Rui-Yong QU Yan-Dong WANG Zhan-Lei |
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| Institution: | 1. Department of Engineering Mechanics of Dalian University of Technology, State Key Laboratory of Structural Analysis for Industrial Equipment ,Dalian 116023 ,China; 2. Organic Synthetic Plant of Dalian Pertrochemical Company Limited Petrochina ,Dalian 116031 ,China |
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| Abstract: | Some TiO_2 nanoparticle samples with size range from 10 nm to 60 nm were prepared by(explosive) synthesis method.The influence of the preparation parameters on the size and the crystalline phase of the TiO_2 crystallite were studied by means of X-ray diffraction(XRD) technique,SEM,TEM and BET.With these characterizing methods,it indicates that the explosive temperature plays a very important role in the crystalline phase transformation.With increasing the proportion of detonator,the size of TiO_2 crystallite increased,and the crystalline phase transforms from the low temperature phases of anatase and brookite to the high temperature phase of rutile. |
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| Keywords: | explosive nanometer TiO_2 crystalline size crystalline phase transformation |
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