Growth characteristics of spherical titanium oxide nanoparticles during the rapid gaseous detonation reaction

被引：10
|
作者：
Luo, Ning [1 ,2 ]
Jing, Hongwen [1 ]
Ma, Zhanguo [1 ]
Wang, Yingchao [1 ]
Sung, Guilei [3 ]
Liu, Weidong [2 ]
机构：
[1] China Univ Min & Technol, Sch Mech & Civil Engn, State Key Lab Geomech & Deep Underground Engn, Xuzhou 221116, Peoples R China
[2] Univ New S Wales, Sch Mech & Mfg Engn, Lab Precis & Nano Proc Technol, Sydney, NSW 2052, Australia
[3] China Inst Ind Relat, Dept Safety Engn, Beijing 100048, Peoples R China
来源：
PARTICUOLOGY | 2016年 / 26卷
基金：
中国国家自然科学基金;
关键词：
Gaseous phase detonation chemistry; Chapman-Jouguet theory; Kruis model; Particle growth characterization; NANOSIZED TIO2; PARTICLES; EVOLUTION; MODEL;
D O I：
10.1016/j.partic.2015.11.002
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The nanosize grain growth characteristics of spherical single-crystal titanium oxide (TiO2) during the rapid gaseous detonation reaction are discussed. Based on the experimental conditions and the Chapman-Jouguet theory, the Kruis model was introduced to simulate the growth characteristics of spherical TiO2 nanoparticles obtained under high pressure, high temperature and by rapid reaction. The results show that the numerical analysis can satisfactorily predict the growth characteristics of spherical TiO2 nanoparticles with diameters of 15-300 nm at different affecting factors, such as concentration of particles, reaction temperature and time, which are in agreement with the obtained experimental results. We found that the increase of the gas-phase reaction temperature, time, and particle concentration affects the growth tendency of spherical nanocrystal TiO2, which provides effective theoretical support for the controllable synthesis of multi-scale nanoparticles. (C) 2016 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：102 / 107
页数：6
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