Preparation of Nano- MgO and Investigation of its Infrared Absorption Properties
A precipitation-pyrolysis process was developed for the synthesis of MgO nano-particles with diameter of 20-100 nm by using organic reagent, glycol, n-butanol and N,N-Dimethylacetamide, as shape and size controller. XRD and TEM were used to study on composition, morphology and size of the as prepared MgO nanoparticles. The results indicate that organic crystal controller is one of the key factors affecting the sizes and shapes of the nano MgO particles. When using glycol as a crystal controller, the dispersion of nano MgO particles is better and olive-shaped particles with sizes of 20-40 nm are prepared. When nano MgO particles are synthesized by MgCi2 and Mg(NO3)2, their particle sizes are smaller and their particles with olive shape. During chemical reaction process, Mg(OH)2 particles are already formed to be nano scale.Calcination process at the temperature of 650~(2 can change the crystal shape slightly. FTIR results show that nano MgO particles have abnormal infrared absorption behaviors compared with that of micron scale.
MgO nano-particles size and shape control infrared absorption properties
Yimin Zhu Yuexin Han Xiaoyu Wang Xu Wang
School of Resources and Civil Engineering,Northeastern University,Shenyang,Liaoning 110004,China School of Science Northeastern University,Shenyang,Liaoning 110004,China
国际会议
2008国际粉体技术与应用论坛暨全国粉体产品与设备应用技术交流大会
北京
英文
115-120
2008-04-01（万方平台首次上网日期，不代表论文的发表时间）