湖南大学学报(自然科学版)2016,Vol.43Issue(12):37-43,7.
PAH模板调控六棱片状碳酸铈形成机理的研究∗
Study on Formation Mechanism of Hexagonal Flake Cerium Carbonate under the Regulation of PAH Template
摘要
Abstract
Taking poly (vinyl chloride)(PAH)as a template agent,(NH4 )2 CO3 as a precipitant,ceri-um carbonate crystals of special morphology were synthesized by using a liquid phase method.The mor-phology of cerium carbonate with different reaction time and structure of cerium carbonate crystals were characterized by the techniques of laser confocal microscope,scanning electron microscope,Fourier trans-form infrared spectroscopy and X-ray diffraction.The results show that under the action of PAH,the morphology of cerium carbonate was gradually transformed into hexagonal flake from initial rodlike,and this process was related with the orientation adsorption of PAH to the different crystal faces of cerium car-bonate.Meanwhile,the electrostatic adsorption process of PAH and crystal faces of the cerium carbonate materials were also simulated by material studio software,thus revealing the formation mechanism of PAH template regulated cerium carbonate morphology.关键词
模板剂/聚烯丙基氯化铵/调控/吸附/六棱片状Key words
template agent/poly(vinyl chloride)/regulation/adsorption/hexagonal flake分类
矿业与冶金引用本文复制引用
胡艳宏,段志雄,李梅,柳召刚,王觅堂,张晓伟..PAH模板调控六棱片状碳酸铈形成机理的研究∗[J].湖南大学学报(自然科学版),2016,43(12):37-43,7.基金项目
国家自然科学基金资助项目(201066010,21666209),National Natural Science Foundation of China(201066010,21666209) (201066010,21666209)
教育部创新团队项目(IRT1065) (IRT1065)
内蒙古自然科学基金资助项目(2016MS0223) (2016MS0223)