【作者】 郑文君； 秦清；

【Author】 Wenjun Zheng;Qing Qin;Department of Chemistry,Key Laboratory of Advanced Energy Materials Chemistry(MOE),and TKL of Metal and Molecule-Based Materials Chemistry,College of Chemistry,Nankai University;Collaborative Innovation center of Chemical Science and Engineering(Tianjin),Nankai University;

【机构】 南开大学化学院先进能源材料化学教育部重点实验室,天津市金属及分子基材料化学重点实验室； 天津化学化工协同创新中心；

【摘要】 离子液体是一种新型绿色介质,被广泛地应用于无机合成领域。系统而科学地研究离子液体的作用机制是该领域的核心科学问题。我们组采用理论计算与实验相结合的方法对离子液体的作用机制进行了初步的研究并取得了一些进展。离子液体的作用机制可分为阳离子吸附模式和阴离子吸附模式。对于阳离子吸附模式而言,要遵循"几何匹配原则"。咪唑阳离子选择性地吸附在目标产物的特定晶面从而可实现对产物相和形貌的调控。另外,溶液中粒子表面所带电荷是由体系的pH值和粒子自身的等电点共同决定的,而粒子表面所带电荷不同将直接决定离子液体阳离子优先吸附或者阴离子优先吸附。这一发现将为理解和设计具有特殊官能团的离子液体从而实现控制合成形貌新颖、性能良好的无机纳米材料提供科学依据。更多还原

【Abstract】 Ionic Liquids(ILs) have been widely used as a new "green" media in inorganic synthesis.The effect mechanism of ILs is the core scientific problem in this field.Our group has made a preliminary study and achieved some progress.The effect mechanisms of ILs can be divided into cationic-or anionic-dominant effect models.As for the cationic-dominant model, "geometric matching principle" would be followed.The imidazolium cations selectively adsorb on the special crystal facets to realize the control of the phase and morphology of target products.In addition,the types of charge on the surface of particles that codetermined by the pH value of solution and isoelectric point of particles will directly leads to whether the cations or anions of ILs preferential adsorption.This find will provide scientific basis for understanding and design of ILs to realize control synthesis of inorganic nanomaterials with novel morphologies and improved properties.更多还原