调控纳微尺度分子组装的装置  

Instrumentation for Nanoscale Molecular Assembly

作　　者：杨国平 吴小峰 黄科科[2] 刘坤[1] 陈焕文[1] 冯守华[2] YANG Guo-ping;WU Xiao-feng;HUANG Ke-ke;LIU Kun;CHEN Huan-wen;FENG Shou-hua(Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation,East China University of Technology,Nanchang 330013,China;State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,Jilin University,Changchun 130012,China)

机构地区：[1]东华理工大学,江西省质谱科学与仪器重点实验室,江西南昌330013 [2]吉林大学无机合成与制备化学国家重点实验室,吉林长春130012

出　　处：《质谱学报》2020年第2期191-200,I0008,共11页Journal of Chinese Mass Spectrometry Society

基　　金：国家自然科学基金(21427802)资助。

摘　　要：分子间电子云共享机制决定分子间作用力强弱(化学键形成与否)。据此原理,设计研制了能对纳微尺度分子组装过程进行调控的新型仪器装置。创新性的将激光粒度分析、高速成像系统等可视化监测手段集成到该仪器装置中,实现电极化反应及产物形成过程的实时在线监测,记录去溶剂化过程的特征。研究分子的本质属性(如分子结构、极性、挥发性、电负性)、共存基体(如溶剂、其它共存物质)、环境参数(如温度、压力、距离、电场)对不同粒子(如中性分子、正离子、负离子)组装过程的影响及能量相关的动力学过程。目前,已实现了极稀NaCl溶液快速可控结晶、纳米金形貌尺寸调控、Pd/TiO2等纳米线阵列及ZnFe2O4等薄膜的制备,在无机功能材料的结构合成与制备中展示了良好的发展前景。The mechanism of intermolecular electronic cloud sharing determines the strength of intermolecular interaction(chemical bond formation). According to this mechanism, a new instrumental device for regulating the nanoscale molecular assembly process was designed and developed. Visual monitoring methods such as laser particle size analysis and high-speed imaging systems are innovatively integrated into the instrument, realize real-time online monitoring of the electrodelation reaction, product formation process and recording the characteristics of the desolvation process. Study the effects of essential properties of molecules(such as molecular structure, polarity, volatility, electron-negativity), coexisting substrates(such as solvents, other coexisting materials), and environmental parameters(such as temperature, pressure, distance, electric field) on the assembly process of different particles(such as neutral molecules, positive ions, negative ions), and energy-related dynamics. At present, the rapid controllable crystallization of ultra-dilute NaCl solution, the morphology and size adjustment of nano-gold, the preparation of nanowire arrays such as Pd/TiO2 and the films of ZnFe2O4, and so on, have been achieved. It has shown good development prospects in the structural synthesis and preparation of inorganic functional materials.

关 键 词：分子间作用机制 纳微尺度 电子云调控 可视化监控 

分 类 号：O657.63[理学—分析化学]