原位气/液或液/液界面分子的动态行为表征技术进展  

In situ characterization of dynamic molecular behaviours at gas/liquid or liquid/liquid interfaces

作　　者：樊漪 陈思桐 侯旭[1,2,3] Yi Fan;Sitong Chen;Xu Hou(College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China;State Key Laboratory of Physical Chemistry of Solid Surfaces,Xiamen University,Xiamen 361005,China;Research Institute for Biomimetics and Soft Matter,Fujian Provincial Key Laboratory for Soft Functional Materials Research,College of Physical Science and Technology,Xiamen University,Xiamen 361005,China)

机构地区：[1]厦门大学化学化工学院,厦门361005 [2]厦门大学固体表面物理化学国家重点实验室,厦门361005 [3]厦门大学物理科学与技术学院,厦门361005

出　　处：《科学通报》2024年第7期878-890,共13页Chinese Science Bulletin

基　　金：国家自然科学基金(52025132,T2241022,21975209);福建省自然科学基金(2022J02059);高等学校学科创新引智计划(B17027,B16029);嘉庚创新实验室科技项目(RD2022070601);新基石科学基金;中国博士后科学基金(2023M732931)资助。

摘　　要：气/液和液/液界面在生产生活中无处不在,一直以来都是动态表界面研究领域的热点.为了更深入理解表界面分子结构、分子运动行为模式以及界面动态变化机制,发展原位界面分子的动态行为表征技术将有助于实现动态表界面的实际应用.本文综述了原位气/液和液/液界面分子的动态行为表征技术所取得的一些研究成果.首先介绍了动态表界面分子的结构和动态行为模式特性;然后重点介绍了宏观和分子层面的动态表界面表征技术的进展,包括新型的表征技术;最后,综合分析了当前领域中存在的问题和发展方向,希望为未来表征技术的开发与应用奠定基础.Gas/liquid and liquid/liquid interfaces,with their unique dynamic molecular behaviours such as high molecular reactivity,specific molecular enrichment,wide range of molecular motions,and distinctive molecular trajectories,have attracted significant research interest.Owing to the inherent fluidity and deformability of liquids,these interfaces exhibit complex dynamic interfacial properties related to wetting,emulsification,phase separation,phase fusion,and environmental versatility,which play pivotal roles in various fields including materials science,chemical engineering,bioengineering,and environmental science.In situ characterization techniques for gas-liquid and liquid-liquid interfaces offer comprehensive insights into the dynamic molecular properties occurring at the heterogeneous interface between the two phases.The gas/liquid and liquid/liquid interface layers have a dynamic region with thicknesses ranging from angstroms to nanometers,separating the homogeneous gas phase from the liquid phase or one liquid phase from another.Their dynamically changing structures are heterogeneous and distinct from the fundamental chemical and physical properties of the two phases.Weak signal intensities often result in low signal-to-noise ratios.The states of the two bulk phases(e.g.,impurities and concentration distribution of specific molecules)and the environmental conditions at the interface(e.g.,temperature and pressure)can affect the interfacial molecular behaviours,making it challenging to distinguish the location and interface within a very short time.Over the past decade,characterization technologies for gas/liquid and liquid/liquid interfaces have undergone continuous upgrades and iterations.Emerging characterization methods,such as high-resolution imaging,high-speed cameras,interface-functionalized molecular luminescence tracing,imaging with various luminescence light sources,and the construction of multiscale interface models,have been utilized to obtain the interfacial properties of molecular aggregation at the

关 键 词：气/液界面 液/液界面 界面分子动态行为 原位表征 

分 类 号：O647.11[理学—物理化学]