表面化学Surface and Interface Chemistry.pptVIP

Surface and Interface Chemistry Contents Introduction Content of this course Technology for studying surface and interface The clean surface Surface structure The solid-gas interface Adsorption processes of gases on solids Surface reaction The solid-liquid interface Contact angles and wetting Ore flotation and detergency The liquid-gas and liquid-liquid interface Surface and interfacial tensions Adsorption and orientation at interfaces 1. Introduction 1.1 Surface and Interface Types of interface Gas-Liquid: G-L Liquid 1-Liquid 2: L1-L2 Gas-Solid: G-S Liquid-Solid: L-S Solid 1-Solid 2: S1-S2 Surface and interface chemistry is the study of chemical phenomena that occur at the interface of two phases. 1.3 Importance of surface and interface Techniques for studying surfaces Common techniques (1) Auger Electron Spectroscopy (AES) Atomic Force Microscopy (AFM) Reflection Absorption Infra-Red Spectroscopy (RAIRS) Ultraviolet Photoemission Spectroscopy (UPS) X-ray Photoemission Spectroscopy (XPS) Secondary Ion Mass Spectrometry (SIMS) Electron Spectroscopy for Chemical Analysis (ESCA) Scanning Near Field Optical Microscopy (SNOM) Temperature Programmed Desorption (TPD) Temperature Programmed Reaction Spectroscopy (TPRS) Common techniques (2) Field Emission Microscopy (FEM) Field Ion Microscopy (FIM) Scanning Tunneling Microscopy (STM) Low Energy Electron Diffraction (LEED) Reflection High Energy Electron Diffraction (RHEED) Ion Scattering Spectroscopy (ISS) Electron Stimulated Desorption (ESD) Electron Energy Loss Spectroscopy (EELS) Ion Neutralization Spectroscopy (INS) Ozone hole Corrosion Catalytic converters Sensors Textiles Textile auxiliaries Oil emulsions Anti-static agents Slipping agents Sizing agents Brightening agents … Printing and dyeing agents Leveling agents Accelerating agents Retarding agents Dye-fixing agents … Finishing agents Softeners Stiffening agents Anti-static agents Water-proofing agents Pap