Evaluation of Interaction Forces between Surfaces in Electrolyte Solutions by Atomic Force Microscope

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Ko Higashitani¹  Kazushige Ishimura¹ 

[1] Department of Chemical Engineering, Kyoto University

关键词: AFM Interaction Forces;    Hydrated Ion;    Adsorbed Layer;    Hydration Force;   

DOI  :  10.1252/jcej.30.52

来源: Maruzen Company Ltd

【 摘 要 】

References(24)Cited-By(13)Interaction forces between a cleaved mica and the SiO2 surface of an apex of an AFM probe in electrolyte solutions were measured using an Atomic Force Microscope (AFM). It is found that (1) the AFM is a powerful apparatus to measure in-situ the interaction forces between surfaces in solutions on the molecular level, (2) the long-range interaction force between surfaces is estimated well by the classical DLVO theory, (3) the magnitude of the short-range interaction force corresponds to the order of the hydration enthalpy of the ions in the solution. A possible model for the structure of water molecules and ions adsorbed on the surface was discussed.

【 授权许可】

Unknown