Ion adsorption and hydration forces: a comparison of crystalline mica <i>vs.</i> amorphous silica surfaces
Igor Sîreţanu, Simone R. van Lin, Frieder Mugele
Abstract
ions are the only exception: they disrupt the oscillatory hydration structure and induce attractive monotonic hydration forces. On silica, force oscillations are also smeared out if the size of the AFM tip exceeds the characteristic lateral scale of the surface roughness. The observation of attractive monotonic hydration forces for asymmetric systems suggests opportunities to probe water polarization.
Topics & Concepts
MicaSurface forceAmorphous solidChemical physicsIonMoleculeAdsorptionAqueous solutionElectrolyteChemistrySolvation shellSurface forces apparatusSolvationSurface finishSurface roughnessChemical engineeringMaterials scienceCrystallographyComposite materialPhysical chemistryEngineeringOrganic chemistryMechanicsPhysicsElectrodeElectrostatics and Colloid InteractionsForce Microscopy Techniques and ApplicationsSpectroscopy and Quantum Chemical Studies