advanced physical chemistry of surface
- 1- Introduction- including the introduction of the course and its objectives - course syllabus - references - applications and how to run the course during the semester
2- Introductory session (continued) - definitions of atom and molecule - electronegativity - electron affinity - interatomic and intermolecular forces - energy and potential equations - interparticle forces
Macroscopic and microscopic forces - types of attractive and repulsive forces - gravitational and electrostatic forces
- second week
• Definition of solid and liquid phases - gas - interaction of different phases with each other - Boltzmann distribution-colloid relationship and discussion of particle size - practical examples - importance and application
Characteristics of liquids and solids in the bulk and on the surface - introduction of surface forces
- week 3 and 4
Surface tension - definition - molecular measurement - macroscopic measurement -effect of temperature- pressure- concentration- unit- capillarity, Yang-Laplace equation, Kelvin equation and capillary condensate - nucleation
- week 5
Solid surfaces, the difference in surface tension and surface energy of solids and surface defects - crystallinity, surface packing = arrangement of particles - crystalline lattices - Miller and Barvis indices - how to determine and estimate the surface energy of solids from Hamaker law and fracture of solids
- week 6 and 7
Introduction to thermodynamics and Maxwells law - intensive and extensive parameters - nature and thermodynamics of liquid interfaces or liquid surfaces - thermodynamic concept of excess quantities of excess concentration and...), thermodynamic definition of interface and Gibbs equation - Gibbs dividing plate
- week 8
Van der Waals forces, electric double layer forces, capillary forces, hydrodynamic forces, forces around the thin layer, solvation and hydration forces, depletion forces
- week 9 and 10
Surface absorption
• Introductions and definitions, adsorption thermodynamics, adsorption isotherms, laboratory methods of measuring surface adsorption.
- week 11
Electric double layer and charged surfaces
• Definition of electric double layer, Poisson-Boltzmann theory for diffusion double layer, Grahams relation and capacity of double layer, Poisson-Boltzmann limits, introduction of Stern layer, Gibbs free energy of double layer, electrocapillarity, examples of charged surfaces, density measurement Surface charge, zeta potential
- week 12
characterization of solid surfaces
- week
surface active agents- chemistry and chemical physics - critical micell concentration - determining parameters - structure architecture - thermodynamics
- week 14 and 15
liquid-solid interface - contact angle and wetting, hysteresis of contact angle, linear tension, calculation of surface energy of solids from contact angle value
- week 16
concluding remarks