Coursebooks

Physical chemistry of interfaces

CH-341

Lecturer(s) :

Rothenberger Guido

Language:

English

Summary

Acquire an understanding of interfacial phenomena and of micro-heterogeneous colloidal solution systems.

Content

1. Thermodynamics of interfaces
Interfacial tension and surface thermodynamic functions, Laplace pressure, spreading and wetting, contact angle (Young-Dupré equation), capillary ascension, vapor pressure of curved interfaces (Kelvin equation).

2. Colloids/Micelles
Gibbs adsorption equation, solutions of amphiphile molecules (surfactants), hydrophobic effect, micelle formation, critical micellar concentration. Monomolecular Langmuir-Blodgett films.

3. Solid/gas and solid/solution adsorptions
Langmuir, Fowler-Guggenheim and BET isotherms. Adsorption of gases on porous solids, capillary condensation in mesoporous particles.

4. Electrokinetic phenomena
Zeta potential, electro-osmosis and electrophoresis, streaming and sedimentation potentials.

5. Interfaces
Stability of colloids according to the DLVO model. Membrane potential, Goldman's equation.

6. Light scattering by colloids
Rayleigh equation, absorption and scattering cross sections. Determination of the size of particles by light scattering.

7. Characterization of interfaces by microscopy
Introduction to scanning tunnelling microscopy (STM) and atomic force microscopy (AFM).

Keywords

Surface tension.

Micelles.

Adsorption.

Isotherms.

Electrokinetic phenomena.

Learning Prerequisites

Recommended courses

Thermodynamique I & II.

Electrochimie des solutions.

Important concepts to start the course

Thermodynamic functions.

Charged interface, Gouy-Chapman model of the double layer.

Learning Outcomes

By the end of the course, the student must be able to:

Transversal skills

Teaching methods

Ex cathedra lectures and exercises

Expected student activities

Reading the lecture notes and solving the exercises

Assessment methods

Written examination.

Supervision

Office hours No
Assistants Yes
Forum No

Resources

Bibliography

See lecture notes.

Notes/Handbook

Lecture notes

Websites

In the programs

  • Chemistry and Chemical Engineering, 2018-2019, Bachelor semester 4
    • Semester
      Spring
    • Exam form
      Written
    • Credits
      3
    • Subject examined
      Physical chemistry of interfaces
    • Lecture
      2 Hour(s) per week x 14 weeks
    • Exercises
      1 Hour(s) per week x 14 weeks
  • Chemistry and Chemical Engineering, 2018-2019, Bachelor semester 5
    • Semester
      Fall
    • Exam form
      Written
    • Credits
      3
    • Subject examined
      Physical chemistry of interfaces
    • Lecture
      2 Hour(s) per week x 14 weeks
    • Exercises
      1 Hour(s) per week x 14 weeks

Reference week

MoTuWeThFr
8-9 CE1103CHB330
9-10
10-11
11-12
12-13
13-14
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
MoTuWeThFr
8-9
9-10
10-11 CHB330
11-12
12-13 CHB330
13-14
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
Lecture
Exercise, TP
Project, other

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  • Autumn semester
  • Winter sessions
  • Spring semester
  • Summer sessions
  • Lecture in French
  • Lecture in English
  • Lecture in German