This course is about the colloids & surfactants, which additionally focuses on different isotherms e.g. Langmuir, Freundlich, Henry, Temkin, Slygin-Frumkin and BET adsorption isotherms, chemisorption and surface heterogeneity. Moreover the important topics to be covered in this course include adsorption at liquid/gas interface, surface tension of solutions and surface excess amount, Gibbs adsorption isotherm, potential theory of adsorption, comparison of gas and vapor adsorption theories, Nature of surface bond, conductivity measurements. Surface techniques, field emission microscopy (FEM), field ion microscopy (FIM), low energy election diffraction studies (LEED), Measurement of gas and vapor adsorption, gas chromatography coupled with mass spectrometry in the study of heterogeneous catalysis. As having comprehensive knowledge of reactions occurring on surface of adsorbent and dynamics is part of this course. After studying this course students will be able to apply the knowledge of adsorption isotherms and sorption process to understand and interpret the mechanism of a reaction and to calculate Gibbs free energy. By applying this knowledge physical chemists are able to apply isothermal and kinetic models on sorption and interpret the mechanism of reaction involved.

Contents

1. Adsorption systems.
2. Comparison of various adsorption isotherms (Langmuir & Freundlich adsorption isotherm)
3. Henry adsorption isotherm
4. Temkin adsorption isotherm
5. Slygin-Frumkin isothermal model
6. BET adsorption isotherm
7. Chemisorption and surface heterogeneity
8. Adsorption at liquid/gas interface
9. Surface tension of solutions and surface excess amount.
10. Gibbs adsorption isotherm
11. Potential theory of adsorption
12. Comparison of gas and vapor adsorption theories, Nature of surface bond.
13. Conductivity measurements. Surface techniques, Field Emission Microscopy (FEM)
14. Field Ion Microscopy (FIM)
15. Low Energy Election Diffraction studies (LEED)
16. Measurement of gas and vapor adsorption
17. Gas Chromatography coupled with Mass Spectrometry in the study of heterogeneous catalysis
18. Applications of radiotracers in catalysis

Recommended Texts

1. Kontogeorgis, G. M. & Kiil, S. (2016). Introduction to applied colloid and surface chemistry. John Wiley & Sons Inc.
2. Thomas, J. M. & Thomas, W. J. (2015). Principles and practice of heterogeneous catalysis. Germany: Wiley-VCH Verlag GmbH.

Suggested Readings

1. Somorjai, G. A., Yimin, L. (2010). Introduction to surface chemistry and catalysis. John Wiley & Sons Inc.
2. Cosgrove, T. (2010). Colloid science: principles, methods and application. John Wiley & Sons Inc.
3. Pashley, R., Karaman, M. (2004). Applied colloid and surface chemistry. John Wiley & Sons Inc.
4. Related Research Papers