Description

Get a basic knowledge in surface chemistry and heterogeneous catalysis : ranging from the fundamental to a faced targeted reaction

1. Structural and electronic properties of solid surfaces
   1. Thermodynamics : surface vs. Bulk
   2. Electronic properties of surfaces
   3. Structures of surfaces : Woods’ notation, Matrix notation, Relaxation, Reconstruction
   4. Surface characterization techniques : XPS, UPS, STM, AFM, TPD, TPR
2. Fundamentals of adsorption and heterogeneous catalysis
   1. Definitions : physisorption, chemisorption, adsorption isotherms, reversibility principle, TOF / TON, conversion, Selectivity.
   2. Adsorption isoterms (Langmuir, Temkin, Frumkin, BET) ; Adsorption kinetics
   3. Kinetics of surface reactions
      ¿Elementary steps, external and internal mass transfer (Thiele-Weisz modulus), rate determining step, Langmuir-Hinshelwood, Eley-Rideal, Boudart (MASI : most abundant surface intermediate).
3. Industrial Catalyst
   Types of Supports – active phase preparation (impregnations, coprecipitation, solgel), isoelectric point, SMSI
4. Irational design of a catalyst
   Iterative process, methodology for characterisation (prior, during and after reaction).
5. Zeolites and acid catalysis
   Synthesis routes, main catalytic applications, superacidity ; carbocations ; other solid acids ; mesoporous solids (SBA-15, M41S).

Compétences visées

• Fundamental basis of heterogeneous catalysis : active site, adsorption-desorption isotherms, conversion, selectivity
• Main methods to prepare a catalyst : impregnation, co-precipitation, solgel…
• Characterization techniques :
  • Surfaces : XPS, STM, AFM…
  • Bulk : XRD, SEM, BET, Elemental analysis, Acidity measurements…
• Zeolites as a case study
• Catalytic Applications

Contacts

Responsable(s) de l'enseignement

• Benoit Louis
• Elena Savinova