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Heterogeneous Catalysis

Heterogeneous catalysis is a kind of catalysis in which the catalyst involves a different phase from the reactants and products. This may assign to the physical phase - solid, liquid, or gas - but also to immiscible fluids.

Most heterogeneous catalysts are solids that work within gaseous or liquid reactants. It has active places on its surface onto which the reactants are adsorbed and then associate with the catalyst. This interaction develops the reactivity of the molecules.

Acid catalysis, organometallic catalysis, and enzymatic catalysis are samples of homogeneous catalysis. In such cases, acids and bases are frequently very efficient catalysts, as they can speed up reactions by changing bond polarization.

Heterogeneous catalysis typically includes solid-phase catalysts and gas-phase reactants. In this case, there is a cycle of molecular adsorption, reaction, and desorption happening at the catalyst surface. Thermodynamics, mass transfer, and heat transfer impact the rate of reaction.

Heterogeneous catalysis has at least four steps:

  • Adsorption of the reactant onto the surface of the catalyst.
  • Activation of the adsorbed reactant
  • Reaction of the adsorbed reactant.
  • Diffusion of the product from the surface into the gas or liquid phase
Committee Members
Keynote Speaker for Catalysis Conferences 2021 - Stanislaw Dzwigaj

Stanislaw Dzwigaj

Sorbonne Université-CNRS, France
Keynote Speaker for Catalysis Conferences 2021 - José C. Conesa

José C. Conesa

Spanish National Research Council, Spain
Keynote Speaker for Chemical Engineering Conferences 2021

Abdeltif AMRANE

University of Rennes 1, France
Keynote Speaker for Chemical Engineering Conferences 2021

Giacomo Cao

University of Cagliari, Italy
2021 Speakers
Speaker for Chemical Engineering Conferences 2020 - Rafael Luis Espinoza

Rafael Luis Espinoza

Espinoza and Associates, USA
Martino Marco

Martino Marco

University of Salerno, Italy
Speaker for Chemical Engineering Conferences 2020 - Claudio Mahler

Claudio Mahler

Federal University of Rio de Janeiro, Brazil
Keynote Speaker for Chemical Engineering Conferences 2020 - Anastasios I. Zouboulis

Anastasios I. Zouboulis

Aristotle University of Thessaloniki, Greece
Speaker for Chemical Engineering Conferences 2020 - Magdalena Laskowska

Magdalena Laskowska

Institute of Nuclear Physics Polish Academy of Sciences, Poland
Speaker for Chemical Engineering Conferences 2020- Hajime Shirai

Hajime Shirai

Saitama University, Japan

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