Overview
ABSTRACT
This paper is an introduction to heterogeneous catalysis, presenting - the various steps involved in the reactions: diffusion of the reactant molecules from the fluid phase to the catalyst surface, their chemisorption, the surface reaction, the desorption of product molecules and their diffusion to the fluid phase, - as well as their impact on the kinetic equations. The main families of catalysts and the methods used to determine their activity, selectivity and stability are briefly presented.
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Read the articleAUTHORS
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Michel GUISNET : University Professor - Catalysis in Organic Chemistry, Poitiers, France - Center for Biological and Chemical Engineering, Lisbon, Portugal
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Ludovic PINARD : Senior Lecturer, Member of the Board of the French Zeolite Group (GFZ) - Institut de Chimie des Milieux et des Matériaux de Poitiers (IC2MP) - UMR CNRS 7285, University of Poitiers, France
INTRODUCTION
The many and varied applications of heterogeneous catalysis form one of the foundations of our technological society. This multi-disciplinary field requires knowledge of both solid catalysts, from their preparation to their characterization (particularly of their surface), and of reactions: kinetics and mechanisms, and their implementation.
This article, which briefly presents these various aspects, can therefore only be a first approach to the exciting and economically essential subject of heterogeneous catalysis. This theme is developed in detail in a large series of articles: acid-base catalysis
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KEYWORDS
characterization | kinetics | active sites
Heterogeneous catalysis- Operating mode of catalysts
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