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Introduction to Chemical Adsorption Analytical Techniques and Their Applications to Catalysis

From Micromeritics
 

 

The chemical adsorption isotherm reveals information about the active surface of a material and has been employed for many years as a standard analytical tool for the evaluation of catalysts. Temperature-programmed reaction techniques have emerged from the 1950's as an indispensable companion to chemisorption isotherm analyses in many areas of industry and research. This paper provides an introduction to these analytical techniques. Keywords: chemical adsorption, temperature programmed reactions, TPD, TPR, TPO, catalyst

Optimum design and efficient utilization of catalysts require a thorough understanding of the surface structure and surface chemistry of the catalytic material. Chemical adsorption (chemisorption) analyses can provide much of the information needed to evaluate catalyst materials in the design and production phases, as well as after a period of use. The required analytical equipment can be relatively inexpensive, simple to operate, and fast compared to alternate equipment capable of obtaining the same information.

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Topics of Interest
J.M. Kanervo, R.I. Slioor and A.O.I. Krause Helsinki University of Technology, Laboratory of Industrial Chemistry, P.O. Box 6100 FIN-02015 HUT, Finland 1 INTRODUCTION Chemisorption of hydrogen... (Read More)
Alan L. Myers 1 Introduction The attachment of molecules to the surface of a solid by adsorption is a broad subject. This chapter is focused on the adsorption of gases in high-capacity solid... (Read More)
Melene M. Keyser and Frans F. Prinsloo Sasol Technology R&D, KlasieHavenga Road 1, Sasolburg, 1947 Abstract This paper reports the loading of oxidized carbon nanofibers with cobalt employing a... (Read More)
Adsorption / Desorption property testers are instruments or test equipment for adsorption and desorption studies. Adsorption is the physicochemical adhesion of a substance (liquid, gas, or dissolved... (Read More)
4.2 HETEROGENEOUS CATALYSTS Heterogeneous catalysts have been used industrially for well over 100 years. Amongst the first processes was the catalytic hydrogenation of oils and fats to produce... (Read More)