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Book Chapter

In situ Characterisation of Practical Heterogeneous Catalysts

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Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Schlögl, R. (2004). In situ Characterisation of Practical Heterogeneous Catalysts. In M. Baerns (Ed.), Basic Principles in Applied Catalysis (pp. 321-360). Berlin: Springer.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0E70-6
Abstract
In situ methods are considered as a curiosity within the standard methodology of practical catalyst characterization. The methods are not commercially available and need to be adapted and validated for each specific problem. The great advantage of these methods is, however, that they deliver immediately relevant characteristics of the working state of a heterogeneous catalyst and allow justified structure-function relations to be deduced. To achieve this it is essential that the experiments are planned and conducted in such away that the proven to be active state of the catalyst is investigated. This can only be ascertained if simultaneous kinetic and spectroscopic data are acquired. The contribution lists a selection of methods with their main characteristics that allows to choose from the wide spectrum of information those that are most relevant for the given problem. A tabulated selection of case studies from the literature gives some insight in the current practice.