Various techniques are used to identify the mechanisms, which will not be recited here because a comprehensive presentation was recently made by Perez-Ramirez's group. This work clearly shows that a large number of different mechanisms have been demonstrated and that these mechanisms can be elucidated using suitable analytical methods .The number of different available techniques used for analysis of potential deactivation mechanisms is quite high, while the applicability depends on the mechanism itself and the experimental environment. The question, therefore, arises whether it would be helpful to classify the mechanisms using a reactive method and thus be able to carry out the detailed analysis in a more targeted manner. As deactivation is a dynamic process, it would make sense to apply dynamic investigation methods that are already used to analyse microkinetic processes .