The CRMC2-Marseille experimental set-up

This experimental assembly, represented on Fig. 2, is the first system using molecular beam for kinetic studies on supported model catalysts [44]. It has been in operation in 1987. 

At the end of the reactivity measurements the sample is transferred back to the preparation chamber where a carbon film is deposited on the sample. This carbon layer has a double use. First, it protects the clusters against a further evolution (coalescence, restructuring, oxidation during air exposure) and second, in the case of MgO crystals it will serve as a thin support for the metal particles (after floating in acidic solution) for subsequent TEM characterization [12]. 

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