Space- and time-resolved visualization of acid catalysis in ZSM-5 crystals by fluorescence microscopy

(Figure Presented) ZSM-5 at work: Acid-catalyzed condensation of furfuryl alcohol in the pores of zeolite ZSM-5 was followed under the fluorescence microscope. During the life-time of a catalyst, from the reaction start to deactivation, the reactivity of the different crystal segments varies. The technique allows the heterogeneity of activity within individual crystals to be visualized (see picture). © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.status: publishe