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Keywords:

  • heterogeneous catalysis;
  • microscopy;
  • spectroscopic methods;
  • zeolites
Thumbnail image of graphical abstract

Dynamic duo: Combined spectroscopy and microscopy techniques now allow the nature of active sites on zeolite catalysts to be determined in detail. For example, synchrotron IR microscopy reveals the dimeric carbocation of 4-fluorostyrene in a single crystal of ZSM-5 (see picture).