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Schematic overview of the multiscale characterization approach applied to the SiO2/MAO/M (M = Hf, Zr) ethylene polymerization catalysts and the information provided by each technique. (A) Correlated focused ion beam-scanning electron microscopy (FIB-SEM) and infrared photoinduced force microscopy (IR PiFM). (B) Time-resolved IR spectroscopy in the presence of d-acetonitrile (d-ACN) as a probe molecule.
