On the fraction of CrII sites involved in the C2H4 polymerization on the Cr/SiO2 Phillips catalyst: a quantification by FTIR spectroscopy
Literature Information
E. Groppo, C. Lamberti, F. Cesano, A. Zecchina
An estimation of the fraction of CrII sites involved in the C2H4 polymerization on a CrII/SiO2 Phillips catalyst has been obtained by means of in situ alternated CO adsorption and C2H4 polymerization FTIR experiments: about 28% of the total surface sites react fast with C2H4, while a lower fraction, which depends upon the temperature reaction conditions, is more slowly involved, in agreement with XANES results.
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![4-[(1-Methyl-1H-pyrrol-2-yl)methylene]-1,3(2H,4H)-isoquinolinedione structure 4-[(1-Methyl-1H-pyrrol-2-yl)methylene]-1,3(2H,4H)-isoquinolinedione structure](https://static.chemtradehub.com/structs/110/1104546-89-5-a600.webp)

