Issue 21, 2006
From the journal:

Physical Chemistry Chemical Physics

On the fraction of CrII sites involved in the C2H4 polymerization on the Cr/SiO2 Phillips catalyst: a quantification by FTIR spectroscopy

E. Groppo,*a   C. Lamberti,a   F. Cesanoa  and  A. Zecchinaa  

* Corresponding authors

a Department of Inorganic, Physical and Materials Chemistry, INSTM centro di riferimento and NIS Centre of Excellence, University of Turin, Via P. Giuria 7, 10125 Torino, Italy
E-mail: elena.groppo@unito.it.
Fax: +39-011-6707855
Tel: +39-011-6707841

Abstract

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.

Graphical abstract: On the fraction of CrII sites involved in the C2H4 polymerization on the Cr/SiO2 Phillips catalyst: a quantification by FTIR spectroscopy

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Article information

DOI
https://doi.org/10.1039/B604515D
Article type
Communication
Submitted
28 Mar 2006
Accepted
13 Apr 2006
First published
02 May 2006

Phys. Chem. Chem. Phys., 2006,8, 2453-2456

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On the fraction of CrII sites involved in the C2H4 polymerization on the Cr/SiO2 Phillips catalyst: a quantification by FTIR spectroscopy

E. Groppo, C. Lamberti, F. Cesano and A. Zecchina, Phys. Chem. Chem. Phys., 2006, 8, 2453 DOI: 10.1039/B604515D

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