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

Literature Information

Publication Date 2006-05-02
DOI 10.1039/B604515D
Impact Factor 3.676
Authors

E. Groppo, C. Lamberti, F. Cesano, A. Zecchina


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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.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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