Cobalt sites in zeolites FAU – IR investigations

Bibliographic description

title:	Cobalt sites in zeolites FAU – IR investigations
author:	Góra-Marek Kinga , Walas Stanisław , Mrowiec Halina
journal title:	Journal of Molecular Structure
volume:	923
issue:	1-3
date of publication :	2009
pages:	67-71
ISSN:	0022-2860
eISSN:	1872-8014
DOI:	10.1016/j.molstruc.2009.01.054
language:	English
journal language:	English
abstract in English:	The properties of Co 2+ in zeolites CoX and CoY and their interaction with CO, NO, and propene were fol- lowed. The IR experiments of CO and NO informed on the electron acceptor properties of Co 2+ sites and the influence of framework composition and of geometry of Co 2+ environment on the properties of Co 2+ .It has been found, that the activation of CO and NO is realized mostly by p back donation, on the other hand, the activation of C @ C double bond in propene is realized by p donation. The strength of molecules to Co 2+ bonding was followed in desorption experiments. It has been found, that r donation in the case of CO and p donation has more important impact to the strength of molecule to Co 2+ bonding.
keywords in English:	Co-zeolites, NO adsorption, CO adsorption, IR spectroscopy
departmental parameterization:	20
affiliation:	Wydział Chemii : Zakład Chemii Analitycznej, Wydział Chemii : Zakład Chemii Nieorganicznej
type:	journal article
subtype:	academic paper

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