Dinitrogen irreversible adsorption on over exchanged Cu-ZSM-5

Authors :: Recchia, Sandro
Dossi, Carlo
Psaro, Rinaldo
Moretti, Giuliano
Fusi, Achille
Ugo, Renato
Source :: Journal of Physical Chemistry B. Dec 26, 2002, Vol. 106 Issue 51, p13326, 7 p.
Publication Year :: 2002
Abstract: Dinitrogen adsorption on overexchanged Cu-ZSM-5 is examined at 302 K by diffuse reflectance infrared spectroscopy, N2-adsorption isotherms and tempertaure-programmed N2 desorption. The introduction of controlled amounts of impurities, together with the utilization of N(super 15)(sub 2) and CO(super 13) indicate that this band is instead related to hydrated Cu(*I)-CO species formed by accumulation on the sample of traces of H2O in the N2 flow.