Development of a site-selective copper-ion-exchanging method for HZSM-5 by vapourization of a hexafluoroacetylacetonato–copper complex

Abstract

The deposition of copper ion into a single type of ion-exchange site in HZSM-5-type zeolite is successful using bis(1,1,1,5,5,5-hexafluoroacetylacetonato)copper(II) as a volatile complex, and the sample thus prepared gives a single IR absorption band at 2158 cm^–1 upon adsorption of CO, differing from a sample prepared by aqueous ion-exchange, which gives two bands at 2158 and 2151 cm^–1.