CATALYTIC-OXIDATION OF METHYL-METHACRYLATE TO METHYL PYRUVATE OVER IRON-CONTAINING ULTRASTABLE Y-ZEOLITES

Authors
LIU DS BAO SL XU QH
Citation
Ds. Liu et al., CATALYTIC-OXIDATION OF METHYL-METHACRYLATE TO METHYL PYRUVATE OVER IRON-CONTAINING ULTRASTABLE Y-ZEOLITES, Applied catalysis. A, General, 158(1-2), 1997, pp. 93-104
Citations number
29
Categorie Soggetti
Chemistry Physical","Environmental Sciences
Journal title
Applied catalysis. A, General → ACNP
ISSN journal
0926860X
Volume
158
Issue
1-2
Year of publication
1997
Pages
93 - 104
Database
ISI
SICI code
0926-860X(1997)158:1-2<93:COMTMP>2.0.ZU;2-E
Abstract
The Catalytic properties of iron-containing ultrastable Y zeolites for the oxidation of methyl methacrylate to methyl pyruvate by H2O2 have been studied. It is found that iron species in cation positions and fr amework lattice are active sites. Combining Mossbauer spectroscopy and temperature programmed reduction techniques, we attribute the reducti on peak with a temperature maximum at about 1123 K to the reduction of Fe3+ in the framework of zeolites to Fe-0. Fe(III) in the framework l attice gives an EPR signal at g = 2.0.