REACTIVITY AND TRANSFORMATION ROUTES OF SURFACE NITRATES IN THE REACTION OF NOX REDUCTION BY C3H8 OVER CATION-EXCHANGED ZEOLITES

Authors
SADYKOV VA PAUKSHTIS EA BELOSHAPKIN SA ALIKINA GM VENIAMINOV SA NETYAGA EV BUNINA RV LUNINA EV KHARLANOV AN LUNIN VV MATYSHAK VA ROZOVSKII AY
Citation
Va. Sadykov et al., REACTIVITY AND TRANSFORMATION ROUTES OF SURFACE NITRATES IN THE REACTION OF NOX REDUCTION BY C3H8 OVER CATION-EXCHANGED ZEOLITES, Reaction kinetics and catalysis letters, 65(1), 1998, pp. 113-119
Citations number
15
Categorie Soggetti
Chemistry Physical
Journal title
Reaction kinetics and catalysis letters → ACNP
ISSN journal
01331736
Volume
65
Issue
1
Year of publication
1998
Pages
113 - 119
Database
ISI
SICI code
0133-1736(1998)65:1<113:RATROS>2.0.ZU;2-S
Abstract
FTIRS combined with N-15 and O-18 isotope substitution and TPD have re vealed that nitrates are the most abundant ad-NOx species on over-exch anged Cu- and Co-ZSM-5 zeolites. The transformation rates of such spec ies under the action of a propane - oxygen mixture were found to be co mparable and sufficiently high to afford steady-state catalytic activi ties. A scheme of the reaction mechanism including C, N -containing in termediates detected in this work is suggested.