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Selective destruction of nitrogen-containing organic volatile compounds over Sb–V–O catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
49050 46543 2007 9 PDF Available
Title
Selective destruction of nitrogen-containing organic volatile compounds over Sb–V–O catalysts
Abstract

Mixed Sb–V oxide catalysts are evaluated in the total selective removal of nitrogen-containing organic volatile compounds. Two different synthesis methods and two different supports (alumina and niobia) are studied. The combination of characterization before and after reaction and activity data is used to provide information about the structure–activity/selectivity relationship in vanadium antimonate catalysts. Best results are obtained with alumina-supported catalysts since niobia support tends to interact with antimony forming inert structures. When the catalysts are prepared with antimony tartrate soluble complex, the formation of VSbO4 is favoured; at the same time, the formation of segregated antimony oxides is inhibited. V5+ active sites on the surface of catalysts reduce during the catalytic cycle to V3+ and are stabilized in the VSbO4 structure.

Keywords
Catalytic total oxidation; Nitrogen-containing organic compounds; Sb–V–O catalysts; Sb–V–Nb–O; In situ Raman; XPS
First Page Preview
Selective destruction of nitrogen-containing organic volatile compounds over Sb–V–O catalysts
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 71, Issues 1–2, 8 February 2007, Pages 85–93
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis