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Promoting effect of Ce added to metal oxide supported on Al pillared clays for deep benzene oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
47728 46481 2009 6 PDF Available
Title
Promoting effect of Ce added to metal oxide supported on Al pillared clays for deep benzene oxidation
Abstract

Al pillared clays (Al-PILC) were used to support transition metals (M = Cr, Mn, Fe, Co, Ni and Cu) and Ce for the deep oxidation of low concentration of benzene. The effect of Ce addition to M/Al-PILC was also investigated. The catalysts were characterized by X-ray powder diffraction, N2 adsorption and H2 temperature programmed reduction techniques. Introduction of Ce into M/Al-PILC improves dispersion of transition metals, changes the redox properties of metal oxide and makes it easier to be reduced by the interaction between the two oxides, increasing lattice oxygen lability. In activity tests Mn based catalysts were observed to be the most active among the transition metals, and adding Ce obviously improved the activity and stability of M/Al-PILC. Moreover, Ce content had a great effect on the activity of MnCe/Al-PILC. MnCe (18:1)/Al-PILC exhibited the highest activity, and the temperature for complete benzene conversion using this catalyst was about 310 °C.

Keywords
Pillared clay; Transition metal; Cerium; Redox property; Benzene oxidation
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Promoting effect of Ce added to metal oxide supported on Al pillared clays for deep benzene oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 91, Issues 1–2, 7 September 2009, Pages 204–209
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us