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Combustion of volatile organic compounds over Cu–Mn based mixed oxide type catalysts supported on mesoporous Al2O3, TiO2 and ZrO2

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Title Combustion of volatile organic compounds over Cu–Mn based mixed oxide type
catalysts supported on mesoporous Al2O3, TiO2 and ZrO2
 
Creator Doggali, Pradeep
Teraoka, Y
Mungse, P
Shah, Irfan K
Rayalu, S
Labhsetwar, Nitin
 
Subject Materials Science
 
Description A series of supported Cu–Mn based catalysts have been synthesized using three different supports
mesoporous Al2O3, mesoporous TiO2 and mesoporous ZrO2. Cu–Mn precursors were incorporated on
mesoporous supports using wet impregnation method. These catalyst supports were prepared by templating
method using a natural biopolymer namely, chitosan. The catalytic activity for benzene and
acetaldehyde combustion was studied for these catalysts. The synthesized catalysts have been characterized
by XRD, BET-SA, O2-TPD and H2-TPR in a view of material characterization, as well as to investigate
the mechanistic aspects of catalytic reactions. The bimetallic supported catalysts follow the activity
sequence—Cu–Mn/TiO2 > Cu–Mn/ZrO2 > Cu–Mn/Al2O3 for both the reactions studied. These results interestingly
show, that the catalytic activity is dependent on the support used, however, quite independent
of the surface area of these supports. The better activity of TiO2 and ZrO2 based catalysts is likely due to
their redox properties. The existence of low temperature peaks in both O2-TPD and H2-TPR explain better
redox properties as well as catalytic performance of TiO2 and ZrO2 supported catalysts as compared to
those Al2O3 supported mixed oxides.
 
Publisher Elsevier
 
Date 2012-06-28
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/1046/1/doggali2012.pdf
Doggali, Pradeep and Teraoka, Y and Mungse, P and Shah, Irfan K and Rayalu, S and Labhsetwar, Nitin (2012) Combustion of volatile organic compounds over Cu–Mn based mixed oxide type catalysts supported on mesoporous Al2O3, TiO2 and ZrO2. Journal of Molecular Catalysis A: Chemical, 358. pp. 23-30. ISSN 2468-8231
 
Relation https://www.journals.elsevier.com/journal-of-molecular-catalysis-a-chemical
http://neeri.csircentral.net/1046/