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Transition metals supported on mesoporous ZrO2 for the catalytic control of indoor CO and PM emissions

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Title Transition metals supported on mesoporous ZrO2 for the catalytic control of
indoor CO and PM emissions
 
Creator Doggali, Pradeep
Waghmsre, S
Rayalu, Sadhana S
Teraoka, Y
Labhsetwar, Nitin
 
Subject Materials Science
 
Description Mesoporous ZrO2 support has been prepared by using a low cost natural biopolymer chitosan as template,
and different transition metals from the first row (Fe, Co, Ni, Cu and Mn) were impregnated on
the synthesized support. The synthesized catalysts have been characterized by XRD, BET-SA, SEM, TEM,
O2-TPD and TG analysis to study the material details as well as to understand the catalytic mechanism.
The activity of these catalysts has been investigated for CO and PM oxidation. Incorporation
of transition metals improved the activity for both CO and PM oxidation. It has been observed that
Co–ZrO2 is the most active catalyst for studied reactions while, Ni based catalysts show the lowest
activity for both the reactions. The transition metal supported catalysts follow the activity sequence
Co–ZrO2 > Mn–ZrO2 > Cu–ZrO2 > Fe–ZrO2 > Ni–ZrO2. The effect of CO2, SO2 and H2O on CO oxidation activity
was also investigated, and despite partial deactivation, the catalysts show good CO oxidation activity.
The characterization of the materials by O2-TPD studies explains the better catalytic performance for
the Co–ZrO2, Mn–ZrO2 and Cu–ZrO2 catalysts, as compared to Fe–ZrO2 and Ni–ZrO2. Such mesoporous
zirconia with reasonably good surface area and without ordered structure could be useful for both CO
and PM oxidation reactions.
 
Publisher Elsevier
 
Date 2011
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/1030/1/doggali2011.pdf
Doggali, Pradeep and Waghmsre, S and Rayalu, Sadhana S and Teraoka, Y and Labhsetwar, Nitin (2011) Transition metals supported on mesoporous ZrO2 for the catalytic control of indoor CO and PM emissions. Journal of Molecular Catalysis A: Chemical, 347. pp. 52-59. ISSN 1381-1169
 
Relation https://www.journals.elsevier.com/journal-of-molecular-catalysis-a-chemical
http://neeri.csircentral.net/1030/