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Ni:CeO2 nanocomposite catalysts prepared by polymeric precursor method

Paper ID Volume ID Publish Year Pages File Format Full-Text
44037 46000 2006 9 PDF Available
Title
Ni:CeO2 nanocomposite catalysts prepared by polymeric precursor method
Abstract

The biopolymer Chitosan was used as polymeric precursor for the synthesis of Ni:CeO2 nanocomposite catalysts. Evidences for the formation of a hybrid polymer, of the Ce-citrate complex and the chitosan by polyesterification reaction, was provided by 13C NMR and Raman spectroscopy. After the heat-treatment of the hybrid polymer at several temperatures, the materials were characterized by N2 physisorption, H2 and CO2 chemisorption, XRD, EDX, TEM and Raman analyses. The results show that the presence of residual carbon has a positive influence on the samples properties. It was found that residual carbon contributes to a high surface area and to direct formation of Ni metal during the pyrolysis in N2 atmosphere. In addition, due to the presence of residual carbon, the catalytic performance in CO2 reforming of CH4 indicated an enhanced stability and coking resistance of the catalysts.

Keywords
Nanocomposite; Ni-ceria catalyst; Polymeric route
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 310, 17 August 2006, Pages 174–182
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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