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Effect of the Y2O3–ZrO2 support composition on nickel catalyst evaluated in dry reforming of methane

Paper ID Volume ID Publish Year Pages File Format Full-Text
43167 45957 2009 9 PDF Available
Title
Effect of the Y2O3–ZrO2 support composition on nickel catalyst evaluated in dry reforming of methane
Abstract

Nickel catalysts with a load of 5 wt.% Ni, supported on pure ZrO2 and ZrO2 stabilized with 4 mol%, 8 mol% and 12 mol% of Y2O3, were prepared by the polymerization method. The samples were characterized by X-ray diffraction (XRD), temperature-programmed reduction with hydrogen (TPR-H2), specific surface area (BET) and electronic paramagnetic resonance (EPR) and tested as catalysts for carbon dioxide reforming of methane. The XRD patterns showed the presence of the oxide precursor (NiO) and the tetragonal phase of a Y2O3–ZrO2 solid solution. According to the TPR-H2 analysis, the reduction of various NiO species was influenced by the composition of the support. Catalytic tests were conducted at 800 °C for 6 h, and the composition of the gaseous products and the catalytic conversion rate depended on the composition of the Y2O3–ZrO2 solid solution and its influence on the supported NiO species. A direct relation was observed between the variation in the support, the nickel species supported on it and the performance in the catalytic tests.

Graphical abstractNickel catalysts supported on pure ZrO2 and ZrO2 stabilized with 4 mol%, 8 mol% and 12 mol% of Y2O3. According to the TPR-H2, the reduction of various NiO species was influenced by the solid solution supported composition. Dry reforming was carried out being the composition products and conversion depended on the Y2O3–ZrO2 solid solution composition and its influence on supported NiO species. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Dry reforming; NiO catalysts; Y2O3–ZrO2 supports
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Effect of the Y2O3–ZrO2 support composition on nickel catalyst evaluated in dry reforming of methane
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 352, Issues 1–2, 15 January 2009, Pages 179–187
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us