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Preparation and application of nickel-containing smectite-type clay materials for methane reforming with carbon dioxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
44508 46037 2006 8 PDF Available
Title
Preparation and application of nickel-containing smectite-type clay materials for methane reforming with carbon dioxide
Abstract

Mesoporous smectite-type clays containing different metals, such as Mg, Fe, Co, or Ni, were synthesized by a hydrothermal method and tested for reforming of methane with carbon dioxide. The synthesized clays had smectite-type structure with mesopores and high surface areas. After hydrogen reduction, the synthesized smectite materials containing Ni are highly active for the reforming reaction. Their activity depends on the synthetic conditions used. The smectite materials prepared at lower slurry pH values and lower hydrothermal temperatures exhibit higher activity than a reference catalyst of Ni/SiO2 prepared by impregnation method. The most active Ni-containing smectite catalyst is superior to the conventional supported Ni catalysts reported in the literature. The turnover frequency (TOF) of Ni smectite catalysts significantly depends on the size of Ni crystallites, which are formed on the reduction; those having smaller Ni crystallites show higher TOF values.

Keywords
Smectite; Nickel; Mesoporous materials; Methane reforming; Crystallite size effect
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Preparation and application of nickel-containing smectite-type clay materials for methane reforming with carbon dioxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 314, Issue 1, 25 October 2006, Pages 32–39
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
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