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Synthesis, characterization and catalytic properties of nanodimensional nickel ferrite/silica composites

Paper ID Volume ID Publish Year Pages File Format Full-Text
44452 46030 2007 9 PDF Available
Title
Synthesis, characterization and catalytic properties of nanodimensional nickel ferrite/silica composites
Abstract

Nanosized nickel ferrite/silica composites are synthesized using the sol–gel method. X-rays diffraction, Mössbauer and infrared spectroscopies, magnetic measurements and thermo-programmed reduction with hydrogen are used for their characterization. Significant differences in their catalytic activity and selectivity in methanol decomposition to CO and methane, depending on the ferrite/silica ratio, the annealing temperature and the phase transformations of the samples by the reaction medium are observed.

Graphical abstractNanosized NiFe2O4/silica composites are synthesized using the sol–gel method. The investigated compounds are active in the reaction of catalytic methanol decomposition. Significant differences in their catalytic activity and selectivity to methane, depending on the preparation conditions are observed. In this aspect, nickel ferrites composites opens new prospects for the selectivity control of methanol decomposition to hydrogen, methane or CO. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Nanosized nickel ferrite/silica composites; Sol–gel method; Mössbauer spectroscopy; Methanol decomposition; Magnetic measurements
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Synthesis, characterization and catalytic properties of nanodimensional nickel ferrite/silica composites
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 317, Issue 1, 27 January 2007, Pages 34–42
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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