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Iron modified titanium–hafnium binary oxides as catalysts in total oxidation of ethyl acetate

Paper ID Volume ID Publish Year Pages File Format Full-Text
49766 46765 2016 6 PDF Available
Title
Iron modified titanium–hafnium binary oxides as catalysts in total oxidation of ethyl acetate
Abstract

•Titania modified with hafnia as a host matrix of iron oxide phase.•Iron phase consists of substituted TiO2 and differently dispersed Fe2O3 particles.•Composition and catalytic activity of supported iron phase depend on Hf content.

Multicomponent iron–titanium–hafnium oxide materials with different compositions were prepared by combination of homogeneous precipitation with urea and incipient wetness impregnation techniques and tested as catalysts for ethyl acetate oxidation as representative VOCs. Nitrogen physisorption, XRD, Raman, UV–Vis, XPS, Mössbauer spectroscopy and TPR analyses reveal co-existence of substituted FexTi1 − xO2 oxide, finely dispersed iron oxide species with supper paramagnetic behavior and well crystallized α-Fe2O3 particles, which relative part depends on hafnium content in titania lattice. The effect of phase composition on the catalytic behavior of these materials in ethyl acetate oxidation was discussed.

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Keywords
Titania–hafnia binary oxides; Iron modifications; Support effect; Ethyl acetate oxydation
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Iron modified titanium–hafnium binary oxides as catalysts in total oxidation of ethyl acetate
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 81, 5 June 2016, Pages 14–19
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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Full-text PDF Download
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