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Catalytic oxidation of cyclohexane over Ti–Zr–Co catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
42494 45928 2009 6 PDF Available
Title
Catalytic oxidation of cyclohexane over Ti–Zr–Co catalysts
Abstract

Ti–Zr–Co alloys have been fabricated and characterized, and their catalytic performance was discussed for the oxidation of cyclohexane with oxygen under solvent-free condition. The icosahedral quasicrystalline phase (I-phase)-forming ability of Ti–Zr–Co alloys with different compositions was discussed, and it was confirmed that I-phase could be formed as a dominating phase at the Ti-rich composition region from Ti53Zr27Co20 to Ti75Zr5Co20 in as-cast alloys. The composition and microstructure of Ti–Zr–Co alloys present crucial influences on its catalytic activity and selectivity in the oxidation of cyclohexane. The influences of some reaction parameters such as temperature, reaction time, and catalyst amounts were also investigated. Ti70Zr10Co20 alloy containing quasicrystal microstructure showed good catalytic performance with a 6.8% conversion of cyclohexane and 90.4% selectivity of cyclohexanol and cyclohexanone. It behaves as an efficient heterogeneous catalyst for the oxidation of cyclohexane and could be recycled five times without loss in activity and selectivity.

Graphical abstractTi–Zr–Co alloys have been fabricated and characterized, and their catalytic performance was discussed for the oxidation of cyclohexane with oxygen under solvent-free condition. The composition and microstructure of Ti–Zr–Co alloy present crucial influences on its catalytic activity and selectivity in the oxidation of cyclohexane.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Ti–Zr–Co alloys; Icosahedral quasicrystal; Catalyst; Cyclohexane oxidation
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Catalytic oxidation of cyclohexane over Ti–Zr–Co catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 368, Issues 1–2, 31 October 2009, Pages 29–34
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us