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Syntheses and characterizations of cobalt doped mesoporous alumina prepared using natural rubber latex as template and its catalytic oxidation of tetralin to tetralone

Paper ID Volume ID Publish Year Pages File Format Full-Text
41688 45896 2011 6 PDF Available
Title
Syntheses and characterizations of cobalt doped mesoporous alumina prepared using natural rubber latex as template and its catalytic oxidation of tetralin to tetralone
Abstract

Natural rubber latex, one of the most important biosynthesized polymers, was successfully used as template in the syntheses of cobalt doped mesoporous alumina. The synthesized cobalt doped mesoporous alumina was characterized by a combination of various physicochemical techniques; N2 adsorption/desorption, diffuse reflectance UV–vis, X-ray diffraction and FT-IR. It was used as an efficient catalyst for the oxidation of tetralin to 1-tetralone under mild conditions for the first time. The catalyst exhibited high substrate conversion (80.3%) and good product (1-tetralone) selectivity (74.5%). Fast hot catalyst filtration experiments proved that the catalyst acted as a heterogeneous one; it can be reused three times without losing its activity. By contrast, undoped alumina synthesized using rubber latex as template, cobalt-doped alumina synthesized by a using traditional chemical template: poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (P123) as template, and cobalt-doped mesoporous silica synthesized by using natural rubber latex as template exhibited much lower activities.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (105 K)Download as PowerPoint slideResearch highlights► Natural rubber latex templated cobalt doped mesoporous alumina. ► High activity for the oxidation of tetralin to 1-tetralone. ► Heterogeneous catalyst can be used several times without losing its activity. ► A new method for the syntheses of mesoporous alumina.

Keywords
Cobalt doped mesoporous alumina; Natural rubber latex template; Oxidation of tetralin; 1-Tetralone
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Syntheses and characterizations of cobalt doped mesoporous alumina prepared using natural rubber latex as template and its catalytic oxidation of tetralin to tetralone
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 396, Issues 1–2, 15 April 2011, Pages 123–128
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