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Liquid phase trans-stilbene epoxidation over catalytically active cobalt substituted TUD-1 mesoporous materials (Co-TUD-1) using molecular oxygen

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Abstract.
A series of framework substituted Co-TUD-1 catalysts, prepared by direct hydrothermal synthesis, were
characterized using X-ray diffraction, nitrogen physisorption, transmission electron microscopy and
UV–vis and Raman spectroscopies. These catalysts showed high conversion and selectivity towards
trans-stilbene oxide in liquid phase trans-stilbene epoxidation with molecular oxygen as oxidant in the
absence of a sacrificial reductant. The conversion and selectivity did not remarkably differentiate for
fresh and recycled catalyst after four reaction runs. The unique pore structure of Co-TUD-1 catalyst is
suggested to be beneficial for the epoxidation of bulky alkene molecules comparing with other wellestablished
catalysts, e.g., Co-MCM-41 and Co2+-NaX. Microwave irradiation can significantly shorten
the reaction time, whereas high conversion and epoxide selectivity remained.

Keywords: Co-TUD-1, trans-Stilbene, Epoxidation, Molecular oxygen, Microwave

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Informasi Detail

Judul Seri

Applied Catalysis A: General

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Applied Catalysis A: General 361 (2009) 130–136

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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