Direct glycol assisted synthesis of an amorphous mesoporous silicate with framework incorporated Co super(2+): characterization and catalytic application in ethylbenzene oxidation

Direct glycol assisted synthesis of an amorphous mesoporous silicate with framework incorporated Co super(2+): characterization and catalytic application in ethylbenzene oxidation

Cobalt was successfully incorporated into an amorphous disordered mesoporous silica, TUD-1 using tetraethylene glycol (TEG) as a non-surfactant structure directing agent. The Si/Co ratio was varied (100, 50 and 25) and the prepared materials were characterized by various analytical and spectroscopic...

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Veröffentlicht in:RSC advances 2014-07, Vol.4 (56), p.29909-29916
Hauptverfasser: Pachamuthu, Muthusamy P, Rajalakshmi, Rajamanickam, Maheswari, Rajamanickam, Ramanathan, Anand
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Sprache:eng
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Amorphous materials
Ethylbenzene
Glycols
Oxidants
Oxidation
Sorption
Transmission electron microscopy
X-ray photoelectron spectroscopy
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container_issue 56
container_start_page 29909
container_title RSC advances
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creator Pachamuthu, Muthusamy P
Rajalakshmi, Rajamanickam
Maheswari, Rajamanickam
Ramanathan, Anand
description Cobalt was successfully incorporated into an amorphous disordered mesoporous silica, TUD-1 using tetraethylene glycol (TEG) as a non-surfactant structure directing agent. The Si/Co ratio was varied (100, 50 and 25) and the prepared materials were characterized by various analytical and spectroscopic techniques, viz., XRD, N sub(2) sorption, diffuse reflectance UV-Vis, FTIR, ICP-OES, SEM-EDAX, TEM, TGA and XPS studies. N sub(2) sorption and TEM revealed the amorphous mesoporous nature of these materials. The exclusive formation of framework incorporated Co super(2+) species in these materials was confirmed from XPS and UV-Vis studies. Activity of the CoTUD-1 material was tested for the liquid phase ethylbenzene oxidation with TBHP (70%) as an oxidant. Various reaction parameters such as time, TBHP concentration and solvents were studied.
doi_str_mv 10.1039/c4ra03289f
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source Royal Society Of Chemistry Journals
subjects Amorphous materials
Ethylbenzene
Glycols
Oxidants
Oxidation
Sorption
Transmission electron microscopy
X-ray photoelectron spectroscopy
title Direct glycol assisted synthesis of an amorphous mesoporous silicate with framework incorporated Co super(2+): characterization and catalytic application in ethylbenzene oxidation
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