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Issue 56, 2014
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Direct glycol assisted synthesis of an amorphous mesoporous silicate with framework incorporated Co2+: characterization and catalytic application in ethylbenzene oxidation

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Abstract

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, N2 sorption, diffuse reflectance UV-Vis, FTIR, ICP-OES, SEM-EDAX, TEM, TGA and XPS studies. N2 sorption and TEM revealed the amorphous mesoporous nature of these materials. The exclusive formation of framework incorporated Co2+ 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.

Graphical abstract: Direct glycol assisted synthesis of an amorphous mesoporous silicate with framework incorporated Co2+: characterization and catalytic application in ethylbenzene oxidation

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Publication details

The article was received on 11 Apr 2014, accepted on 20 Jun 2014 and first published on 20 Jun 2014


Article type: Paper
DOI: 10.1039/C4RA03289F
Author version available: Download Author version (PDF)
Citation: RSC Adv., 2014,4, 29909-29916
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    Direct glycol assisted synthesis of an amorphous mesoporous silicate with framework incorporated Co2+: characterization and catalytic application in ethylbenzene oxidation

    M. P. Pachamuthu, R. Rajalakshmi, R. Maheswari and A. Ramanathan, RSC Adv., 2014, 4, 29909
    DOI: 10.1039/C4RA03289F

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