New method for the immobilization of nitroxyl radical on mesoporous silica

A Machado; M. H. Casimiro; L. M. Ferreira; J. E. Castanheiro; A. M. Ramos; I. M. Fonseca; J. Vital

doi:10.1016/j.micromeso.2014.10.019

New method for the immobilization of nitroxyl radical on mesoporous silica

A Machado, M. H. Casimiro, L. M. Ferreira, J. E. Castanheiro, A. M. Ramos, I. M. Fonseca, J. Vital

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

This work reports the covalent attachment of 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (4-hydroxy-TEMPO) on the mesoporous silicas MCM-41 and SBA-15, by using 1,4-diisocyanatobutane as a binder. The catalysts were characterized by nitrogen adsorption/desorption, XRD, TEM, TGA, DSC and FTIR spectroscopy. Catalytic tests were performed on the liquid phase oxidation of benzyl alcohol and the secondary alcohol isoborneol by using tert-butyl hydroperoxide as oxidant. The catalysts showed good activity and stability in consecutive oxidation experiments with the same catalyst samples. (C) 2014 Elsevier Inc. All rights reserved.

Original language	English
Pages (from-to)	63-72
Number of pages	10
Journal	Microporous and Mesoporous Materials
Volume	203
Issue number	C
DOIs	https://doi.org/10.1016/j.micromeso.2014.10.019
Publication status	Published - Feb 2015

Keywords

DICB
MCM-41
Oxidation
SBA-15
TEMPO

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title = "New method for the immobilization of nitroxyl radical on mesoporous silica",

abstract = "This work reports the covalent attachment of 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (4-hydroxy-TEMPO) on the mesoporous silicas MCM-41 and SBA-15, by using 1,4-diisocyanatobutane as a binder. The catalysts were characterized by nitrogen adsorption/desorption, XRD, TEM, TGA, DSC and FTIR spectroscopy. Catalytic tests were performed on the liquid phase oxidation of benzyl alcohol and the secondary alcohol isoborneol by using tert-butyl hydroperoxide as oxidant. The catalysts showed good activity and stability in consecutive oxidation experiments with the same catalyst samples. (C) 2014 Elsevier Inc. All rights reserved.",

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AU - Machado, A

AU - Casimiro, M. H.

AU - Ferreira, L. M.

AU - Castanheiro, J. E.

AU - Ramos, A. M.

AU - Fonseca, I. M.

AU - Vital, J.

N1 - Sem PDF

PY - 2015/2

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N2 - This work reports the covalent attachment of 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (4-hydroxy-TEMPO) on the mesoporous silicas MCM-41 and SBA-15, by using 1,4-diisocyanatobutane as a binder. The catalysts were characterized by nitrogen adsorption/desorption, XRD, TEM, TGA, DSC and FTIR spectroscopy. Catalytic tests were performed on the liquid phase oxidation of benzyl alcohol and the secondary alcohol isoborneol by using tert-butyl hydroperoxide as oxidant. The catalysts showed good activity and stability in consecutive oxidation experiments with the same catalyst samples. (C) 2014 Elsevier Inc. All rights reserved.

AB - This work reports the covalent attachment of 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (4-hydroxy-TEMPO) on the mesoporous silicas MCM-41 and SBA-15, by using 1,4-diisocyanatobutane as a binder. The catalysts were characterized by nitrogen adsorption/desorption, XRD, TEM, TGA, DSC and FTIR spectroscopy. Catalytic tests were performed on the liquid phase oxidation of benzyl alcohol and the secondary alcohol isoborneol by using tert-butyl hydroperoxide as oxidant. The catalysts showed good activity and stability in consecutive oxidation experiments with the same catalyst samples. (C) 2014 Elsevier Inc. All rights reserved.

KW - DICB

KW - MCM-41

KW - Oxidation

KW - SBA-15

KW - TEMPO

UR - http://www.scopus.com/inward/record.url?scp=84926148831&partnerID=8YFLogxK

U2 - 10.1016/j.micromeso.2014.10.019

DO - 10.1016/j.micromeso.2014.10.019

M3 - Article

AN - SCOPUS:84926148831

SN - 1387-1811

VL - 203

SP - 63

EP - 72

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

IS - C

ER -

New method for the immobilization of nitroxyl radical on mesoporous silica

Abstract

Keywords

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