Pyridine-4-ylmethyl-propyl-amine-organomodified HMS as support for in situ formed cobalt complexes-influence of the metal source on structure and catalytic activity in the aerial epoxidation of olefins

T  Pruss; D J  Macquarrie; J H  Clark

doi:10.1016/j.apcata.2003.12.001

Pyridine-4-ylmethyl-propyl-amine-organomodified HMS as support for in situ formed cobalt complexes-influence of the metal source on structure and catalytic activity in the aerial epoxidation of olefins

T Pruss, D J Macquarrie, J H Clark

Chemistry

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

Abstract

In this paper we compare the properties and catalytic activities of immobilised forms of in situ formed cobalt complexes of pyridin-4-ylmethylpropyl-amine (PYPA), immobilised via grafting of pyridin-4-ylmethyl-(3-triethoxysilanyl-propyl)-amine on pre-formed HMS, and various cobalt salts, formed in aqueous solution. To investigate the role of peroxo species on the catalytic activity, materials with cobalt-alkyl- or hydroperoxo groups were also prepared by addition of TBHP or H2O2 in the loading step of the preparation. The support material and the catalysts were characterised by STA, DRUV, and N-2 adsorption. All catalysts are active in the aerial oxidation of styrene and, with few exceptions, 1-decene, and exhibit different reactivities and selectivities towards epoxidation. (C) 2003 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	29-37
Number of pages	9
Journal	APPLIED CATALYSIS A-GENERAL
Volume	276
Issue number	1-2
DOIs	https://doi.org/10.1016/j.apcata.2003.12.001
Publication status	Published - 25 Nov 2004

Keywords

supported catalysts
cobalt
oxidation
molecular oxygen
epoxidation
MICELLE-TEMPLATED SILICA
OXIDATION
SURFACE

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10.1016/j.apcata.2003.12.001

Cite this

@article{07723372e88d46b48a0ab311ae5ce2e0,

title = "Pyridine-4-ylmethyl-propyl-amine-organomodified HMS as support for in situ formed cobalt complexes-influence of the metal source on structure and catalytic activity in the aerial epoxidation of olefins",

abstract = "In this paper we compare the properties and catalytic activities of immobilised forms of in situ formed cobalt complexes of pyridin-4-ylmethylpropyl-amine (PYPA), immobilised via grafting of pyridin-4-ylmethyl-(3-triethoxysilanyl-propyl)-amine on pre-formed HMS, and various cobalt salts, formed in aqueous solution. To investigate the role of peroxo species on the catalytic activity, materials with cobalt-alkyl- or hydroperoxo groups were also prepared by addition of TBHP or H2O2 in the loading step of the preparation. The support material and the catalysts were characterised by STA, DRUV, and N-2 adsorption. All catalysts are active in the aerial oxidation of styrene and, with few exceptions, 1-decene, and exhibit different reactivities and selectivities towards epoxidation. (C) 2003 Elsevier B.V. All rights reserved.",

keywords = "supported catalysts, cobalt, oxidation, molecular oxygen, epoxidation, MICELLE-TEMPLATED SILICA, OXIDATION, SURFACE",

author = "T Pruss and Macquarrie, {D J} and Clark, {J H}",

year = "2004",

month = nov,

day = "25",

doi = "10.1016/j.apcata.2003.12.001",

language = "English",

volume = "276",

pages = "29--37",

journal = "APPLIED CATALYSIS A-GENERAL",

issn = "0926-860X",

publisher = "Elsevier",

number = "1-2",

}

Pyridine-4-ylmethyl-propyl-amine-organomodified HMS as support for in situ formed cobalt complexes-influence of the metal source on structure and catalytic activity in the aerial epoxidation of olefins. / Pruss, T ; Macquarrie, D J ; Clark, J H .
In: APPLIED CATALYSIS A-GENERAL, Vol. 276, No. 1-2, 25.11.2004, p. 29-37.

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

TY - JOUR

T1 - Pyridine-4-ylmethyl-propyl-amine-organomodified HMS as support for in situ formed cobalt complexes-influence of the metal source on structure and catalytic activity in the aerial epoxidation of olefins

AU - Pruss, T

AU - Macquarrie, D J

AU - Clark, J H

PY - 2004/11/25

Y1 - 2004/11/25

N2 - In this paper we compare the properties and catalytic activities of immobilised forms of in situ formed cobalt complexes of pyridin-4-ylmethylpropyl-amine (PYPA), immobilised via grafting of pyridin-4-ylmethyl-(3-triethoxysilanyl-propyl)-amine on pre-formed HMS, and various cobalt salts, formed in aqueous solution. To investigate the role of peroxo species on the catalytic activity, materials with cobalt-alkyl- or hydroperoxo groups were also prepared by addition of TBHP or H2O2 in the loading step of the preparation. The support material and the catalysts were characterised by STA, DRUV, and N-2 adsorption. All catalysts are active in the aerial oxidation of styrene and, with few exceptions, 1-decene, and exhibit different reactivities and selectivities towards epoxidation. (C) 2003 Elsevier B.V. All rights reserved.

AB - In this paper we compare the properties and catalytic activities of immobilised forms of in situ formed cobalt complexes of pyridin-4-ylmethylpropyl-amine (PYPA), immobilised via grafting of pyridin-4-ylmethyl-(3-triethoxysilanyl-propyl)-amine on pre-formed HMS, and various cobalt salts, formed in aqueous solution. To investigate the role of peroxo species on the catalytic activity, materials with cobalt-alkyl- or hydroperoxo groups were also prepared by addition of TBHP or H2O2 in the loading step of the preparation. The support material and the catalysts were characterised by STA, DRUV, and N-2 adsorption. All catalysts are active in the aerial oxidation of styrene and, with few exceptions, 1-decene, and exhibit different reactivities and selectivities towards epoxidation. (C) 2003 Elsevier B.V. All rights reserved.

KW - supported catalysts

KW - cobalt

KW - oxidation

KW - molecular oxygen

KW - epoxidation

KW - MICELLE-TEMPLATED SILICA

KW - OXIDATION

KW - SURFACE

U2 - 10.1016/j.apcata.2003.12.001

DO - 10.1016/j.apcata.2003.12.001

M3 - Article

SN - 0926-860X

VL - 276

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JO - APPLIED CATALYSIS A-GENERAL

JF - APPLIED CATALYSIS A-GENERAL

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