Immobilisation of a molecular epoxidation catalyst on UiO-66 and -67: the effect of pore size on catalyst activity and recycling

Marlene Kaposi; Mirza Cokoja; Christine H. Hutterer; Simone A. Hauser; Tobias Kaposi; Florian Klappenberger; Alexander Pöthig; Johannes V. Barth; Wolfgang A. Herrmann; Fritz E. Kühn

doi:10.1039/c5dt01340b

Immobilisation of a molecular epoxidation catalyst on UiO-66 and -67: the effect of pore size on catalyst activity and recycling

Marlene Kaposi, Mirza Cokoja, Christine H. Hutterer, Simone A. Hauser, Tobias Kaposi, Florian Klappenberger, Alexander Pöthig, Johannes V. Barth, Wolfgang A. Herrmann, Fritz E. Kühn

Technical University of Munich

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

45 Scopus citations

Abstract

Amino-functionalised metal-organic frameworks UiO-66 and -67 were post-synthetically modified with salicylaldehyde. A molybdenum complex was immobilised on the resulting materials. They were characterised by ¹³C-MAS-NMR, XPS and PXRD to confirm immobilisation and stability. The immobilised complex is an active and reusable catalyst for olefin epoxidation with tert-butyl hydroperoxide (TBHP) as an oxidant. It is shown that the effective pore size, probed with Brunauer-Emmett-Teller (BET) surface area analysis and the number of amino groups affect the diffusion of reactants and products, as well as catalyst recycling.

Original language	English
Pages (from-to)	15976-15983
Number of pages	8
Journal	Dalton Transactions
Volume	44
Issue number	36
DOIs	https://doi.org/10.1039/c5dt01340b
State	Published - 31 Jul 2015

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title = "Immobilisation of a molecular epoxidation catalyst on UiO-66 and -67: the effect of pore size on catalyst activity and recycling",

abstract = "Amino-functionalised metal-organic frameworks UiO-66 and -67 were post-synthetically modified with salicylaldehyde. A molybdenum complex was immobilised on the resulting materials. They were characterised by 13C-MAS-NMR, XPS and PXRD to confirm immobilisation and stability. The immobilised complex is an active and reusable catalyst for olefin epoxidation with tert-butyl hydroperoxide (TBHP) as an oxidant. It is shown that the effective pore size, probed with Brunauer-Emmett-Teller (BET) surface area analysis and the number of amino groups affect the diffusion of reactants and products, as well as catalyst recycling.",

author = "Marlene Kaposi and Mirza Cokoja and Hutterer, {Christine H.} and Hauser, {Simone A.} and Tobias Kaposi and Florian Klappenberger and Alexander P{\"o}thig and Barth, {Johannes V.} and Herrmann, {Wolfgang A.} and K{\"u}hn, {Fritz E.}",

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year = "2015",

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doi = "10.1039/c5dt01340b",

language = "English",

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TY - JOUR

T1 - Immobilisation of a molecular epoxidation catalyst on UiO-66 and -67

T2 - the effect of pore size on catalyst activity and recycling

AU - Kaposi, Marlene

AU - Cokoja, Mirza

AU - Hutterer, Christine H.

AU - Hauser, Simone A.

AU - Kaposi, Tobias

AU - Klappenberger, Florian

AU - Pöthig, Alexander

AU - Barth, Johannes V.

AU - Herrmann, Wolfgang A.

AU - Kühn, Fritz E.

PY - 2015/7/31

Y1 - 2015/7/31

N2 - Amino-functionalised metal-organic frameworks UiO-66 and -67 were post-synthetically modified with salicylaldehyde. A molybdenum complex was immobilised on the resulting materials. They were characterised by 13C-MAS-NMR, XPS and PXRD to confirm immobilisation and stability. The immobilised complex is an active and reusable catalyst for olefin epoxidation with tert-butyl hydroperoxide (TBHP) as an oxidant. It is shown that the effective pore size, probed with Brunauer-Emmett-Teller (BET) surface area analysis and the number of amino groups affect the diffusion of reactants and products, as well as catalyst recycling.

AB - Amino-functionalised metal-organic frameworks UiO-66 and -67 were post-synthetically modified with salicylaldehyde. A molybdenum complex was immobilised on the resulting materials. They were characterised by 13C-MAS-NMR, XPS and PXRD to confirm immobilisation and stability. The immobilised complex is an active and reusable catalyst for olefin epoxidation with tert-butyl hydroperoxide (TBHP) as an oxidant. It is shown that the effective pore size, probed with Brunauer-Emmett-Teller (BET) surface area analysis and the number of amino groups affect the diffusion of reactants and products, as well as catalyst recycling.

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U2 - 10.1039/c5dt01340b

DO - 10.1039/c5dt01340b

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VL - 44

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JO - Dalton Transactions

JF - Dalton Transactions

IS - 36

ER -

Immobilisation of a molecular epoxidation catalyst on UiO-66 and -67: the effect of pore size on catalyst activity and recycling

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