Well-defined dendrimer encapsulated ruthenium SCILL catalysts for partial hydrogenation of toluene in liquid-phase

Nathan Charles Antonels; Marc Benjamin Williams; Reinout Meijboom; Marco Haumann

doi:10.1016/j.molcata.2016.05.010

Well-defined dendrimer encapsulated ruthenium SCILL catalysts for partial hydrogenation of toluene in liquid-phase

Nathan Charles Antonels, Marc Benjamin Williams, Reinout Meijboom, Marco Haumann

Chemical Sciences

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

18 Citations (Scopus)

Abstract

Dendrimer encapsulated ruthenium nanoparticles (RuDEN) were prepared and immobilized on silica 60 and silica 100. The size of the supported RuDENs was investigated using HRTEM and the generation six G6-RuDEN was found to be the most stable RuDEN upon immobilization. The catalysts were evaluated in the liquid-phase hydrogenation of toluene at a hydrogen pressure of 30 bar and 110 °C. Several ionic liquids were used as coatings for the G5-RuSil100 catalysts to give various Solid Catalysts with Ionic Liquid Layer (SCILL). In each case the selectivity towards methylcyclohexenes was increased compared to the uncoated catalyst, accompanied by an expected decrease in activity with the highest methylcyclohexene selectivity being observed when using [EMIM][NTf₂] as a coating.

Original language	English
Pages (from-to)	156-160
Number of pages	5
Journal	Journal of Molecular Catalysis A: Chemical
Volume	421
DOIs	https://doi.org/10.1016/j.molcata.2016.05.010
Publication status	Published - 1 Sept 2016

Keywords

Dendrimer template
Ionic liquid
Ruthenium
SCILL catalysts
Selective hydrogenation

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology
Physical and Theoretical Chemistry

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10.1016/j.molcata.2016.05.010

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title = "Well-defined dendrimer encapsulated ruthenium SCILL catalysts for partial hydrogenation of toluene in liquid-phase",

abstract = "Dendrimer encapsulated ruthenium nanoparticles (RuDEN) were prepared and immobilized on silica 60 and silica 100. The size of the supported RuDENs was investigated using HRTEM and the generation six G6-RuDEN was found to be the most stable RuDEN upon immobilization. The catalysts were evaluated in the liquid-phase hydrogenation of toluene at a hydrogen pressure of 30 bar and 110 °C. Several ionic liquids were used as coatings for the G5-RuSil100 catalysts to give various Solid Catalysts with Ionic Liquid Layer (SCILL). In each case the selectivity towards methylcyclohexenes was increased compared to the uncoated catalyst, accompanied by an expected decrease in activity with the highest methylcyclohexene selectivity being observed when using [EMIM][NTf2] as a coating.",

keywords = "Dendrimer template, Ionic liquid, Ruthenium, SCILL catalysts, Selective hydrogenation",

author = "Antonels, {Nathan Charles} and {Benjamin Williams}, Marc and Reinout Meijboom and Marco Haumann",

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doi = "10.1016/j.molcata.2016.05.010",

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T1 - Well-defined dendrimer encapsulated ruthenium SCILL catalysts for partial hydrogenation of toluene in liquid-phase

AU - Antonels, Nathan Charles

AU - Benjamin Williams, Marc

AU - Meijboom, Reinout

AU - Haumann, Marco

PY - 2016/9/1

Y1 - 2016/9/1

N2 - Dendrimer encapsulated ruthenium nanoparticles (RuDEN) were prepared and immobilized on silica 60 and silica 100. The size of the supported RuDENs was investigated using HRTEM and the generation six G6-RuDEN was found to be the most stable RuDEN upon immobilization. The catalysts were evaluated in the liquid-phase hydrogenation of toluene at a hydrogen pressure of 30 bar and 110 °C. Several ionic liquids were used as coatings for the G5-RuSil100 catalysts to give various Solid Catalysts with Ionic Liquid Layer (SCILL). In each case the selectivity towards methylcyclohexenes was increased compared to the uncoated catalyst, accompanied by an expected decrease in activity with the highest methylcyclohexene selectivity being observed when using [EMIM][NTf2] as a coating.

AB - Dendrimer encapsulated ruthenium nanoparticles (RuDEN) were prepared and immobilized on silica 60 and silica 100. The size of the supported RuDENs was investigated using HRTEM and the generation six G6-RuDEN was found to be the most stable RuDEN upon immobilization. The catalysts were evaluated in the liquid-phase hydrogenation of toluene at a hydrogen pressure of 30 bar and 110 °C. Several ionic liquids were used as coatings for the G5-RuSil100 catalysts to give various Solid Catalysts with Ionic Liquid Layer (SCILL). In each case the selectivity towards methylcyclohexenes was increased compared to the uncoated catalyst, accompanied by an expected decrease in activity with the highest methylcyclohexene selectivity being observed when using [EMIM][NTf2] as a coating.

KW - Dendrimer template

KW - Ionic liquid

KW - Ruthenium

KW - SCILL catalysts

KW - Selective hydrogenation

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U2 - 10.1016/j.molcata.2016.05.010

DO - 10.1016/j.molcata.2016.05.010

M3 - Article

AN - SCOPUS:84973549902

SN - 1381-1169

VL - 421

SP - 156

EP - 160

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

ER -

Well-defined dendrimer encapsulated ruthenium SCILL catalysts for partial hydrogenation of toluene in liquid-phase

Abstract

Keywords

ASJC Scopus subject areas

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