Imidazolium-Functionalized Carbon Nanohorns for the Conversion of Carbon Dioxide: Unprecedented Increase of Catalytic Activity after Recycling

Carla Calabrese, Leonarda F. Liotta, Esther Carbonell Llopis, Francesco Giacalone, Michelangelo Gruttadauria, Carmela Aprile

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Six new hybrid materials composed of carbon nanohorns (CNHs) and highly cross-linked imidazolium salts were easily synthesized using a one-step procedure based on the radical oligomerization of bis-vinylimidazolium salts (bVImiX) in the presence of pristine CNHs. The hybrid materials were characterized and employed as the sole catalysts for the conversion of carbon dioxide into cyclic carbonate by reaction with epoxides. The solids displayed excellent turnover no. and productivity. Moreover, four catalysts were investigated in recycling expts. Two catalysts contg. an octyl linker between the imidazolium units and a bromide or an iodide anion showed no loss in activity after three cycles. The other two catalysts contg. a p-xylyl linker and a bromide anion and different CNHs/bVImiX ratios showed an unprecedented increase of activity after recycling.
langueAnglais
journalChemSusChem
Les DOIs
étatE-pub ahead of print - 2017

Empreinte digitale

Nanohorns
Carbon Dioxide
Recycling
Catalyst activity
Carbon
Catalysts
Carbon dioxide
recycling
carbon dioxide
catalyst
carbon
Hybrid materials
Bromides
Anions
Salts
Negative ions
bromide
anion
salt
material

Citer ceci

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title = "Imidazolium-Functionalized Carbon Nanohorns for the Conversion of Carbon Dioxide: Unprecedented Increase of Catalytic Activity after Recycling",
abstract = "Six new hybrid materials composed of carbon nanohorns (CNHs) and highly cross-linked imidazolium salts were easily synthesized using a one-step procedure based on the radical oligomerization of bis-vinylimidazolium salts (bVImiX) in the presence of pristine CNHs. The hybrid materials were characterized and employed as the sole catalysts for the conversion of carbon dioxide into cyclic carbonate by reaction with epoxides. The solids displayed excellent turnover no. and productivity. Moreover, four catalysts were investigated in recycling expts. Two catalysts contg. an octyl linker between the imidazolium units and a bromide or an iodide anion showed no loss in activity after three cycles. The other two catalysts contg. a p-xylyl linker and a bromide anion and different CNHs/bVImiX ratios showed an unprecedented increase of activity after recycling.",
author = "Carla Calabrese and Liotta, {Leonarda F.} and {Carbonell Llopis}, Esther and Francesco Giacalone and Michelangelo Gruttadauria and Carmela Aprile",
note = "\{circledC} 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.",
year = "2017",
doi = "10.1002/cssc.201601427",
language = "English",
journal = "ChemSusChem",
issn = "1864-5631",
publisher = "Wiley-VCH Verlag",

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Imidazolium-Functionalized Carbon Nanohorns for the Conversion of Carbon Dioxide : Unprecedented Increase of Catalytic Activity after Recycling. / Calabrese, Carla; Liotta, Leonarda F.; Carbonell Llopis, Esther; Giacalone, Francesco; Gruttadauria, Michelangelo; Aprile, Carmela.

Dans: ChemSusChem, 2017.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Imidazolium-Functionalized Carbon Nanohorns for the Conversion of Carbon Dioxide

T2 - ChemSusChem

AU - Calabrese,Carla

AU - Liotta,Leonarda F.

AU - Carbonell Llopis,Esther

AU - Giacalone,Francesco

AU - Gruttadauria,Michelangelo

AU - Aprile,Carmela

N1 - © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

PY - 2017

Y1 - 2017

N2 - Six new hybrid materials composed of carbon nanohorns (CNHs) and highly cross-linked imidazolium salts were easily synthesized using a one-step procedure based on the radical oligomerization of bis-vinylimidazolium salts (bVImiX) in the presence of pristine CNHs. The hybrid materials were characterized and employed as the sole catalysts for the conversion of carbon dioxide into cyclic carbonate by reaction with epoxides. The solids displayed excellent turnover no. and productivity. Moreover, four catalysts were investigated in recycling expts. Two catalysts contg. an octyl linker between the imidazolium units and a bromide or an iodide anion showed no loss in activity after three cycles. The other two catalysts contg. a p-xylyl linker and a bromide anion and different CNHs/bVImiX ratios showed an unprecedented increase of activity after recycling.

AB - Six new hybrid materials composed of carbon nanohorns (CNHs) and highly cross-linked imidazolium salts were easily synthesized using a one-step procedure based on the radical oligomerization of bis-vinylimidazolium salts (bVImiX) in the presence of pristine CNHs. The hybrid materials were characterized and employed as the sole catalysts for the conversion of carbon dioxide into cyclic carbonate by reaction with epoxides. The solids displayed excellent turnover no. and productivity. Moreover, four catalysts were investigated in recycling expts. Two catalysts contg. an octyl linker between the imidazolium units and a bromide or an iodide anion showed no loss in activity after three cycles. The other two catalysts contg. a p-xylyl linker and a bromide anion and different CNHs/bVImiX ratios showed an unprecedented increase of activity after recycling.

U2 - 10.1002/cssc.201601427

DO - 10.1002/cssc.201601427

M3 - Article

JO - ChemSusChem

JF - ChemSusChem

SN - 1864-5631

ER -