Résumé
| langue | Anglais |
|---|---|
| journal | ChemSusChem |
| Les DOIs | |
| état | E-pub ahead of print - 2017 |
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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 revue › Article
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 -