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

doi:10.1002/cssc.201601427

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

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

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 number and productivity. Moreover, four catalysts were investigated in recycling experiments. Two catalysts containing 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 containing a p-xylyl linker and a bromide anion and different CNHs/bVImiX ratios showed an unprecedented increase of activity after recycling.

Original language	English
Pages (from-to)	1202-1209
Number of pages	8
Journal	ChemSusChem
Volume	10
Issue number	6
Early online date	2017
DOIs	https://doi.org/10.1002/cssc.201601427
Publication status	Published - 22 Mar 2017

Keywords

carbon dioxide conversion
carbon nanohorns
cyclic carbonates
heterogeneous catalysis
imidazolium salts
Imidazoles/chemistry
Epoxy Compounds/chemistry
Carbon Dioxide/chemistry
Nanotubes, Carbon/chemistry
Catalysis
Recycling

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/cssc.201601427

Cite this

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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 number and productivity. Moreover, four catalysts were investigated in recycling experiments. Two catalysts containing 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 containing a p-xylyl linker and a bromide anion and different CNHs/bVImiX ratios showed an unprecedented increase of activity after recycling.",

keywords = "carbon dioxide conversion, carbon nanohorns, cyclic carbonates, heterogeneous catalysis, imidazolium salts, Imidazoles/chemistry, Epoxy Compounds/chemistry, Carbon Dioxide/chemistry, Nanotubes, Carbon/chemistry, Catalysis, Recycling",

author = "Carla Calabrese and Liotta, {Leonarda F.} and {Carbonell Llopis}, Esther and Francesco Giacalone and Michelangelo Gruttadauria and Carmela Aprile",

year = "2017",

month = mar,

day = "22",

doi = "10.1002/cssc.201601427",

language = "English",

volume = "10",

pages = "1202--1209",

journal = "ChemSusChem",

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

T2 - Unprecedented Increase of Catalytic Activity after Recycling

AU - Calabrese, Carla

AU - Liotta, Leonarda F.

AU - Carbonell Llopis, Esther

AU - Giacalone, Francesco

AU - Gruttadauria, Michelangelo

AU - Aprile, Carmela

PY - 2017/3/22

Y1 - 2017/3/22

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 number and productivity. Moreover, four catalysts were investigated in recycling experiments. Two catalysts containing 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 containing 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 number and productivity. Moreover, four catalysts were investigated in recycling experiments. Two catalysts containing 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 containing a p-xylyl linker and a bromide anion and different CNHs/bVImiX ratios showed an unprecedented increase of activity after recycling.

KW - carbon dioxide conversion

KW - carbon nanohorns

KW - cyclic carbonates

KW - heterogeneous catalysis

KW - imidazolium salts

KW - Imidazoles/chemistry

KW - Epoxy Compounds/chemistry

KW - Carbon Dioxide/chemistry

KW - Nanotubes, Carbon/chemistry

KW - Catalysis

KW - Recycling

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U2 - 10.1002/cssc.201601427

DO - 10.1002/cssc.201601427

M3 - Article

C2 - 27897394

SN - 1864-5631

VL - 10

SP - 1202

EP - 1209

JO - ChemSusChem

JF - ChemSusChem

IS - 6

ER -

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

Abstract

Keywords

UN SDGs

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Morphology - Imaging

Physical Chemistry and characterization(PC2)

Design of novel imidazolium based nanostructures for sastainable catalytic applications

Cite this

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

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Equipment

Morphology - Imaging

Physical Chemistry and characterization(PC2)

Student theses

Design of novel imidazolium based nanostructures for sastainable catalytic applications

Cite this