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

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

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

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 languageEnglish
Pages (from-to)1202-1209
Number of pages8
JournalChemSusChem
Volume10
Publication statusPublished - 2017

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • General Chemical Engineering
  • General Materials Science
  • General Energy

Fingerprint Dive into the research topics of 'Imidazolium-Functionalized Carbon Nanohorns for the Conversion of Carbon Dioxide: Unprecedented Increase of Catalytic Activity after Recycling'. Together they form a unique fingerprint.

Cite this