Metal–Organic Framework Mediated Cobalt/Nitrogen-Doped Carbon Hybrids as Efficient and Chemoselective Catalysts for the Hydrogenation of Nitroarenes

Xiaohui Sun, Alma I. Olivos-Suarez, L. Oar-Arteta Gonzalez, Elena Rozhko, Dmitrii Osadchii, Anastasiya Bavykina, Freek Kapteijn, Jorge Gascon

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

A Co@N-doped carbon (Co@ NC) hybrid was synthesized by thermal decomposition of the metal–organic framework (MOF) ZIF-67 under N2 atmosphere. These hybrid materials exhibit outstanding catalytic activity and chemoselectivity for the conversion of a wide range of substituted nitroarenes to their corresponding anilines under relatively mild reaction conditions. The high catalytic performance is attributed to the formation of cobalt nanoparticles and to the presence of atomically dispersed Co species in close interaction with nitrogen-doped graphene. Both active species are formed in situ during the pyrolytic transformation of ZIF-67. The catalysts could be reused in consecutive runs, exhibiting a slightly lower activity ascribed to blockage of the active sites by strongly adsorbed reaction species. These results open up a pathway for the design of noble-metal-free solid catalysts for industrial applications.
Original languageEnglish
Pages (from-to)1854-1862
Number of pages9
JournalChemCatChem
Volume9
Issue number10
DOIs
Publication statusPublished - 23 May 2017

Keywords

  • chemoselectivity
  • cobalt
  • deactivation
  • hydrogenation
  • N-doped carbon

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