Selective Semihydrogenation of Alkynes with N-Graphitic-Modified Cobalt Nanoparticles Supported on Silica

Feng Chen, Carsten Kreyenschulte, Jörg Radnik, Henrik Lund, Annette Enrica Surkus, Kathrin Junge, Matthias Beller

Research output: Contribution to journalArticlepeer-review

105 Scopus citations

Abstract

For the first time N-graphitic-modified cobalt nanoparticles (Co/phen@SiO2-800) are shown to be active in the semihydrogenation of alkynes to alkenes. Key to success for efficient catalysis is both the modification of the metal nanoparticles by nitrogen-doped graphitic layers and the use of silica as support. Several internal alkynes are converted to the Z isomer in high yields with up to 93% selectivity. In addition, a variety of terminal alkynes, including sensitive functionalized compounds, are readily converted into terminal alkenes. Notably, this non-noble-metal catalyst allows for the purification of alkenes by selective hydrogenation of the corresponding alkyne in the presence of an excess of olefin.

Original languageEnglish
Pages (from-to)1526-1532
Number of pages7
JournalACS Catalysis
Volume7
Issue number3
DOIs
StatePublished - 3 Mar 2017
Externally publishedYes

Keywords

  • cobalt nanoparticles
  • heterogeneous catalysis
  • nitrogen-doped material
  • semihydrogenation
  • silica

Fingerprint

Dive into the research topics of 'Selective Semihydrogenation of Alkynes with N-Graphitic-Modified Cobalt Nanoparticles Supported on Silica'. Together they form a unique fingerprint.

Cite this