Journal
ACS CATALYSIS
Volume 7, Issue 3, Pages 1526-1532Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.6b03140
Keywords
cobalt nanoparticles; heterogeneous catalysis; semihydrogenation; nitrogen-doped material; silica
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Funding
- Federal Ministry of Education and Research (BMBF)
- State of Mecklenburg-Vorpommern
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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.
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