Nitrogen-Doped Carbon Encapsulated Nickel/Cobalt Nanoparticle Catalysts for Olefin Migration of Allylarenes

Søren Kramer, Jerrik Jørgen Mielby, Kasper Spanggård Buss, Takeshi Kasama, Søren Kegnæs

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Abstract

Olefin migration of allylarenes is typically performed with precious metal-based homogeneous catalysts. In contrast, very limited progress has been made using cheap, earth-abundant base metals as heterogeneous catalysts for these transformations - in spite of the obvious economic and environmental advantages. Herein, we report on the use of an easily prepared heterogeneous catalyst material for the migration of olefins, in particular allylarenes. The catalyst material consists of nickel/cobalt alloy nanoparticles encapsulated in nitrogen-doped carbon shells. The encapsulated nanoparticles are stable in air and easily collected by centrifugation, filtration, or magnetic separation. Furthermore, we demonstrate that the catalysts can be reused several times providing continuously high yields of the olefin migration product.
Original languageEnglish
JournalChemCatChem
Volume9
Issue number15
Pages (from-to)2930–2934
ISSN1867-3880
DOIs
Publication statusPublished - 2017

Keywords

  • Alkenes
  • Base metals
  • Migration
  • Heterogeneous catalysis
  • Nanoparticles

Cite this

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title = "Nitrogen-Doped Carbon Encapsulated Nickel/Cobalt Nanoparticle Catalysts for Olefin Migration of Allylarenes",
abstract = "Olefin migration of allylarenes is typically performed with precious metal-based homogeneous catalysts. In contrast, very limited progress has been made using cheap, earth-abundant base metals as heterogeneous catalysts for these transformations - in spite of the obvious economic and environmental advantages. Herein, we report on the use of an easily prepared heterogeneous catalyst material for the migration of olefins, in particular allylarenes. The catalyst material consists of nickel/cobalt alloy nanoparticles encapsulated in nitrogen-doped carbon shells. The encapsulated nanoparticles are stable in air and easily collected by centrifugation, filtration, or magnetic separation. Furthermore, we demonstrate that the catalysts can be reused several times providing continuously high yields of the olefin migration product.",
keywords = "Alkenes, Base metals, Migration, Heterogeneous catalysis, Nanoparticles",
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Nitrogen-Doped Carbon Encapsulated Nickel/Cobalt Nanoparticle Catalysts for Olefin Migration of Allylarenes. / Kramer, Søren; Mielby, Jerrik Jørgen; Buss, Kasper Spanggård; Kasama, Takeshi; Kegnæs, Søren.

In: ChemCatChem, Vol. 9, No. 15, 2017, p. 2930–2934.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Nitrogen-Doped Carbon Encapsulated Nickel/Cobalt Nanoparticle Catalysts for Olefin Migration of Allylarenes

AU - Kramer, Søren

AU - Mielby, Jerrik Jørgen

AU - Buss, Kasper Spanggård

AU - Kasama, Takeshi

AU - Kegnæs, Søren

PY - 2017

Y1 - 2017

N2 - Olefin migration of allylarenes is typically performed with precious metal-based homogeneous catalysts. In contrast, very limited progress has been made using cheap, earth-abundant base metals as heterogeneous catalysts for these transformations - in spite of the obvious economic and environmental advantages. Herein, we report on the use of an easily prepared heterogeneous catalyst material for the migration of olefins, in particular allylarenes. The catalyst material consists of nickel/cobalt alloy nanoparticles encapsulated in nitrogen-doped carbon shells. The encapsulated nanoparticles are stable in air and easily collected by centrifugation, filtration, or magnetic separation. Furthermore, we demonstrate that the catalysts can be reused several times providing continuously high yields of the olefin migration product.

AB - Olefin migration of allylarenes is typically performed with precious metal-based homogeneous catalysts. In contrast, very limited progress has been made using cheap, earth-abundant base metals as heterogeneous catalysts for these transformations - in spite of the obvious economic and environmental advantages. Herein, we report on the use of an easily prepared heterogeneous catalyst material for the migration of olefins, in particular allylarenes. The catalyst material consists of nickel/cobalt alloy nanoparticles encapsulated in nitrogen-doped carbon shells. The encapsulated nanoparticles are stable in air and easily collected by centrifugation, filtration, or magnetic separation. Furthermore, we demonstrate that the catalysts can be reused several times providing continuously high yields of the olefin migration product.

KW - Alkenes

KW - Base metals

KW - Migration

KW - Heterogeneous catalysis

KW - Nanoparticles

U2 - 10.1002/cctc.201700316

DO - 10.1002/cctc.201700316

M3 - Journal article

VL - 9

SP - 2930

EP - 2934

JO - ChemCatChem

JF - ChemCatChem

SN - 1867-3880

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