Print Email Facebook Twitter Covalent organic frameworks as supports for a molecular Ni based ethylene oligomerization catalyst for the synthesis of long chain olefins Title Covalent organic frameworks as supports for a molecular Ni based ethylene oligomerization catalyst for the synthesis of long chain olefins Author Rozhko, E. (TU Delft ChemE/Catalysis Engineering) Bavykina, A.V. (TU Delft ChemE/Catalysis Engineering) Osadchii, D. (TU Delft ChemE/Catalysis Engineering) Makkee, M. (TU Delft ChemE/Catalysis Engineering) Gascon, Jorge (TU Delft ChemE/Catalysis Engineering) Date 2017-01-01 Abstract The use of two different classes of covalent organic frameworks (covalent triazine and imine linked frameworks) as supports for molecular Ni2+ catalysts is presented. For COFs, a large concentration of N heteroatoms, either in the form of quasi bipyridine or as diiminopyridine moieties, allows for the coordination of NiBr2 to the scaffold of the porous polymers. When applied as catalysts in the oligomerization of ethylene under mild reaction conditions (15 bar, 50 °C), these new catalysts display an activity comparable to those of their homogeneous counterpart and a fivefold higher selectivity to C6 + olefins. Accumulation of long chain hydrocarbons within the porosity of the COFs leads to reversible deactivation. Full activity and selectivity of the best catalysts can be recovered upon washing with dichlorobenzene. Subject Covalent organic frameworkEthylene oligomerizationNi catalystPorous aromatic polymers To reference this document use: http://resolver.tudelft.nl/uuid:0a039186-41cf-40e4-8fa2-8cca3f82b0ea DOI https://doi.org/10.1016/j.jcat.2016.11.030 ISSN 0021-9517 Source Journal of Catalysis, 345, 270-280 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2017 E. Rozhko, A.V. Bavykina, D. Osadchii, M. Makkee, Jorge Gascon Files PDF Rozhko_et_al_revised.pdf 1.06 MB Close viewer /islandora/object/uuid:0a039186-41cf-40e4-8fa2-8cca3f82b0ea/datastream/OBJ/view