In-situ formation of NixB/MIL-101(Cr) and Pd/MIL-101(Cr) composites for catalytic hydrogenation of quinoline

[Display omitted] •In situ formation of active catalysts for quinoline hydrogenation by hydrogen.•Almost complete transformation of qunoline to 1,2,3,4-tetrahydroquinoline.•The Ni-based catalyst can be as active as Pd-based one at higher metal loading.•The Ni-based catalyst can be more attractive th...

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Published in:Inorganic chemistry communications 2020-11, Vol.121, p.108203, Article 108203
Main Authors: Asaula, V.M., Lytvynenko, A.S., Mishura, A.M., Kurmach, M.M., Buryanov, V.V., Gavrilenko, K.S., Ryabukhin, S.V., Volochnyuk, D.M., Kolotilov, S.V.
Format: Article
Language:English
Subjects:
Composites
Coordination polymer
Hydrogenation
Nickel
Palladium
Quinoline
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Summary:[Display omitted] •In situ formation of active catalysts for quinoline hydrogenation by hydrogen.•Almost complete transformation of qunoline to 1,2,3,4-tetrahydroquinoline.•The Ni-based catalyst can be as active as Pd-based one at higher metal loading.•The Ni-based catalyst can be more attractive than the Pd-based analog due to higher cost efficiency. In situ reduction of NiCl2 incorporated in porous coordination polymer MIL-101(Cr) by NaBH4 or reduction of PdCl2 incorporated in MIL-101(Cr) by H2 led to formation of NixB/MIL-101(Cr) and Pd/MIL-101(Cr) composites, respectively. Hydrogenation of quinoline at presence of these composites led to formation of 1,2,3,4-tetrahydroquinoline in more than 90% yield, but in the case of Ni-containing catalyst 8 times higher metal loading in the reaction mixture was required to achieve this result (in the same conditions). The composites after the reaction were characterized by TEM and powder XRD.
ISSN:1387-7003
1879-0259
DOI:10.1016/j.inoche.2020.108203