Factors determining the chemoselectivity of phosphorus-modified palladium catalysts in the hydrogenation of chloronitrobenzenes
- Autores: Skripov N.I.1, Belykh L.B.1, Sterenchuk T.P.1, Akimov V.V.2, Tauson V.L.2, Schmidt F.K.1
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Afiliações:
- Irkutsk State University
- Vinogradov Institute of Geochemistry, Siberian Branch
- Edição: Volume 58, Nº 1 (2017)
- Páginas: 34-45
- Seção: Article
- URL: https://journal-vniispk.ru/0023-1584/article/view/162929
- DOI: https://doi.org/10.1134/S0023158417010104
- ID: 162929
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Resumo
The precursor nature effect on the state of the Pd–P surface layer in palladium catalysts and on their properties in the liquid-phase hydrogenation of chloronitrobenzenes under mild conditions has been investigated. A general feature of the Pd–P-containing nanoparticles obtained from different precursors and white phosphorus at P/Pd = 0.3 (PdCl2 precursor) and 0.7 (Pd(acac)2 precursor) is that their surface contains palladium in phosphide form (BE(Pd3d5/2) = 336.2 eV and BE(Р2р) = 128.9 eV) and Pd(0) clusters (BE(Pd3d5/2) = 335.7 eV). Factors having an effect on the chemoselectivity of the palladium catalysts in chloronitrobenzenes hydrogenation are considered, including the formation of small palladium clusters responsible for hydrogenation under mild conditions.
Sobre autores
N. Skripov
Irkutsk State University
Email: belykh@chem.isu.ru
Rússia, Irkutsk, 664003
L. Belykh
Irkutsk State University
Autor responsável pela correspondência
Email: belykh@chem.isu.ru
Rússia, Irkutsk, 664003
T. Sterenchuk
Irkutsk State University
Email: belykh@chem.isu.ru
Rússia, Irkutsk, 664003
V. Akimov
Vinogradov Institute of Geochemistry, Siberian Branch
Email: belykh@chem.isu.ru
Rússia, Irkutsk, 664033
V. Tauson
Vinogradov Institute of Geochemistry, Siberian Branch
Email: belykh@chem.isu.ru
Rússia, Irkutsk, 664033
F. Schmidt
Irkutsk State University
Email: belykh@chem.isu.ru
Rússia, Irkutsk, 664003
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