The catalytic performance of small Pd-nanoparticles (NPs) (2.0 nm), partially covered bychemisorbed oxygen atoms, and of Pd-acetate, both stabilized by 2,2-bipyridine-end functional-ized poly(ethyleneglycol) monomethylether was compared in the selective hydration of nitriles toamide in water under mild reaction conditions (353 K). Regardless of the nitrile substrate employed,the Pd-NP-based catalyst showed much higher normalized TON-values (i.e. refereeing to the amount ofsurface Pd atoms) compared to the Pd(II) macrocomplex, as far as the first catalytic run was considered.Deactivation of the Pd-NP-based catalyst was significant due to the formation of a hydroxide-waterlayer on the NPs’ surface.
Nitrile hydration to amide in water: Palladium-based nanoparticles vs molecular catalyst / Oberhauser, W.; Bartoli, Mattia; Petrucci, Giorgio; Bandelli, Damiano; Frediani, Marco; Capozzoli, Laura; Cepek, Cinzia; Bhardwaj, Sunil; Rosi, Luca. - In: JOURNAL OF MOLECULAR CATALYSIS. A: CHEMICAL. - ISSN 1381-1169. - STAMPA. - 410:(2015), pp. 26-33. [10.1016/j.molcata.2015.09.003]
Nitrile hydration to amide in water: Palladium-based nanoparticles vs molecular catalyst
BARTOLI, MATTIA;PETRUCCI, GIORGIO;FREDIANI, MARCO;ROSI, LUCA
2015
Abstract
The catalytic performance of small Pd-nanoparticles (NPs) (2.0 nm), partially covered bychemisorbed oxygen atoms, and of Pd-acetate, both stabilized by 2,2-bipyridine-end functional-ized poly(ethyleneglycol) monomethylether was compared in the selective hydration of nitriles toamide in water under mild reaction conditions (353 K). Regardless of the nitrile substrate employed,the Pd-NP-based catalyst showed much higher normalized TON-values (i.e. refereeing to the amount ofsurface Pd atoms) compared to the Pd(II) macrocomplex, as far as the first catalytic run was considered.Deactivation of the Pd-NP-based catalyst was significant due to the formation of a hydroxide-waterlayer on the NPs’ surface.File | Dimensione | Formato | |
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J. Mol Cat 2015 410 26-33.pdf
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