Journal
NANOSCALE
Volume 14, Issue 26, Pages 9341-9348Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2nr01722a
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Funding
- National Natural Science Foundation of China [21573032, 21773021]
- Fundamental Research Funds for the Central Universities [DUT20ZD217]
- Natural Science Foundation of Liaoning Province [2019JH3/30100001]
- Liaoning Revitalization Talents Program [XLYC1802030]
- Natural Science Foundation of Inner Mongolia [2020BS02009]
- Doctoral Scientific Research Foundation of Inner Mongolia University for Nationalities [BS481]
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An efficient and highly selective heterogeneous catalyst system using unsupported palladium nanopores (PdNPore) was developed for nitrile hydrogenation. The PdNPore catalyst demonstrated high activity and excellent selectivity, producing primary amines with satisfactory to excellent yields. The catalyst could be easily recovered and reused without any loss of catalytic activity.
An efficient and highly selective heterogeneous catalyst system for nitrile hydrogenation was developed using unsupported palladium nanopores (PdNPore). The PdNPore-catalyzed selective hydrogenation of nitriles proceeded smoothly, without any additives, under mild conditions (low H-2 pressure and low temperature) to yield primary amines with satisfactory to excellent yields. Systematic studies demonstrated that the high activity and excellent selectivity of the PdNPore originated from its good Lewis acidity and porous structure. No palladium leached from the PdNPore during the hydrogenation reaction. Moreover, the catalyst was easily recovered and reused without any loss of catalytic activity. A deuterium-hydrogen exchange reaction clearly indicated that the present hydrogenation involves heterolytic H-2 splitting on the surface of the PdNPore catalyst.
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