Hydrolysis of Nitriles

Schulze, B.

doi:10.1002/9783527618262.ch12a

Cited by 12 publications

(1 citation statement)

References 76 publications

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“…Hydrolysis of nitriles to amides has been widely explored in the field of organic synthesis. − The high catalytic activity of CeO 2 for nitrile hydrolysis ,− is originated from the surface oxygen vacancy sites and their capability of the reversible Ce 3+ /Ce 4+ redox pair . Herein, the hydrolysis of benzonitrile was performed as another model reaction to verify the successful pressure regulation on the surface properties of CeO 2 nanorods.…”

Section: Resultsmentioning

confidence: 99%

Pressure Regulations on the Surface Properties of CeO₂ Nanorods and Their Catalytic Activity for CO Oxidation and Nitrile Hydrolysis Reactions

Zhang²,

Gao³

et al. 2016

ACS Appl. Mater. Interfaces

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Surface properties of nanoscale CeO2 catalysts in terms of the surface Ce(3+) fraction and concentration of oxygen vacancy can affect their catalytic performance significantly. Continual adjustment on surface properties of CeO2 with the morphological preservation has not been realized by synthetic methods. The revisited studies show that surface properties of CeO2 nanorods can be effectively regulated by synthetic pressures while the rodlike morphology is well-preserved. Such phenomena are ascribed to the contact possibility between Ce(3+) species and dissolved O2, which is balanced by the rapidly increased and gradually saturated dissolution/recrystallization rate of Ce(OH)3 and linearly increased concentration of dissolved O2 with the increase of total air pressure or partial pressure of O2. Surface-property-dependent catalytic activity of CeO2 nanorods synthesized under various pressures was also demonstrated in two benchmark reactions-catalytic oxidation of CO and hydrolysis of nitrile. Such a finding of the pressure regulation on the reducible metal oxides provides an effective approach to rationally design novel catalysts for specific reactions, where ceria are supports, promoters, or actives.

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