On the Nature of the Active Site for the Oxidative Amination of Benzene to Aniline over NiO/ZrO₂ as Cataloreactant

Suspended amination: Semi-batch oxidative synthesis of aniline from benzene and ammonia was performed at atmospheric pressure using a NiO/ZrO2 cataloreactant in a microreactor flow setup. A Langmuir–Hinshelwood mechanism is suggested based on the surface reaction between adsorbed benzene- and ammonia-derived NHx species on metallic Ni surface sites.