The Influence of Adsorption Processes on Structural and Catalytic Properties of Nickel

The effect of the conditions for carrying out the reaction of liquid-phase hydrogenation of the nitro group on a bulk nickel catalyst in a binary water–alcohol solution has been studied. It is shown that each stage of the catalytic process leads to a change in the structure of the active nickel surface. The influence of hydrogen adsorption, adsorption of catalytic poison, and chemical effects on the catalyst surface, as well as the hydrodynamic conditions of the process on the catalyst particle size, structure, and surface morphology, was studied. It has been experimentally proven that the resulting adsorption–catalytic deformation leads to an increase in the rates of reduction of compounds containing a nitro group at low degrees of conversion.