Cellulose-supported PdNi bimetal catalyst for selective nitriles hydrogenation

A kind of bimetallic catalyst, 1% Pd-5% Ni/Cellulose, was successfully fabricated using natural cellulose as support, achieving highly selective catalytic hydrogenation of nitriles to secondary amines. The abundant hydroxyl groups in cellulose facilitated enhanced dispersion of loaded metals during reduction. Moreover, the presence of Pd further promoted Ni dispersion, and their mutual interaction led to the formation of an alloy structure during the reduction process. This synergistic effect significantly enhanced both reaction activity and selectivity for the conversion of nitriles to secondary amines. More than 95% conversion for nitriles and 95% selectivity to secondary amines was achieved in the hydrogenation of nitriles. This work provides an effective strategy for nitrile hydrogenation reactions while aligning perfectly with national development strategies of green and low-carbon initiatives. This article is part of the theme issue 'Surfaces, interfaces and heterogeneous catalysis'.