Ni Promotion by Fe: What Benefits for Catalytic Hydrogenation?

Dichao Shi (1) , Robert Wojcieszak (1) , Sébastien Paul (1) , Eric Marceau (1)

1 UCCS - Unité de Catalyse et Chimie du Solide - UMR 8181

Metallic nickel is known to efficiently catalyze hydrogenation reactions, but one of its major drawbacks lies in its lack of selectivity, linked to side-reactions of hydrogenolysis and over-hydrogenation. More selective hydrogenations can be obtained upon the introduction of a second metal in combination with Ni. Fe is an interesting choice, as it is a cheap and abundant metal. This review aims at discussing the advantages and constraints brought by the preparation procedures of bimetallic supported Ni-Fe nanoparticles, and at analyzing the benefits one can draw by substituting Ni-Fe supported catalysts for Ni monometallic systems for the catalytic hydrogenation of organic molecules. Specific formulations, such as Ni 75 Fe 25 , will be singled out for their high activity or selectivity, and the various hypotheses behind the roles played by Fe will be summarized.

Mots clés: Nickel; iron; bimetallic catalysts; hydrogenation; hydrogenolysis

Domaines: Chimie; Catalyse; Matériaux

Dichao Shi, Robert Wojcieszak, Sébastien Paul, Eric Marceau. Ni Promotion by Fe: What Benefits for Catalytic Hydrogenation?. Catalysts, 2019, 9 (5), pp.451. ⟨10.3390/catal9050451⟩. ⟨hal-02324303⟩