An efficient NiCu@C/Al2O3 catalyst for selective hydrogenation of acetylene

Abstract

The development of non-noble metal catalysts for selective hydrogenation still remains a challenge. Herein, NiCu@carbon core–shell nanoparticles supported on Al₂O₃ (NiCu@C/Al₂O₃) were prepared, which showed enhanced catalytic performance of acetylene-selective hydrogenation in comparison with NiCu/Al₂O₃ without carbon encapsulation. In detail, NiCu@C/Al₂O₃ displayed high ethylene selectivity (>86%) even at an acetylene conversion of 100% and excellent stability (>90 h). Thus, NiCu@C/Al₂O₃ exhibited great potential as an alternative to Pd-based catalysts for acetylene-selective hydrogenation.