Preparation and Properties of La/Ni-MoS2 Composites in Catalytic Hydrogenation of Sulfolene

Abstract

Effect of ultrasonic waves, premonitory LixMoS2 and La/Ni-MoS2 composites were prepared by n-butyl lithium intercalating in the MoS2 layers, using the single-molecular-layer exfoliated-restacked technology. The effect of catalyst on the performance was investigated with catalytic hydrogenation of sulfolene over composites as probe reaction. The catalyst evaluation results show that the optimum atomic ratio, hydrogen pressure and reactive temperature were n(La):n(Ni) = 0.05, 2.5 MPa and 60 °C, respectively. Under such condition, conversion of sulfolene was 99.8%, the yield of sulfolane reached 95.5%.