Relationship between the structure and catalytic performance of MoS 2 with different surfactant-assisted syntheses in the hydrodesulfurization reaction of 4,6-DMDBT

Surfactants are important factors in the hydrothermal synthesis of MoS with different morphologies. Herein, we report the synthesis of MoS the hydrothermal method combined with a single-source precursor with the assistance of different surfactants (CTAB/SDS/SDBS). The synthesis mechanisms of MoS with different morphologies and their effects on 4,6-DMDBT in hydrodesulfurization (HDS) have been systematically studied. MoS -CTAB was prepared by the adsorption of molybdate radicals, nucleation and formation. MoS -SDS and MoS -SDBS were synthesized four steps, namely, adsorption, insertion, exfoliation and assembly, and the relationship between the morphology-structure-performance of MoS in the hydrodesulfurization of 4,6-DMDBT was investigated. It was established that the desulfurization rate of MoS , HYD ratio and selectivity of the MoS increased in the order: MoS -SDBS > MoS -CTAB > MoS -SDS, which exhibited a positive correlation with the average number of layers and dispersion, and a negative correlation with the average slab length and the ratio of the Mo edge/corner sites of MoS . Among all the MoS , MoS -SDBS exhibited the best HDS performance.