Design of an Intercalated Nano-MoS 2 Hydrophobic Catalyst with High Rim Sites to Improve the Hydrogenation Selectivity in Hydrodesulfurization Reaction - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Applied Catalysis B: Environmental Année : 2021

Design of an Intercalated Nano-MoS 2 Hydrophobic Catalyst with High Rim Sites to Improve the Hydrogenation Selectivity in Hydrodesulfurization Reaction

Résumé

The preparation of the intercalated lamellar hydrophobic nano-MoS 2 (size: 60-100 nm, interlayer spacing: 0.7-1.2 nm) through the substitution of organic amine for inorganic ammonium salt and the subsequent catalytic reaction as a hydrodesulfurization catalyst is presented. The intercalated amine groups broadened the interspacing of the lamellar nano-MoS 2 and promoted the formation of hydrophobic stacking structure consisting of stable monolayers. The high hydrophobicity of the nano-MoS 2 monolayer catalyst was confirmed. The as-synthesized intercalated hydrophobic nano-MoS 2 catalyst with lower steric hindrance and higher number of rim sites showed better hydrodesulfurization performance and higher hydrogenation route selectivity than the traditional MoS 2 catalyst. The conversion of dibenzothiophene using the intercalated hydrophobic nano-MoS 2 catalyst was 86% in comparison to 23% for the traditional MoS 2 catalyst. The intercalated hydrophobic nano-MoS 2 catalyst was stable in five subsequent catalytic cycles.

Domaines

Catalyse
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Dates et versions

hal-03145248 , version 1 (18-02-2021)

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Kun Sun, Hailing Guo, Feng Jiao, Yongming Chai, Yanpeng Li, et al.. Design of an Intercalated Nano-MoS 2 Hydrophobic Catalyst with High Rim Sites to Improve the Hydrogenation Selectivity in Hydrodesulfurization Reaction. Applied Catalysis B: Environmental, 2021, 286, pp.119907. ⟨10.1016/j.apcatb.2021.119907⟩. ⟨hal-03145248⟩
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