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Article Dans Une Revue Applied Catalysis A : General Année : 2021

Hybrid CoMoS-polyaniline nanowires catalysts for hydrodesulfurisation applications

Résumé

Catalytic performances of promoted CoMoS catalysts were greatly improved via a synthesis strategy based on the structuration of the active phase using self-assembled PANI (Polyaniline) nanowires followed by an addition step of cobalt acetylacetonate on oxidic or sulfided Mo-based hybrids. Taking into account the different promotion levels, slabs lengths determined by XPS and TEM, the highest rate constants normalized by mol of (MoS2)edges+corner in the hydrodesulfurization of 3-methylthiophene were obtained when Co(acac)2 is deposited on a MoS3/PANI hybrid precursor. The normalized HDS rate constants for the different samples followed the increase in Co/Moedges+corner atomic ratios whereas an optimum for HDS/HYD selectivity in the same ratio was observed.

Domaines

Matériaux Catalyse
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Dates et versions

hal-03290101 , version 1 (19-07-2021)

Identifiants

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Sourav Ghosh, Laurence Courthéoux, Sylvette Brunet, Patrick Lacroix-Desmazes, Annie Pradel, et al.. Hybrid CoMoS-polyaniline nanowires catalysts for hydrodesulfurisation applications. Applied Catalysis A : General, 2021, 623, pp.118264. ⟨10.1016/j.apcata.2021.118264⟩. ⟨hal-03290101⟩
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