Tuning active sites in MoS2-based catalysts via H2O2 etching to enhance hydrodesulfurization performance

Highly efficient hydrodesulfurization driven by an in-situ reconstruction of ammonium/amine intercalated MoS2 catalysts

“…This work takes a big step forward in determining the catalytic effect of 1T phase and S vacancies, and thereby provides a more comprehensive understanding of HDS on MoS 2 catalysts. 24 , 26

Figure 5 Investigation of the HDS mechanism on MoS 2 catalysts (A and B) Catalytic performance between functional sites. (C) 1 H NMR of used MoS 2 catalysts.

…”

“…Although numerous strategies, including morphological regulation (stacked layers and size), defect engineering and metal doping, were developed to improve the HDS performance of MoS 2 , the symbiosis of 1T-2H MoS 2 were rarely reported to the best of our knowledge. 23 , 24 , 25 The original discussion of 1T-2H MoS 2 in HDS system could date back to the report of Cao and co-workers in 2020, in which DBT conversion of ∼80% was obtained over 63.5% 1T phase MoS 2 -water-ethanol-gly catalyst prepared by solvothermal method under the environment of water, ethanol, and glycerin. 26 Further studies were also carried out in 2022 using oxalic acid in place of glycerol to further increase the fraction of 1T phase in MoS 2 .…”