Molybdenum sulfide nanoparticles prepared using starch as capping agent. Redispersion and activity in Athabasca Bitumen hydrotreating

Novel Impregnation–Deposition Method to Synthesize a Presulfided MoS2/Al2O3 Catalyst and Its Application in Hydrodesulfurization

“…For the catalyst MoS 2 -ID/Al 2 O 3 prepared by the impregnation–deposition method, ATTM was first impregnated in the Al 2 O 3 support, and the as-synthesized wet sample was added to formic acid solution subsequently. The formic acid reacted with ATTM based on the following equation normalM normalo normalS 4 2 − + 2 normalH + = normalM normalo normalS 3 + normalH 2 normalS …”

One‐pot Synthesis of Bulk NiMoS Catalysts: Influence of pH and Addition of Pluronic®P123. Hydrodesulfurization of Model Sulfur Molecules Representative of FCC Gasoline

“…A metathesis‐like procedure based upon the precipitation of ammonium thiomolybdate with a nickel salt (e. g. (NH 4 ) 2 MoS 4 +Ni(NO 3 ) 2 ⋅ 6H 2 0→NiMoS 4 +2NH 4 NO 3 +6H 2 O) was described as a fast and easy way of preparation of Ni‐promoted MoS 2 catalysts [9–13] . In order to improve the specific surface areas of the compounds and eventually, get a better control of the characteristics of the active phase, different organic compounds such as surfactants, polymers or ionic liquids have been added to the reaction medium during the synthesis of MoS 2 [14–17] . For instance, addition of polymers such as poly(vinyl pyrrolidone) (PVP) or poly(ethylene glycol) (PEG) led to a decrease of the MoS 2 slab stacking and to an increase of its specific surface area [18–20] .…”

“…[9][10][11][12][13] In order to improve the specific surface areas of the compounds and eventually, get a better control of the characteristics of the active phase, different organic compounds such as surfactants, polymers or ionic liquids have been added to the reaction medium during the synthesis of MoS 2 . [14][15][16][17] For instance, addition of polymers such as poly(vinyl pyrrolidone) (PVP) or poly(ethylene glycol) (PEG) led to a decrease of the MoS 2 slab stacking and to an increase of its specific surface area. [18][19][20] The metathesis-like procedure described above has also been carried out in the presence of organic structuring agents.…”