Dispersed Ni-Mo sulfide catalysts from water-soluble precursors for HDS of BT and DBT via in situ produced H2 under Water gas shift conditions

Recent advances in reducible metal oxide catalysts for C1 reactions

“…Reducible metal sulfides and phosphides (MS x , MP x ), a subgroup of the broader reducible material family, have been widely exploited for their unique catalytic properties in WGSR. 32,33 According to the literature, MS x would generate sulfur vacancies, similar to oxygen vacancies generated in reducible oxides, which can then interact with reacting species and facilitate intermediate and product generation, besides preventing side reactions and sintering. 34 Besides WGSR synthesis, MoP can be applied for CO hydrogenation for alcohols, methane, and other hydrocarbons production under room temperature and atmospheric pressure.…”

“…32,33 According to the literature, MS x would generate sulfur vacancies, similar to oxygen vacancies generated in reducible oxides, which can then interact with reacting species and facilitate intermediate and product generation, besides preventing side reactions and sintering. 34 Besides WGSR synthesis, MoP can be applied for CO hydrogenation for alcohols, methane, and other hydrocarbons production under room temperature and atmospheric pressure. 35 CO oxidation is an important, widely applied reaction in practice for controlling CO emissions by converting the CO to CO 2 .…”

Biphenyl Hydrogenation with Syngas for Hydrogen Purification and Transportation: Performance of Dispersed Catalytic Systems Based on Transition Metal Sulfides

“…Such systems are resistant to СО, which allows the hydrogenation to be performed in the СО-water system using hydrogen formed in situ by the reaction of CO with H 2 O. Both supported catalysts [28] and dispersions of nanosized sulfides of the corresponding metals [29,30] can be used in the process. The advantages of the unsupported dispersed catalysts are high specific surface area, high content of the active components, and resistance to catalytic poisons.…”

“…The advantages of the unsupported dispersed catalysts are high specific surface area, high content of the active components, and resistance to catalytic poisons. In addition, the unsupported catalytic systems can be prepared in situ by high-temperature decomposition of oil-soluble metal salts in the presence of a sulfidizing agent precursor (elemental sulfur) and remain stable in the presence of large amounts of water [29][30][31][32].…”

Bifunctionality of a MoS2-Amorphous Silica–Alumina-Dispersed Catalyst for Slurry-Phase Hydroconversion: Effect of Acid and Hydrogenating Site Ratios

“…Slurry-phase hydrocracking catalysts have been developed by a combination of ultradispersed MoS 2 with an acidic component (an amorphous silica–alumina, among others) in the range of 0.1–10 wt %. , Usually, the MoS 2 phase is obtained in situ during the catalytic reaction due to the advantages in the structure and morphology of unsupported transition metal sulfides compared to conventional supported MoS 2 catalysts. − We have reported on the improved performance of ultradispersed bifunctional hydrocracking catalysts obtained by the in situ formation of MoS 2 in the presence of amorphous silica–alumina . The positive effect of combining MoS 2 with a low acidity component (i.e., SiO 2 –ZrO 2 mixed oxides) was recently confirmed by Ma et al …”