Synthesis, characterization and catalytic properties of NiMoP/MCM41-γAl2O3 catalysts for DBT hydrodesulfurization

Cobalt Phosphide Hollow Polyhedron as Efficient Bifunctional Electrocatalysts for the Evolution Reaction of Hydrogen and Oxygen

“…21 Among them, transition-metal phosphides have been widely used as industrial catalysts for hydrodesulfurization and hydrodenitrification involving the adsorption and desorption of H 2 . 22,23 Accordingly, it can be inferred that phosphides have high affinities for H 2 and they could be suitable for HER electrocatalysis. In the last years, great effort has been devoted to developing efficient nanostructured transition-metal phosphides for HER, 24−26 among which cobalt (Co)-based phosphides have emerged much with different morphologies such as nanowires, 27 nanorods, 28 nanosheets, 29 and nanoparticles 30 as well as ternary phosphides.…”

Synthesis of mesoporous MCM-41 supported reduced graphene oxide-Fe catalyst for heterogeneous Fenton degradation of phenol

“…3(a), the characteristic diffraction peak (d 100 ) indicated the symmetry of the materials and that the Fe/MCM-41 and rGO-Fe/MCM-41 catalysts exposes a typical MCM-41 mesoporous structure. 22 Compared with MCM-41, the peak intensity at d 100 obviously decreased with the addition of rGO, suggesting that there is less ordered structure formed in rGO/MCM-41 catalyst. 23 And the addition of Fe can also decrease the ordered structure, which can be inferred by the comparison of d 100 peak intensity between MCM-41 and Fe/ MCM-41.…”

Efficient depolymerization of lignins to alkylphenols using phosphided NiMo catalysts

“…Moreover, new peaks appear at 2Ɵ values 14, 31, 33, 38, 51, and 53°, corresponding to molybdenum and nickel sulfides. [41][42][43][44] This implies that at least part of the phosphorus in the catalyst formulation is replaced by sulfur. These findings suggest that the exchange of phosphorus and sulfur occurs in the catalyst formulation during hydrotreatment.…”