Promotional effect of Co and Ni on MoO3 catalysts for hydrogenolysis of dibenzofuran to biphenyl under atmospheric hydrogen pressure

Highly Selective Hydrodeoxygenation of Dibenzofuran into Bicyclohexane over Hierarchical Pt/ZSM-5 Catalysts

“…Sulfide Ni­(Co)-Mo catalysts are generally applied in the HDO process of bio-oils. Unfortunately, these catalysts are gradually deactivated during the reaction because of the oxidation of the active phase, resulting in product contamination. , Therefore, it is indispensable to explore new and efficient HDO catalysts, such as noble metals, , metal nitrides, , metal carbides, , and transition metal phosphides. , Noble metals catalysts, including Pt, Ir, Ru, Pd, Pt–Pd, and Pd–Fe, have exhibited much better hydrogenation performance than other catalysts and hence are very promising for HDO of bio-oils. Zhang et al discovered that Pt/MgO had better catalytic activity than that of Ru/MgO and Pd/MgO in the HDO of DBF, whereas the selectivity to bicyclohexane (BCH) was very low owing to the weak acid of MgO.…”

“…Unfortunately, these catalysts are gradually deactivated during the reaction because of the oxidation of the active phase, resulting in product contamination. 12,13 Therefore, it is indispensable to explore new and efficient HDO catalysts, such as noble metals, 14,15 metal nitrides, 16,17 metal carbides, 18,19 and transition metal phosphides. 20,21 Noble metals catalysts, including Pt, Ir, Ru, Pd, Pt−Pd, and Pd−Fe, have exhibited much better hydrogenation performance than other catalysts and hence are very promising for HDO of bio-oils.…”

Critical Raw Material-Free Catalysts and Electrocatalysts: Complementary Strategies to Activate Economic, Robust, and Ecofriendly SrTiO3

“…TPR analysis is consistent with the deposition of 0.28 and 0.30 mol/mol, respectively, for Ni/ST9M1 and Ni/ST6M4. The signals are centered at 400 and 550 °C (Figure SI5) and correspond to the reduction of Ni­(II) poorly (400 °C) and strongly (550 °C) interacting with Ti and/or Mo. − A contribution due to Mo­(VI) reduction can be excluded comparing the experimental and nominal hydrogen consumption values and the low temperature (the reduction MoO 3 was observed to be promoted by Ni around 640–650 °C , ). The amount of Ni on the surface (XPS, Table ) is higher than the nominal one in Ni/ST9M1 and almost corresponding to the nominal one in Ni/ST6M4; the quantitative results suggest the absence of diffusion toward bulk, the peak positions correspond to Ni­(II).…”

Solvent Effect on the Hydroconversion of Lignin-Related Model Compounds over MoO3

“…Metal sulfides (e.g., MoS 2 , NiMoS, and CoMoS), noble metals (e.g., Ru, Pt, and Pd), and transition metals (e.g., Ni, Co, Fe, Mo, and Cu) show excellent activities for the CHC of some LRMCs. 8,9 The doping of Ni/Co/Fe could increase the catalyst acidity, and the synergic effect of some bimetals is more conducive to the CHC. 9,10 In addition, the growth of metal particles can be inhibited by adding certain ligands and surfactants during the particle preparation.…”

“…, Ru, Pt, and Pd), and transition metals ( e.g. , Ni, Co, Fe, Mo, and Cu) show excellent activities for the CHC of some LRMCs. , The doping of Ni/Co/Fe could increase the catalyst acidity, and the synergic effect of some bimetals is more conducive to the CHC. , In addition, the growth of metal particles can be inhibited by adding certain ligands and surfactants during the particle preparation . The product yield is also affected by the content of unsaturated sites and the dispersity of active ingredients, which can be regulated by modifying the carrier shape .…”