On the hydrothermal-enhanced synthesis of highly selective Mo2C catalysts to fully deoxygenated products in the guaiacol HDO reaction

Synthesis of highly active carbon-encapsulated Ni2P catalysts by one-step pyrolysis–phosphidation for hydrodeoxygenation of phenolic compounds

“…Catalytic hydrodeoxygenation (HDO) has been regarded as the most potential and efficient technology for the removal of oxygen. 8,9 Commonly used HDO catalysts include precious metals, 10,11 metal sulfides, 12 metal carbides 13–15 and transition metal phosphides. 16–20 Among these catalysts, transition metal phosphides, especially nickel phosphide catalysts, have been proved to be highly active in HDO of various O-containing compounds because of their outstanding hydrogenation activity, weak acidity, and low price.…”

Molybdenum Carbide for Catalytic De/hydrogenation Process: Synthesis, Modulation and Applications

“…For example, carbon nanofibers (CNF) carriers prepared by hydrothermal impregnation are able to enhance the adsorption of molybdates in the liquid phase due to the presence of a large number of ester groups. While further optimization of the carbon carriers by HCl treatment can enhance the degree of freedom oxygen‐containing groups on their surface, all of which also affect the Mo/C ratio of molybdenum carbide [122] . In addition, cubic MoC also can be disseminated over TiO 2 and used for the succinic acid hydrogenation, Abou Hamdan et al.…”

“…Recent years, extensive research of the carrier engineering strategy for molybdenum carbide catalyst has been reported. Among these strategies, carbon-supported molybdenum carbide is widely adopted for its rich porous structure, easy electron conductivity, and ease of modification, including carbon nanofibers, [122,123] activated carbon, [48,124,125] carbon nanotubes [49,126,127] and ordered mesoporous carbon. [128][129][130] Beyond that, metal oxide-based compounds also can be employed as catalyst carriers.…”

“…While further optimization of the carbon carriers by HCl treatment can enhance the degree of freedom oxygen-containing groups on their surface, all of which also affect the Mo/C ratio of molybdenum carbide. [122] In addition, cubic MoC also can be disseminated over TiO 2 and used for the succinic acid hydrogenation, Abou Hamdan et al found that the selectivity of the product would be different from that of noble metal catalysts, with more butane products. This is thought to be a change in the reaction path due to the synergistic effect of MoC, which has hydrodeoxygenation activity on the C=O bond, and the acidic sites on TiO 2 .…”

Effect of carburising agent on the preparation of molybdenum carbides by plasma and their catalytic HDO of o-cresol

“…Molybdenum carbide is interstitial compounds formed by the insertion of carbon atoms into the molybdenum metal lattice, showing unique oxyphilic property, which is used as an effective HDO catalyst [11]. Generally, in the temperature-programmed carburization method (one of the most common method of the preparation of molybdenum carbide), the hydrocarbons gases (CH 4 , C 2 H 4 , C 2 H 6 , C 3 H 8 and C 4 H 10 ) are chosen as carbon sourse, while H 2 is chosen as reduction gas [12,13].…”