Rh nanoparticles grafted on mesoporous silica support as a high-efficiency catalyst for Anthracene hydrogenation

Extracellular Synthesis of Iron Oxide Nanoparticles Using an Extract of Bacillus circulans: Characterization and In Vitro Antioxidant Activity

“…Te separation of a catalyst from the liquid phase can be performed using magnetic IONPs and applying an external magnetic feld by small magnets [3]. Te magnetic properties of IONPs are benefcial in immobilizing diamagnetic materials such as metal nanoparticles, organocatalysts, and enzymes acting as catalyst support [4]. Moreover, magnetic IONPs are used as contrast agents in MRI and hypothermia treatment [5].…”

Selective Hydrogenation of Anthracene to Symmetrical Octahydroanthracene over Al2O3-Supported Pt and Rh Catalysts Prepared by Strong Electrostatic Adsorption

“…14,15 Compared with that of the traditional metal sulfide catalysts, the catalytic activity of the noble metal catalyst is very high at mild conditions for the hydrogenation of PAHs not containing sulfur compounds. 16,17 Generally, noble metal catalysts are relatively expensive, which limits their application greatly. It is particularly important to the fine controllable synthesis of evenly dispersed and stable noble metal catalysts for the selective hydrogenation of PAHs, which provides an effective way for the efficient utilization of coal tar to prepare fine chemicals.…”

“…In the past decades, metal sulfide catalysts have been widely used in the hydrogenation of PAHs, especially for anthracene. However, the reaction conditions are usually high temperature and high pressure, and the reaction is easily limited by thermodynamic equilibrium, which greatly limits the ability of anthracene hydrogenation. − In addition, the general catalyst mainly involves the hydrofining of heavy oil fractions to obtain light oil, and its main function is to saturate the PAHs and reduce the aromatic content of the oil, which does not involve the selective hydrogenation to the target product sym -OHA. , Compared with that of the traditional metal sulfide catalysts, the catalytic activity of the noble metal catalyst is very high at mild conditions for the hydrogenation of PAHs not containing sulfur compounds. , Generally, noble metal catalysts are relatively expensive, which limits their application greatly. It is particularly important to the fine controllable synthesis of evenly dispersed and stable noble metal catalysts for the selective hydrogenation of PAHs, which provides an effective way for the efficient utilization of coal tar to prepare fine chemicals.…”