Ultrasonic-assisted oxidation of cellulose to oxalic acid over gold nanoparticles supported on iron-oxide

Abstract

The use of unconventional activation techniques, such as low frequency ultrasound (US), in combination with heterogeneous catalysts offers a powerful synergistic approach to transform renewable resources to value added chemicals....

Coupled Co-Doped MoS2 and CoS2 as the Dual-Active Site Catalyst for Chemoselective Hydrogenation

“…A further increase in CoS 2 species and decrease in MoS 2 species reduce the conversion of 0.75CoMoS to 92.7%. Recent studies revealed that the interaction between different phase is only strong and extendable within three atomic layers from the interface. − Therefore the interaction between different phases is faded when excessive dosage of either CoS 2 and MoS 2 were used, which could explain the optimum dosage of CoS 2 and MoS 2 obtained. As a comparison, corresponding mechanical mixtures of MoS 2 -CoS 2 and 0.25CoMoS-CoS 2 were prepared using F-MoS 2 , 0.25CoMoS, and C-CoS 2 as raw materials (see details in the Experimental Section).…”

Controlled synthesis of Ru-single-atoms on ordered mesoporous phosphine polymers for microwave-assisted conversion of biomass-derived sugars to artificial sweeteners

“…All such routes bestow better selectivity to the desired products from a controlled mild reaction. 6,7 Hence, these routes could be a foundation for the economic benefits in converting hemicellulosic fractions (xylose and glucose) of biomass into xylitol ( pentacarbon) and sorbitol (hexacarbon) as low-calorie sweeteners. 8 These sugar molecules are harmless and in demand as additives in the food and pharmaceutical industries compared to saccharin and cyclamates.…”

Core–Shell In/Cu2O Nanowires Schottky Junction for Enhanced Photoelectrochemical CO2Reduction under Visible Light

“…Notably, when the thickness is increased to 20 nm, the CO 2 reduction performance decreases instead. It has been shown that in the core–shell structure, the interaction between the two phases is only within a few atomic layers at the interface of the two phases. , Hence, the introduction of excess In NPs on the surface hinders the active sites between the In and Cu 2 O interface, which may be responsible for the reduced CO selectivity.…”