Rabbit Anti-Human CGL Polyclonal antibody

Herein, N,S-codoped carbon materials embedded with ultrafine and well-distributed Co nanoparticles (1.14 wt % Co) were prepared through pyrolysis of the hybrids of SNW-1 and Co(Ac)(2) coated with glucose. It was observed by TEM and XRD that Co nanoparticles (NPs) were entrapped in doped carbon shells uniformly. The glucose coating presented a significant impact on the size distribution of Co NPs and doped modes of heteroatoms, especially the S species. The catalyst displayed outstanding activity for catalytic transfer hydrogenation (CTH) with formic acid under the base-free system. Encouragingly, diverse secondary amines were produced in excellent yields through the domino reaction of hydrogenation and reductive amination. Remarkably, the catalyst with ultrafine Co NPs showed good durability under harsh reaction conditions and displayed no significant loss in both activity and selectivity in 5 runs. This was attributed to the protection of constructed N,S dual-doped carbon shells. Hence, we offer an alternative strategy for the construction of dual-doped carbon materials trapped with ultrafine transition metal, which can be further applied in various catalytic processes.

Nano-fibrillated cellulose (NFC), an abundant natural biomacro-molecule, has received much attention in the field of catalyst preparation due to its unique properties. Herein, NFC is used as a versatile carrier of ruthenium and copper nanoparticles to enhance their performance in the catalytic transfer hydrogenation (CTH) of 5-hydroxymethylfurfural (HMF) into 2,5-bis (hydroxymethyl)furan (BHMF). The obtained RuCu@NFC was first characterized by SEM-EDX, TEM, FT-IR, XRD, TGA, and XPS techniques. The results showed that ruthenium and copper nanoparticles were well-distributed on the surface of NFC, and NFC had a good thermal stability under the temperature of 210 degrees C. The CTH of HMF into BHMF study showed that a 97.0% of HMF conversion with a satisfactory BHMF selectivity up to 91.5% was obtained at 210 degrees C in 12 h over RuCu@NFC using isopropanol as the H-donor. And RuCu@NFC was a robust catalyst that could be continuously used at least third times without significant loss in its catalytic activity.