Yarmohammadi, Nasrin published the artcileIn situ synthesis of bimetallic iron oxide/Cu nanoparticles over pectin hydrogel obtained from biomass resource as reusable green catalyst for oxidation and C-S cross-coupling reactions, Category: catalysis-chemistry, the publication is Chemical Papers (2022), 76(7), 4289-4307, database is CAplus.
The incorporation of nanoparticles into the hydrogel matrix empowers the development of innovative catalytic materials with improved properties. Pectin is a heteropolysaccharide containing a large number of hydroxyl, carbonyl, and carboxylic acid functional groups that were selected as suitable support. Then, in the presence of calcium chloride pectin hydrogel was prepared by phys. crosslinking. After that, the iron and copper nanoparticles were loaded on their surface and used as an efficient and biodegradable catalyst. The synthesized bimetallic nanocatalyst was characterized via FESEM, VSM, TGA, ICP, XRD, EDX, BET, TEM, and FT-IR techniques. The morphol. and structure studies revealed that pectin matrix hydrogel can efficiently load nanoparticles and also prevent the agglomeration of nanoparticles. Catalytic performances of ¦Ã-Fe2O3/Cu@HPECGs nanocomposite were investigated in the oxidative coupling of thiols to disulfides in the presence of hydrogen peroxide (H2O2) as a green oxidant. In addition, ¦Ã-Fe2O3/Cu@HPECGs nanocatalyst can synthesize sym. sulfides in a one-pot method with thiourea as the sulfur source under mild conditions. In comparison to pure iron nanoparticles, the addition of Cu nanoparticles increased the catalytic efficiency. These procedures provide applicable strategies with yields as high as 90% and high selectivity. This bimetallic catalyst can be recycled nine times without changing its structure, activity, and selectivity.
Chemical Papers published new progress about 119-80-2. 119-80-2 belongs to catalysis-chemistry, auxiliary class sulfides,Carboxylic acid,Benzene, name is 2,2′-Dithiodibenzoic acid, and the molecular formula is C6H12F3NO5S, Category: catalysis-chemistry.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia