A5068227285- Catalysis for Biomass Conversion
- Catalytic Cross-Coupling Reactions
- Catalysis and Hydrodesulfurization Studies
- Thermochemical Biomass Conversion Processes
- Mesoporous Materials and Catalysis
- Supercapacitor Materials and Fabrication
- Lignin and Wood Chemistry
- Nanomaterials for catalytic reactions
- Covalent Organic Framework Applications
- Catalytic Processes in Materials Science
- Coal Combustion and Slurry Processing
- Catalysts for Methane Reforming
- Organometallic Complex Synthesis and Catalysis
- Polyoxometalates: Synthesis and Applications
- Nanocluster Synthesis and Applications
Tver State Technical University
2016-2020
The synthesis of catalytically active bimetallic Au–Pd nanoparticles stabilized in hyper-cross-linked polystyrene (HPS) for Suzuki cross-coupling 4-bromoanisole (4-BrAn) and phenylboronic acid is presented. core–shell structure with a thin (less than 1 nm) Pd shell Au core was proven by X-ray diffraction high-angle annular dark-field scanning transmission electron microscopy combined energy-dispersive spectroscopy. More 2-fold increase 4-BrAn conversion found comparison monometallic Pd/HPS....
This paper describes synthesis of Pd-containing catalysts Suzuki cross-coupling based on amino-functionalized hyper-cross-linked polystyrene at variation Pd precursor nature (PdCl2, PdCl2(CH3CN)2, or PdCl2(PhCN)2). The investigation the influence palladium oxidation state (Pd(II) Pd(0)) and form (Pdn clusters nanoparticles) rate 4-bromoanisole phenylboronic acid is discussed. Developed are shown to allow achieving conversion higher than 98% under mild reaction conditions. Independently...
This paper describes the synthesis of Pd-containing catalysts based on nonfunctionalized hypercrosslinked polystyrene via impregnation with Pd acetate. Developed nanoparticulate catalyst allowed achieving conversion aryl halide up to 90% in Suzuki cross-coupling reaction under mild conditions and at absence phase-transfer agents. During selective hydrogenation triple C-C bond 2-methyl-3-butyn-2-ol, 96% selectivity respect corresponding olefinic alcohol was found 95% conversion. The...
The article presents the results of process hydrogenolysis lignin obtained from softwood sawdust using 5% Pt/MN270 and 3% catalysts. Depending on desirable products 2-propanol was chosen as solvent showing highest substrate conversion product yield. Pt polymer-based catalyst provides high compared to Pd This can be due higher surface area active metal concentration surface. Also, it is notable, that Pt-containing in lowest formation oxygen-containing products. (90%) selectivity towards...
Abstract In this paper synthesized palladium (Pd)-containing catalysts were used in the hydrogenolysis of lignin presence a hydrogen donor solvent, i-propanol, to obtain liquid fuel components. A study influence catalyst support nature, preparation method and supercritical solvent nature on depolymerization was completed. It found that use Pd-containing results formation aromatic compounds (mainly benzene toluene) for both solvents (i-propanol CO 2 ). The maximum conversion (50 %) achieved...
The study presents the results of cellulose hydrolytic hydrogenation process in subcritical water presence Ru-containing catalysts based on hypercrosslinked polystyrene (HPS) MN-270 and its functionalized analogues: NH2-HPS (MN-100) SO3H-HPS (MN-500). It was shown that replacement traditional support (carbon) by HPS increases yield main conversion products – polyols important intermediates for chemical industry. were characterized using transmission electron microscopy (TEM), high resolution...