A5037119995- Catalysis for Biomass Conversion
- Biofuel production and bioconversion
- Catalysis and Hydrodesulfurization Studies
- Carbon dioxide utilization in catalysis
- Polyoxometalates: Synthesis and Applications
- Nanomaterials for catalytic reactions
- TiO2 Photocatalysis and Solar Cells
- Lignin and Wood Chemistry
- biodegradable polymer synthesis and properties
- Advanced Cellulose Research Studies
- Catalytic Processes in Materials Science
- Chemical Synthesis and Reactions
- Advanced Photocatalysis Techniques
- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- Dyeing and Modifying Textile Fibers
- Supercapacitor Materials and Fabrication
- Biosimilars and Bioanalytical Methods
- Lubricants and Their Additives
- Chemical Reaction Mechanisms
- Membrane Separation and Gas Transport
- Cultural Heritage Materials Analysis
- Copper-based nanomaterials and applications
- Food composition and properties
- Tuberculosis Research and Epidemiology
Hindu College of Pharmacy
2025
Boreskov Institute of Catalysis
2016-2023
Siberian Branch of the Russian Academy of Sciences
2021
Novosibirsk Tuberculosis Research Institute
2020
University of Stuttgart
1993
OxFA-processing of inedible cellulose is considered as a perspective way for the production biogenic formic acid (FA) which appeared to be promising source sustainable energy. In our work, one-pot hydrolysis-oxidation FA was studied in presence micellar acidic catalysts based on Mo–V–P heteropoly acids [Cn-MIM]y/H3+x-yPMo12-xVx (n = 6, 10 and 16; x 1, 2 4; y 2–6). The influence amount V, substitution H+ by [Cn-MIM] length alkyl group Cn cation revealed. optimization reaction conditions also...
Abstract In this study, a combination of catalytic and biotechnological processes was proposed for the first time application in cellulose biorefinery production 5‐hydroxymethylfurfural (5‐HMF) bioethanol. Hydrolytic dehydration mechanically activated microcrystalline over carbon‐based mesoporous Sibunt‐4 catalyst resulted moderate yields glucose 5‐HMF (21.1–25.1 6.6–9.4 %). extracted from resulting mixture with isobutanol subjected to ethanol fermentation. A number yeast strains were...
The present work demonstrates high potential of Parachlorella kessleri IC-11 microalga biomass for the production biogenic formic acid under hydrothermal conditions and an air atmosphere. Homogeneous heterogeneous catalytic approaches were applied compared. experiments carried out in presence soluble H5PMo10V2O40 solid [(C4H9)4N]3.5H0.5PMo11VO40 bifunctional catalysts. influence reaction temperature catalyst loading on formation was revealed. Experimental data demonstrated that microalgae...
Solid bifunctional catalysts based on cesium salts of V-containing heteropoly acids (CsHPA: Cs3.5H0.5PW11VO40, Cs4.5H0.5SiW11VO40, Cs3.5H0.5PMo11VO40) and Cs2.5H0.5PMo12O40 were used for studying one-pot hydrolysis-oxidation potato starch to formic acid at 413-443 K 2 MPa air mixture. It was shown that the optimum process temperature prevents from destruction is 423 K. The studies focused influence composition anions yield selectivity acid. Using W-V-P(Si) CsHPA results in product...
Bifunctional solid acidic quaternary ammonium salts of Keggin-type vanadium-containing heteropoly acids, such as R3.5H0.5PVMo11O40 (R: (C2H5)4N, (C4H9)4N, (C6H13)4N), and [(C4H9)4N]4.5H0.5SiW11VO40, are capable one-pot hydrolysis-oxidationconversion (OxFA-processing) starch to biogenic formic acid. The impact the reaction conditions catalyst type was revealed. highest acid yield 50% achieved over best [(C2H5)4N]3.5H0.5PVMo11O40 catalyst, which active stable in seven cycles. kinetic...
We explored the photoreforming of rice and corn starch with simultaneous hydrogen production over a Cd0.7Zn0.3S-based photocatalyst under visible light irradiation. The was characterized by UV–vis diffuse reflectance spectroscopy, X-ray diffraction, photoelectron spectroscopy. influence pretreatment conditions, such as hydrolysis temperature alkaline concentration, on reaction rate studied. maximum H2 evolution 730 μmol·h−1·g−1, AQE = 1.8% at 450 nm, in solution obtained after 5 M NaOH 70...
The catalysts with platinum-group metals on nanostructured carbons have been a very active field of research, but the studies were mainly limited to Pt and Pd. Here, Ru based nitrogen-doped carbon nanotubes (N-CNTs) prepared thoroughly characterized; loading was kept constant (3 wt.%), while degree N-doping varied (from 0 4.8 at.%) evaluate its influence state supported metal. Using N-CNTs afforded ultrafine particles (<2 nm) allowed portion be stabilized in an atomic state. presence single...
Niobium oxide supported on ZrO2 and mixed of NbOx-ZrO2 was prepared characterized. Mechanical treatment followed by the microwave heating procedure catalysts with more advanced textural parameters. The amount Lewis (LAS) Brønsted (BAS) acid sites rose increasing Nb content in catalysts. catalytic properties samples niobia-zirconia (NbZr samples, NbZr catalysts) were studied a cellulose hydrolysis–dehydration reaction at 453 K under an inert Ar atmosphere batch reactor. Glucose...
The one-pot hydrolysis-dehydration of activated microcrystalline cellulose was studied in pure hydrothermal water at 453 K over ZrO2 catalysts produced by thermodegradation, microwave treatment, mechanical activation, and sol–gel methods spent without any co-catalyst. prepared treatment more active compared to ones derived other methods. catalyst calcination temperature also impacted reactivity. conversion increased simultaneously with acidity SBET, which turn were set the preparation method...
The aim of the work is to investigate one-pot hydrolysis-oxidation different lignocellulose feedstocks: hemicelluloses xylan and arabinogalactan as well biomass (sulfate pulp, waste paper, silver grass aspen wood).The target product process formic acid.It a valuable which seems be very perspective reducing agent or hydrogen source.The experiments have been carried out in solutions bifunctional Mo-V-P heteropoly acid catalyst has composition Co 0.6 H 3.8 PMo 10 V 2 O 40 .The yield equal 40-43...
Catalytic systems based on tungsten carbide (WnC) containing mainly W2C were obtained by the method of self-propagating high-temperature synthesis from a mechanochemically activated mixture oxide, metallic magnesium, carbon black and CaCO3. The phase composition formed materials was shown to depend amount catalytic properties tested in hydrolysis-hydrogenation cellulose ethylene glycol (EG) 1,2-propylene (PG). It established that presence WnC main products reaction EG PG with ratio PG/EG –...
The catalytic properties of cesium salts heteropolyacids with the composition Cs 4-х H х SiW 12 O 40 (х = 3 and 3.5), 3-х HхPMo HхPW 2 2.5) were studied in hydrolysis cellulose to glucose at 180 °C an argon atmosphere. Glucose was shown be main product reaction. maximum yield reached 23% presence HSiW for 1 h Specific surface area supposed affect catalyst efficiency. It found that indicated reaction is heterogeneous homogeneous, which caused by leaching active component solution. obtained...