A5015901942- Polyoxometalates: Synthesis and Applications
- Chemical Synthesis and Reactions
- Catalysis and Hydrodesulfurization Studies
- Catalysis for Biomass Conversion
- Metal-Organic Frameworks: Synthesis and Applications
- Mesoporous Materials and Catalysis
- Carbon dioxide utilization in catalysis
- Catalysis and Oxidation Reactions
- Catalytic Processes in Materials Science
- Chemistry and Chemical Engineering
- Oxidative Organic Chemistry Reactions
- Asymmetric Hydrogenation and Catalysis
- Catalysts for Methane Reforming
- Zeolite Catalysis and Synthesis
- Nanomaterials for catalytic reactions
- Sulfur-Based Synthesis Techniques
- biodegradable polymer synthesis and properties
- Synthetic Organic Chemistry Methods
- Ionic liquids properties and applications
- Chemical Synthesis and Characterization
- Layered Double Hydroxides Synthesis and Applications
- Magnetic Properties and Synthesis of Ferrites
- Covalent Organic Framework Applications
- Synthesis of Indole Derivatives
- Vanadium and Halogenation Chemistry
University of Liverpool
2016-2025
Dehydration of methanol to dimethyl ether (DME) was studied at a gas/solid interface over wide range bulk and supported Brønsted acid catalysts based on tungsten Keggin heteropoly acids (HPA) compared with the reaction HZSM-5 zeolites (Si/Al = 10–120). Turnover rates for these were measured under zero-order conditions. The HPA demonstrated have much higher catalytic activities than zeolites. A good correlation between turnover catalyst strengths, represented by initial enthalpies ammonia...
The reverse water gas shift (RWGS) was studied in the presence of Keggin polyoxometalates (POMs) such as heteropolyacids H3PMo12O40 and H3PW12O40 their Co(II) Ni(II) salts. supported on SiO2, TiO2 γ-Al2O3 produced CO with 100% selectivity at 29–33% CO2 conversion 600 oC a CO2:H2 molar ratio 1:1. These catalysts were more active than MoO3/SiO2 revealing phosphorus enhancement effect activity molybdenum species. This is attributed to influence phosphate dispersion Mo oxide phase. STEM shows...
Acidic heteropoly salt Cs2.5H0.5PW12O40 doped with Pt nanoparticles is a highly active and selective catalyst for one-step hydrogenation of methyl isobutyl diisobutyl ketones to the corresponding alkanes in gas phase at 100 °C 97–99% yield via metal-acid bifunctional catalysis.
The liquid-phase isomerization of limonene oxide was studied in the presence heteropoly acid catalysts aprotic solvents homogeneous and heterogeneous systems. Among were bulk silica-supported tungstophosphoric H3PW12O40 its acidic Cs salt Cs0.5H0.5PW12O40 (CsPW). reaction gave dihydrocarvone, a valuable fragrance intermediate, as main product with turnover numbers up to 8000. nature solvent had strong effect on rate selectivity. CsPW (0.1 mol%) found be highly efficient truly catalyst for...
Polyoxometalate-phosphazene salt aggregates comprising cyclophosphazene cations are highly efficient catalysts for environmentally benign biphasic oxidations with hydrogen peroxide. These self-assemble in situ simply by mixing commercial Keggin POMs and readily available phosphazenes.
Oxidative desulfurization and alkene epoxidation proceed in heptane–water biphasic system through facile phase transfer of POM by amine terminated oligomer.