A5075888703- Catalytic Processes in Materials Science
- Zeolite Catalysis and Synthesis
- Catalysis and Hydrodesulfurization Studies
- Chemical Synthesis and Characterization
- Mesoporous Materials and Catalysis
- Catalysts for Methane Reforming
- Nanomaterials for catalytic reactions
- Catalysis and Oxidation Reactions
- Asymmetric Hydrogenation and Catalysis
- Carbon dioxide utilization in catalysis
- Advanced Chemical Physics Studies
- Polyoxometalates: Synthesis and Applications
- Microbial Applications in Construction Materials
- Geotechnical Engineering and Soil Stabilization
- nanoparticles nucleation surface interactions
- Grouting, Rheology, and Soil Mechanics
- Catalysis for Biomass Conversion
Cardiff University
2017-2022
Chinese Academy of Sciences
2020
Research Complex at Harwell
2015-2017
University College London
2015-2017
Rutherford Appleton Laboratory
2015-2017
The conversion of biomass to useful chemical products requires precise catalytic properties achieve the required activity, selectivity, and durability. Here we show, through optimized colloidal synthesis, tandem control Pd size site availability for directed hydrogenation bioderived intermediate furfural. Adjusting temperature reduction dictates nanoparticles; in some instances ultrasmall clusters <20 atoms are achieved. However, changing solvent system affects PVA–Pd interaction relative...
Tetrapropylammonium hydroxide (TPAOH) was introduced in the vapor phase to perform vapor-phase transport (VPT) modification of structured ZSM-5 supported on SiC foam (ZSM-5/SiC foam) catalyst. An optimum precursor concentration 0.5 M TPAOH could effectively convert amorphous aluminosilicate binder zeolitic with improved intracrystal mesopores, nanosized crystals (ca. 100 nm), high acidity sites (83 mmol g−1) as well a value relative (0.7). Combined intrinsic property macroscopic foams such...
The use of AuPd nanoparticles in catalysis is widespread, with the activity being attributed to their precise structural properties. We demonstrate restructuring under CO oxidation conditions using a combined XAFS/DRIFTS approach. fresh catalyst exhibits PdO islands at surface nanoparticles, which are reduced reaction conditions, process observed via both DRIFTS and Pd K-edge XAFS measurements. From EXAFS analysis alone were have Au rich core an outer region intimately mixed atoms. This...
A post-synthesis method was developed to reduce the extra-framework titanium in TS-1 zeolites which TPAOH used convert amorphous Ti zeolitic phases.
To hinder the deactivation and improve propylene selectivity in methanol-to-propylene (MTP) reaction, MFI coating with intrazeolitic aluminum (acidic) gradient supported on SiC foam support (G-MFI/SiC foam) was proposed. The solid polycrystalline silicon used synthesis of G-MFI/SiC catalyst provided a prolonged release silica nutrient liquid phase suppressed precipitation phenomena. resulting showed along surface normal direction foams ZSM-5 layer (about 20 μm) near followed by silicalite-1...
Mesoporous silica-supported Ni-Zr catalysts prepared via the modified impregnation method by applying different solvents and calcination atmospheres were employed for CO methanation in a slurry-bed reactor. The results show that glycerol-impregnated Ni-Zr/SiO2 catalyst exhibited higher specific surface area Ni species dispersion more intensive nickel–support interaction than water-impregnated one thus enhanced catalytic activity stability. Furthermore, carbon could be constructed on of from...
Highly active ruthenium nanoparticle catalysts for C–H activation of hydrocarbons.
Mesoporous nano Ni-Al2O3 catalysts were prepared by using Pluronic P123 (P123) and fatty alcohol polyoxyethylene ether (AEO-7) as structure directing agents (SDAs), applied for CO2 methanation in a continuously stirred tank reactor (CSTR). Compared with NiAl-A AEO-7 SDA NiAl-N without SDA, NiAl-P possesses ordered mesopores, high Ni dispersion, large metal surface area amounts of adsorbed CO2, which benefits conversion. Under the conditions 1.0 MPa, 300 °C H2/CO2 ratio 4, shows highest...