A5000917380- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Catalysis and Oxidation Reactions
- Mineral Processing and Grinding
- Chemical Looping and Thermochemical Processes
- Carbon Dioxide Capture Technologies
- Advanced machining processes and optimization
- Carbon dioxide utilization in catalysis
- Granular flow and fluidized beds
- Metallurgy and Material Forming
- Adsorption and Cooling Systems
- Carbon and Quantum Dots Applications
- Membrane Separation and Gas Transport
- Mercury impact and mitigation studies
- Adsorption and biosorption for pollutant removal
- Electrocatalysts for Energy Conversion
- Thermal and Kinetic Analysis
- High-Velocity Impact and Material Behavior
- Iron and Steelmaking Processes
- Energetic Materials and Combustion
- Electronic and Structural Properties of Oxides
- Injection Molding Process and Properties
- Powder Metallurgy Techniques and Materials
Khalifa University of Science and Technology
2016-2024
CO2 adsorbents comprising various alkaline sorption active phases supported on mesoporous Al2O3 were prepared. The materials tested regarding their adsorption behavior in the mid-temperature range, i.e., around 300 °C, as well characterized via XRD, N2 physisorption, CO2-TPD and TEM. It was found that Na2O phase (originated following NaNO3 impregnation) led to highest capacity due presence of CO2-philic interfacial Al–O––Na+ sites, optimum load shown be 12 wt % (0.22 Na/Al molar ratio)....
Doped ceria-based metal oxides are widely used as supports and stand-alone catalysts in reactions where CO2 is involved. Thus, it important to understand how tailor their adsorption behavior. In this work, steering the activation behavior of Ce–La–Cu–O ternary oxide surfaces through combined effect chemical mechanical strain was thoroughly examined using both experimental ab initio modeling approaches. Doping with aliovalent cations (La3+ or La3+/Cu2+) post-synthetic ball milling were...
This work reports on the catalytic performance of 5 wt% Ni/SBA-15 catalysts promoted with different contents CeLa10Cu metal-oxide (X = 0%, 10%, 20%, 30%, 40%) towards dry reforming methane (DRM). The high surface area SBA-15 allows confinement Ni in its channels and improved dispersion. specific was found to be 182–307 m2/g range. Structural analysis (X-ray diffraction Raman) showed that ceria-related cubic fluorite phase is only observed at onset 20% content higher. Additionally, Raman...
In this work, a relatively new class of materials, rare earth (RE) based high entropy oxides (HEO) are discussed in terms the evolution oxygen vacant sites (Ov) content their structure as composition changes from binary to HEO using both experimental and computational tools; under focus is CeLaPrSmGdO due importance ceria-related (fluorite) materials catalysis. To unveil key features quinary structure, ceria-based CePrO CeLaO compositions well SiO2, latter representative nonreducible oxide,...
Nanostructured bimetallic reactive multilayers can be conveniently produced by ball milling of elemental powders. This research explores the non-equilibrium microscale conductive thermal transport in ball-milled particulate fractal structures during fabrication, arising from heat dissipation bulk plastic deformation and surface friction. Upon impactor collisions, temperature increments are determined at interface joints domain volumes using Green's functions, mirrored source images with...
This research introduces dynamic modeling and real-time control of fractal structure in particulate materials fabricated by the ball milling process, specifically addressing challenges unavailable non-destructive non-invasive imaging measurements enclosed rotating vials. A description internal temperature dynamics container is established along with a thermal regulator based on external feedback. The dimension introduced as structural measure, its via an analytical formulation through lumped...
Exsolved perovskite-based catalysts exhibiting high and stable CO 2 conversion rates.