A5031758937- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Catalysis and Oxidation Reactions
- TiO2 Photocatalysis and Solar Cells
- Mesoporous Materials and Catalysis
- Zeolite Catalysis and Synthesis
- Layered Double Hydroxides Synthesis and Applications
- Catalysis and Hydrodesulfurization Studies
- Copper-based nanomaterials and applications
- Gas Sensing Nanomaterials and Sensors
- Magnesium Oxide Properties and Applications
- Polyoxometalates: Synthesis and Applications
- Nanomaterials for catalytic reactions
- Catalysts for Methane Reforming
- Glass properties and applications
- Thermal and Kinetic Analysis
- Aerogels and thermal insulation
- Advanced Nanomaterials in Catalysis
- Luminescence Properties of Advanced Materials
- Quantum Dots Synthesis And Properties
- Catalysis for Biomass Conversion
- Pigment Synthesis and Properties
- Electrocatalysts for Energy Conversion
- X-ray Diffraction in Crystallography
- Chemical Synthesis and Characterization
Universidad Autónoma Metropolitana
2015-2024
Instituto Politécnico Nacional
1997-2013
Instituto Colombiano del Petróleo y Energías de la Transición - Icpet
2010
Mexican Institute of Petroleum
1973-2010
Universidad de Guanajuato
1995-1997
Tulane University
1997
Centre National de la Recherche Scientifique
1996
Universidad Nacional Autónoma de México
1993-1994
Universidad de Xalapa
1991
École Normale Supérieure - PSL
1981
Nanocrystalline alumina was synthesized by using the sol−gel method with aluminum sec-butoxide as precursor. FTIR, TG, XRD, and crystalline structure refinement were used to analyze phase transformations their structures. When samples annealed at 200 °C, they had two nanocrystalline phases γ-boehmite γ*-boehmite, which same but different lattice parameters defect numbers in structure. After sample annealing above 400 γ*-boehmite transformed into γ-Al2O3 θ-Al2O3. The γ-alumina contained...
Iron-doped titania photocatalysts with different iron contents were prepared by using a sol−gel method in acidic media. The crystalline structures of the various phases calcined at temperatures ranging from 70 to 800 °C studied Rietveld technique combination XRD experiments. average crystallite size phases, lattice cell parameters, phase concentrations, and titanium cationic defects samples quantitatively determined. Both content calcination temperature strongly affected transformation...
Hydrotalcites, which are anionic clays, have been synthesized by the sol−gel technique from magnesium ethoxide, aluminum tri-sec-butoxide, and acetylacetonate. Initially a colloidal solution is obtained gels thermally stabilized. The local average structure studied comparing electron microscopy results with XRD patterns. One of main features these materials high specific area (around 150 m2/g), if compared natural hydrotalcites areas.