A5072925565- Graphene and Nanomaterials Applications
- Graphene research and applications
- Hybrid Renewable Energy Systems
- Advanced Photocatalysis Techniques
- Nanocluster Synthesis and Applications
- Advanced Battery Technologies Research
- Nanomaterials for catalytic reactions
- Microgrid Control and Optimization
- Nanocomposite Films for Food Packaging
- Electrocatalysts for Energy Conversion
- Membrane Separation and Gas Transport
- Advanced DC-DC Converters
- Metal-Organic Frameworks: Synthesis and Applications
- Nanoparticles: synthesis and applications
- Carbon Dioxide Capture Technologies
- Energy Harvesting in Wireless Networks
- Advanced battery technologies research
- Hydrogen Storage and Materials
- Carbon and Quantum Dots Applications
- Supercapacitor Materials and Fabrication
- Electrospun Nanofibers in Biomedical Applications
- Catalytic Processes in Materials Science
- CO2 Reduction Techniques and Catalysts
- Catalysis and Hydrodesulfurization Studies
- Crystallization and Solubility Studies
Euro-Mediterranean University of Fes
2019-2025
Instituto de Tecnología Química
2019-2022
Consejo Superior de Investigaciones Científicas
2019-2022
Universitat Politècnica de València
2019-2022
Abdelmalek Essaâdi University
2018-2020
Euromedic
2018
École Nationale d'Agriculture de Meknès
2018
Université du Québec à Trois-Rivières
2001-2007
Graphene oxide (GO) has recently captured tremendous attention, but only few functionalized graphene derivatives were used as fillers, and insightful studies dealing with the thermal, mechanical, biological effects of surface functionalization are currently missing in literature. Herein, reduced (rGO), phosphorylated (PGO), trimethylsilylated (SiMe3GO) prepared by post-modification GO. The electrostatic interactions these fillers chitosan afforded colloidal solutions that provide, after...
Synthetic materials commonly used in the packaging industry generate a considerable amount of waste each year. Chitosan is promising feedstock for production functional biomaterials. From biological point view, chitosan very attractive food packaging. The purposes this study were to evaluate antibacterial activity set chitosan-metal oxide films and different chitosan-modified graphene (oxide) against two foodborne pathogens: Campylobacter jejuni ATCC 33560 Listeria monocytogenes 19115....
Abstract This study aims at elucidating the role of polysaccharide skeleton (alginate versus chitosan) during growth and shaping HKUST‐1 as porous beads. Although two biopolymers afford an open hydrogel network, freeze‐drying step was crucial with water medium being inappropriate to preserve crystalline framework HKUST‐1. Alternatively, drying in ethanol circumvented this drawback by keeping intact structure However, a contrasting behavior observed resulting polysaccharide@HKUST‐1 beads,...
Pyrolysis of filmogenic natural polymers gives rise to the formation films few-layers defective, undoped, and doped graphenes with low electrical conductivity (3000 5000 Ω/sq). For sake valorization biomass wastes, it would be interest decrease density structural defects in order increase resulting graphene samples. In present study, analytical spectroscopic evidence is provided showing that by performing pyrolysis at optimal temperature (1100 °C), under a percentage H2, significant related...
Adsorption of Pd(NH3)42+ in preformed chitosan-graphene oxide (CS-GO) beads and their subsequent reduction with NaBH4 afford well-dispersed, high dispersion (~21%) uniformly sized Pd nanoparticles (~1.7 nm). The resulting Pd/CS-GO exhibits interesting catalytic activity for hydrogen generation by ammonium formate decomposition. optimal GO proportion 7 wt% allows reaching, at 60 °C, a turnover frequency above 2200 h-1-being outstanding among the highest values reported this process to date....
Phosphorylation imparts graphene oxide with great thermal stability, good chelating ability and enhanced interfacial properties.
Abstract In the context of diminishing atmospheric CO 2 emissions, there is an urgent need to develop processes that can be carried out at a scale commensurate with appropriate volumes. One possible reaction transformation methane (Sabatier reaction). Due its chemical stability, catalytic hydrogenation temperatures 450 °C or higher and pressures above 5 bars, thus, requiring significant energy input. alternative possibility conventional thermal catalysis use solar light as primary energy,...
A stand-alone renewable wind-photovoltaic energy system can be used to meet the requirements of off-grid remote area applications. Such a has been developed and successfully tested at Hydrogen Research Institute (HRI). In HRFs excess electrical with respect load demand, is transformed stored as hydrogen gas via an electrolyzer. The represents long-term ecological transportable form energy. (RE) components have substantially different voltage-current characteristics their operation must well...
Electrolytic hydrogen offers a promising alternative for long-term energy storage of renewable (RE). A stand-alone RE system based on in the form has been developed at Hydrogen Research Institute and successfully tested automatic operation with an in-house designed control power conditioning devices. In this excess respect to load demand is sent electrolyzer produce which, when properly stored, available fuel cell electricity there insufficient wind solar requirement. The components have...
Pyrolysis of ammonium alginate films containing Ru(NH3)6Cl3 leads to the formation Ru nanoparticles (NPs) supported on defective graphene films. The procedure allows controlling preferential facet orientation small NPs (5–20 nm), either 002 when pyrolysis is carried out under Ar atmosphere or and 101 planes for in presence H2. a metal difficult prepare compared noble metals due its higher reactivity smaller particle size. Theoretical calculations substantiated inhibition Ru(0 0 2) growth by...
A 5 kW DC-DC boost converter, adapted to integrated renewable energy applications, is placed at the point for adequately supplying a DC bus, regenerated from hydrogen fuel cell. The converter based on technique of multiphase control chopping. This permits augmentation output and reducing rate harmonics. authors present new approach recurrent equations phase currents. control, analysis modeling such system are discussed. study takes account frequency behaviour distortions. experimental...
Phosphorylated graphene sheets covalently bind, grow and stabilize biphasic anatase–rutile clusters through strong P–O–Ti bridges. The resulting nanocomposites stands as efficient visible-light photocatalysts for the degradation of dyes from water.
Metal phosphides have recently emerged as promising electrocatalysts for hydrogen evolution reaction (HER). Herein, we report the synthesis of ruthenium diphosphide embedded on a dual-doped graphitic carbon by pyrolyzing chitosan beads impregnated with chloride and phosphorus pentoxide. The as-synthesized RuP2@N-P-C displays good electrocatalytic activity in acidic, neutral alkaline media. We show that HER electrocatalyst can be tuned varying concentration Li+ cations. Co-diffusion effects...