A5084592301- Quantum Dots Synthesis And Properties
- Solar-Powered Water Purification Methods
- Thermal Radiation and Cooling Technologies
- Natural Fiber Reinforced Composites
- Carbon Nanotubes in Composites
- Phase Change Materials Research
- Gas Sensing Nanomaterials and Sensors
- Thermography and Photoacoustic Techniques
- Conducting polymers and applications
- Solar Thermal and Photovoltaic Systems
- Optical properties and cooling technologies in crystalline materials
- Advanced Thermoelectric Materials and Devices
- Perovskite Materials and Applications
- Photoacoustic and Ultrasonic Imaging
- Electrospun Nanofibers in Biomedical Applications
- Ga2O3 and related materials
- Composite Material Mechanics
- Thermal properties of materials
- Crystal Structures and Properties
- Transition Metal Oxide Nanomaterials
- ZnO doping and properties
- Textile materials and evaluations
- Advanced Photocatalysis Techniques
- Chalcogenide Semiconductor Thin Films
- Graphene research and applications
Center for Research and Advanced Studies of the National Polytechnic Institute
2019-2025
Instituto Politécnico Nacional
2020-2024
KU Leuven
2019
Abstract Efficient use of heating systems is necessary from an environmental and economic perspective. This work analyses the Joule effect thermal transport properties carbon nanofibers dispersed in ethylene–glycol aligned by applying a constant AC electric field. We tested several weight fraction concentrations 0.1 % to 1 wt nanofibers. The evolution temperature current as function time was analyzed. amount heat generated quantified using Joule's law equation, we estimated conductivity...
Electrical percolation in two-phase materials involves a very singular behavior, manifested as huge change the electrical conductivity, for given volume or mass fraction of phase with higher conductivity. In contrast, case heat transfer, composite systems, analogous percolative phenomena are far more elusive and have been rather difficult to observe various physical systems. this Perspective, we present critical analysis experimental results application theoretical models aimed study effects...
Hybrid lead halide perovskite solar cells (PSCs) stand out in terms of their high efficiency, yet the limited stability and process scalability pose challenges to commercialization. Fully printable carbon-based (C-PSCs), consisting a triple stack mesoporous titania, zirconia, carbon layers impregnated with material, have been introduced as an attractive architecture; however, they generally exhibit lower efficiency. This study proposes viable scalable approach increase efficiency C-PSCs by...
Solar thermal collectors represent a practical option to capture energy from the sun, providing low-cost domestic and industrial heating decreasing dependency on fossil fuels. Spinel-type metal oxides show interesting physicochemical properties so can be used as active materials for converting solar electrical, chemical, heat energy. We report synthesis characterization of nickel–cobalt mixed an phase in selective paints absorber coatings applied flat collector. The crystallized cubic...
In recent years, polymer engineering, at the molecular level, has proven to be an effective strategy modulate thermal conductivity. Polymers have great applicability in food packaging industry, which transparency, lightness, flexibility, and biodegradability are highly desirable characteristics. this work, a possible manner adjust conductivity cassava starch biopolymer films is presented. Our approach based on modifying structure through addition of borax, been previously used as...
Through the execution of scientific innovations, "smart materials" are shaping future technology by interacting and responding to changes in our environment. To make this a successful reality, proper component selection, synthesis procedures, functional active agents must converge practical resource-efficient procedures lay foundations for profitable sustainable industry. Here we show how reaction time, temperature, surface stabilizer concentration impact most promising properties...
In materials science, the knowledge of thermal properties thin films on thick substrates is crucial in determining role film physical entire system. Even though can be very important, determination its a challenging task due to fact that contribution heat transfer generally hard single out from influence substrate. Herein, simple analytical methodology, based photoacoustic technique, useful characterization substrates, presented. The approach illuminating one side substrate with modulated...
This work reports on a study of light transmission in electrically responsive materials consisting long aspect ratio carbon nanostructures fluid matrices.Composite fluids were prepared using multiwalled nanotubes or nanofibers two types matrices, ethylene glycol and distilled water.Measurements performed illuminating the sample with polarized light.Before, during after applying uniform constant electric field, evolution intensity transmitted was monitored.For glycol-based dispersions, it...
This work focused on studying the synthesis of zinc selenide (ZnSe) particles using a methodology based two-level factorial design (23). Subsequently, results obtained, synthesized ZnSe structures were chemically doped with nitrogen and then supported graphene oxide (GO). The compounds evaluated as photocatalysts for degradation lignin, complex molecule derived from paper production processes. was prepared through chemical route sodium selenite nitrate precursors, it processed in an...