A5084523517- Supercapacitor Materials and Fabrication
- Electrospun Nanofibers in Biomedical Applications
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Electrochemical sensors and biosensors
- Bone Tissue Engineering Materials
- Characterization and Applications of Magnetic Nanoparticles
- Gold and Silver Nanoparticles Synthesis and Applications
- Polyoxometalates: Synthesis and Applications
- Transition Metal Oxide Nanomaterials
- Nanoparticle-Based Drug Delivery
- Nanomaterials for catalytic reactions
- Enzyme Catalysis and Immobilization
- Quantum Dots Synthesis And Properties
- Titanium Alloys Microstructure and Properties
- TiO2 Photocatalysis and Solar Cells
- Magnetic Properties and Synthesis of Ferrites
- Nanocluster Synthesis and Applications
- Advanced battery technologies research
- Intermetallics and Advanced Alloy Properties
- Advanced materials and composites
- Nanoparticles: synthesis and applications
- Cellular and Composite Structures
- Thermodynamic and Structural Properties of Metals and Alloys
- Iron oxide chemistry and applications
Universidad Autónoma de Nuevo León
2007-2021
Consejo Nacional de Ciencia y Tecnología
2015
In this contribution, a totally ecofriendly synthesis of silver nanoparticles from aqueous dissolution polysaccharides is reported. The was performed using dissolutions nitrate (AgNO 3 ) and carboxymethyl-cellulose (CMC) as both reducing stabilization agent different AgNO : CMC weight ratios. Resultant yellowish to reddish dispersions were characterized by means transmission electron microscopy their related techniques, such bright field Z-contrast imaging diffraction, well...
The preparation of MnPO4·H2O and its study as electrode material for electrochemical capacitors is reported. charge storage mechanism pseudocapacitive involves insertion hydroxyl ions into the 1D tunnels crystalline structure MnPO4·H2O, that together with diverse functional groups this manganese phosphate allows successive surface redox reactions. active thickness around 4.5 nm one electron process. coupled stored process leads to a high areal capacitance 1350 μFcm−2. specific 210 Fg−1 in 3M...
In this contribution, we report on the microscopic and spectroscopic characterization of lead chalcogenide nanoparticles. PbSe PbTe nanoparticles were synthesized by chemical methods, using different molar ratios Pb, Se, Te precursors varying reaction time. These characterized means transmission electron microscopy their related techniques: diffraction, energy dispersive X-ray spectroscopy (EDXS), loss (EELS), aberration corrected scanning (AC-STEM), to obtain information morphology, crystal...
ABSTRACT The horseradish peroxidase enzyme (type VI 250 U mg −1 ) was encapsulated in polymeric nanofibers using the electrospinning technique and successfully immobilized by exposure to glutaraldehyde (GA) vapor order create covalent bonds between polyivinilalcohol (PVA) chains molecules. morphology of analyzed scanning electron microscopy (SEM) showing a diameter range 100–200 nm. presence electrospun confirmed infrared spectroscopy (FTIR). optimum crosslinking time 1 h GA vapor. maximum...
In this study, we performed a systematic evaluation of the synthesis parameters multiresponsive core-shell nanoplatform (Fe₃O₄ nanoparticles coated by poly(N-isopropylacrylamide). These nanocomposites allow possibility controlling specific properties, such as particle size and morphology. The polymer coating was in-situ free-radical polymerization N-isopropylacrylamide on Fe₃O₄ to obtain nanocomposite with structure. We monitored morphology scanning transmission electron microscopy....
Abstract The enzyme pepsin (E.C. 3.4.23.1, strength ≥400 μ/mg) was immobilized in poly(vinyl alcohol) (PVA) nanofibers for the first time by electrospinning technique. morphology of analyzed SEM showed a diameter nanometric range 70–165 nm. presence nanofibrous matrix proved infrared spectroscopy (FTIR). immobilization process carried out through crosslinking exposure to glutaraldehyde (GA) vapor. thermal analysis differential scanning calorimetry (DSC) effect and concentration on glass...
VOPO4·2H2O was synthesized and investigated as an electrode material for electrochemical supercapacitors. The characterizations were performed in three different electrolytes (3M LiNO3, 3M KOH LiOH). Ion intercalation is shown by extracting the charge of double layer, pseudocapacitive faradaic processes from cyclic voltammograms. This takes place across entire applied potential window even at scan rates high 100 mV.s−1. However, amount related to each mechanism depends on nature electrolyte....
Recent publications have reported important advances in the development of new smart nano-platforms due to their response when exposed external physical and chemical changes, leading a dramatic modification properties.These features allow potential use these materials field therapeutic biomedicine [1,2].In this research, systematic evaluation synthesis parameters multi-responsive core-shell nanoplatform (Fe3O4 nanoparticles coated by poly(Nisopropylacrylamide) matrix) was performed.These...
In the present work two layered vanadium phosphates were prepared, VOPO4 • CTAB and K0.5VOPO4 1.5H2O as electrode materials for electrochemical capacitors. These contain different molecular species in their interlayer space leading to an behavior that drastically differs from crystalline phase 2H2O, with water molecules space. case of CTAB, it was found block pathway electrolyte ions into structure avoiding intercalation/deintercalation process. K0.5VOPO4• 1.5H2O, K+ hinder process around 73...
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