A5081622130- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Transition Metal Oxide Nanomaterials
- Advanced Photocatalysis Techniques
- MXene and MAX Phase Materials
- 2D Materials and Applications
- Graphene research and applications
- Advanced Chemical Sensor Technologies
- Copper-based nanomaterials and applications
- Catalytic Processes in Materials Science
- Molecular Junctions and Nanostructures
- Analytical Chemistry and Sensors
- Electrochemical sensors and biosensors
- Anodic Oxide Films and Nanostructures
- Conducting polymers and applications
- Perovskite Materials and Applications
- Nanowire Synthesis and Applications
- Rare-earth and actinide compounds
- Polymer Nanocomposite Synthesis and Irradiation
- Physics of Superconductivity and Magnetism
- Supercapacitor Materials and Fabrication
- Superconductivity in MgB2 and Alloys
- Magnetic properties of thin films
- Electric Power Systems and Control
- Advanced Data Processing Techniques
Le Quy Don Technical University
2018-2023
Hanoi University of Science and Technology
2017-2023
Van Lang University
2022
Sungkyunkwan University
2009
Hanoi University
1990-1992
In this work, we perform a first-principle study to investigate the atomic and electronic structures of ${\mathrm{C}}_{3}{\mathrm{N}}_{4}/{\mathrm{MoSi}}_{2}{\mathrm{N}}_{4}$ van der Waals heterostructure (vdWH) as well its tunable structure via interlayer coupling an external perpendicular electric field. The vdWH is structurally thermodynamically stable at room temperature. Our results demonstrate that exhibits semiconducting characteristic with direct band gap 1.86/2.66 eV given by...
A van der Waals (VDW) heterostructure offers an effective strategy to create designer physical properties in vertically stacked two-dimensional (2D) materials, and a new paradigm designing novel 2D devices. In this work, we investigate the structural electronic features of BP/MoGe2N4 heterostructure. We show that exists multiple structurally stable stacking configuration, thus revealing experimental feasibility fabricating such heterostructures. Electronically, is direct band gap...
van der Waals heterostructures provide a powerful platform for engineering the electronic properties and exploring exotic physical phenomena of two-dimensional materials. Here, we construct graphene/BSe heterostructure examine its characteristics tunability contact types under electric fields. Our results reveal that is energetically, mechanically, thermodynamically stable at room temperature. It forms p-type Schottky exhibits high carrier mobility, making it promising candidate future...
The growth of multisegment nanorods comprising gold (Au) and sacrificial silver (Ag) segments (Au-Ag-Au or Au-Ag-Au-Ag-Au) using the electrochemical wet etching method is reported. were fabricated an alumina template thickness 100 microm pore size 200 nm. A variety from single to seven alternate Au Ag with better control rate. selectively etched by removing create gaps in nanorods. careful investigation led creation a wide nanogaps nanogap was controlled passage current through process,...
Spin reorientation in the Nd1−xYxFe11Ti system due to competing anisotropies of neodymium and iron sublattices is reported. A decrease sublattice anisotropy believed be reason observed reduction spin temperature with increasing Y content. Yttrium substitution NdFe11Ti slightly reduces magnetic ordering temperature. [Russian Text Ignored].
2,4-Dinitrotoluene (DNT) is a highly toxic compound of nitrotoluene group causing negative impacts on mammals, fish, and human health that needs to be treated before discharging. The study aimed evaluate the affecting factors efficiency DNT treatment by Sono-Photo-Fenton process using zero-valent iron catalysts (nZVI), including: pH, intial concentration, nZVI catalyst hydrogen peoxide light power, ultrasonic power. After 20 minutes reaction, removal was 100% with optimal operating...
CuO nanoparticles were synthesized by alcohol-assisted hydrothermal method at various pH values, using sodium hydroxide as a precursor for control. The chemical composition, morphological and structural properties of the obtained investigated Raman energy-dispersive X-ray spectroscopies, field-emission scanning electron microscopy, diffraction. results reveal that although value does not affect formation phase, it strongly influences crystalline size, morphology, particle-agglomeration level...
Platinum (Pt) electrodes were designed in imitation of screen-printed electrodes, and prepared by microelectronic techniques. These then modified with zinc oxide (ZnO) nanofibers for biosensing applications. ZnO average length \( \sim 20-30\; \mu\) m diameter \(\sim 150\) nm hexagonal crystalline structure are using electrospinning method. Their surface characteristics analyzed field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, diffraction. Electrochemical...
Abstract Various techniques were employed to prepare a dual support system of CeZrO 2 and H-ZSM-5 (80) including physically mixing, co-precipitation sonochemical methods, which followed by the deposition bimetallic Pd Pt via wet impregnation obtain final catalysts. The catalysts tested in total methane oxidation between 200 500 °C most active is material derived from synthesis. This catalyst achieved remarkable conversion 84% at low temperature 300 high Gas Hourly Space Velocity (GHSV)...