A5061676668- Graphene research and applications
- Advanced Photocatalysis Techniques
- Supercapacitor Materials and Fabrication
- Pickering emulsions and particle stabilization
- Advancements in Battery Materials
- TiO2 Photocatalysis and Solar Cells
- Graphene and Nanomaterials Applications
- Mesoporous Materials and Catalysis
- Quantum and electron transport phenomena
- Carbon Nanotubes in Composites
- Nanomaterials for catalytic reactions
- Conducting polymers and applications
- Carbon and Quantum Dots Applications
- Electrocatalysts for Energy Conversion
- 2D Materials and Applications
- Catalytic Processes in Materials Science
- Advanced Sensor and Energy Harvesting Materials
- Surfactants and Colloidal Systems
- Heat and Mass Transfer in Porous Media
- Electrochemical sensors and biosensors
- Carbon Dioxide Capture Technologies
- Surface and Thin Film Phenomena
- ZnO doping and properties
- Gas Sensing Nanomaterials and Sensors
- Polymer Surface Interaction Studies
University of Electronic Science and Technology of China
2022-2025
Huzhou University
2025
Chinese Academy of Sciences
2012-2024
Beijing University of Chemical Technology
2015-2024
Chinese PLA General Hospital
2024
Inner Mongolia University
2024
Institute of Physics
2022-2024
Nanjing Forestry University
2023-2024
Hainan Normal University
2024
Nanjing University of Aeronautics and Astronautics
2024
Bandgap engineering of graphene is an essential step toward employing in electronic and sensing applications. Recently, nanoribbons (GNRs) were used to create a bandgap function as semiconducting switch. Although GNRs with widths <10 nm have been achieved, problems like GNR alignment, width control, uniformity, high aspect ratios, edge roughness must be resolved order introduce robust alternative technology. Here we report patterning, characterization, superior chemical ultranarrow aligned...
Spatially ordered arrays of single crystal graphene grains are synthesized by locally controlling nucleation on polycrystalline Cu using chemical vapor deposition. The can be transferred an arbitrary substrate for further characterization and device fabrication. This offers a way to potentially fabricate graphene-based devices regular microelectronic processes free grain boundaries with more reliable performances.
A porous magnetic hollow silica nanosphere (MHSN) is a new nanostructured drug carrier for increasing loading capability. Keeping the nanoparticles in core will limit toxicity and degradation biosystem. In this paper, we report synthesis of MHSNs by sol−gel method. CaCO3/Fe3O4 composite particles were first fabricated embedding Fe3O4 into CaCO3 using rotating packed bed (RPB) Tetraethoxysilane (TEOS) was then added as precursor to form (SiO2) layer on surface particles....
We have investigated the effects of thermal annealing on ex-situ chemically vapor deposited submonolayer graphene islands polycrystalline Cu foil at atomic-scale using ultrahigh vacuum scanning tunneling microscopy. Low-temperature annealed (at ∼430 °C) exhibit predominantly striped Moiré patterns, indicating a relatively weak interaction between and underlying foil. Rapid high-temperature sample 700–800 gives rise to removal oxide recovery crystallographic features copper that surrounds...
We evaluate how a second graphene layer forms and grows on Cu foils during chemical vapor deposition (CVD). Low-energy electron diffraction microscopy is used to reveal that the nucleates next substrate, i.e., under layer. This underlayer mechanism can facilitate synthesis of uniform single-layer films but presents challenges for growing bilayer by CVD. also show buried overlying layers have same edge termination.
Large-scale and transferable graphene films grown on metal substrates by chemical vapor deposition (CVD) still hold great promise for future nanotechnology. To realize the promise, one of key issues is to further improve quality graphene, e.g., uniform thickness, large grain size, low defects. Here we grow Cu foils CVD at ambient pressure, study nucleation growth processes under different concentrations carbon precursor. On basis results, develop a two-step pressure process synthesize...
Falling is an emergency situation that can result in serious injury or even death, especially the absence of immediate assistance. Therefore, developing a model accurately and promptly detect falls crucial for enhancing quality life safety. In field object detection, while YOLOv8 has recently made notable strides detection accuracy speed, it still faces challenges detecting due to variations lighting, occlusions, complex human postures. To address these issues, this study proposes SDES-YOLO...
Poly(N-isopropylacrylamide)/poly(methyl methacrylate)/silica hybrid capsules were prepared from inverse Pickering emulsion polymerization. A N-isopropylacrylamide aqueous solution was emulsified into an oil phase containing methyl methacrylate and divinyl benzene by sonication to obtain a W/O using modified silica nanoparticles as stabilizers. After the polymerized, obtained. The capsule wall contained two layers—a solid particle monolayer polymer layer—and thickness could be controlled...
We report an atomically resolved scanning tunneling microscopy investigation of the edges graphene grains synthesized on Cu foils by chemical vapor deposition. Most are macroscopically parallel to zigzag directions lattice. These have microscopic roughness that is found also follow at atomic scale, displaying many ∼120° turns. A prominent standing wave pattern with periodicity ∼3a/4 (a being lattice constant) observed near a rare-occurring armchair-oriented edge. Observed features this...
In contrast to the recent immense attention in carbon nitride quantum dots (CNQDs) as a heteroatom-doped dot (CQD), their biomedical applications have not been thoroughly investigated. Targeted cancer therapy is prominently researched area field. Here, ability of CNQDs selective bioimaging nanomaterial was investigated assist targeted therapy. were first synthesized using four different precursor sets involving urea derivatives, and characteristics compared select best candidate material for...
An atomic-scale study utilizing scanning tunneling microscopy (STM) in ultrahigh vacuum (UHV) is performed on large single crystalline graphene grains synthesized Cu foil by a chemical vapor deposition (CVD) method. After thermal annealing, we observe the presence of periodic surface depressions (stripe patterns) that exhibit long-range order formed area covered graphene. We suggest observed stripe pattern reconstruction partial dislocations (which appeared to be stair-rod-like) resulting...