A5005854055- Transition Metal Oxide Nanomaterials
- Electronic and Structural Properties of Oxides
- ZnO doping and properties
- Advancements in Battery Materials
- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Gas Sensing Nanomaterials and Sensors
- Microstructure and mechanical properties
- Quantum Dots Synthesis And Properties
- Advanced Battery Materials and Technologies
- Semiconductor materials and devices
- Semiconductor materials and interfaces
- Advanced Thermoelectric Materials and Devices
- Underwater Acoustics Research
- Advanced Photocatalysis Techniques
- Advanced Electron Microscopy Techniques and Applications
- Copper-based nanomaterials and applications
- Luminescence Properties of Advanced Materials
- Metal and Thin Film Mechanics
- Electron and X-Ray Spectroscopy Techniques
- TiO2 Photocatalysis and Solar Cells
- Environmental remediation with nanomaterials
- Thermal properties of materials
- nanoparticles nucleation surface interactions
- Silicon Carbide Semiconductor Technologies
Wuhan University
2015-2024
Jinan Maternity And Care Hospital
2024
There is an urgent need for developing electromechanical sensor with both ultralow detection limits and ultrahigh sensitivity to promote the progress of intelligent technology. Here we propose a strategy fabricating soft polysiloxane crosslinked MXene aerogel multilevel nanochannels inside its cellular walls ultrasensitive pressure detection. The easily shrinkable optimized material synergism endow piezoresistive Young's modulus (140 Pa), numerous variable conductive pathways, mechanical...
Prodigiosin (PG) is a red tripyrrole pigment from the prodiginine family that has attracted widespread attention due to its excellent biological activities, including anticancer, antibacterial and anti-algal activities. The synthesis production of PG particular significance, as it potential be utilized in number applications, those pertaining clinical drug development, food safety, environmental management. This paper provides systematic review recent research on PG, covering aspects like...
Abstract Ultrathin oxides have been reported to possess excellent properties in electronic, magnetic, optical, and catalytic fields. However, the current primary approaches toward preparation of ultrathin are only applicable amorphous or polycrystalline oxide nanosheets films. Here, we successfully synthesize high-quality antimony single crystals via a substrate-buffer-controlled chemical vapor deposition strategy. The as-obtained exhibit high dielectric constant (~100) large breakdown...
Gallium oxide (Ga2O3) has attracted extensive attention as a potential candidate for low-dimensional metal-oxide-semiconductor field-effect transistors (MOSFETs) due to its wide bandgap, controllable doping, and low cost. The structural stability of nanoscale Ga2O3 is the key parameter designing constructing MOSFET, which however remains unexplored. Using in situ transmission electron microscopy, we reveal size-dependent phase transition sub-2 nm nanowires. Based on theoretical calculations,...
Applying in situ transmission electron microscopy, the phase instability potassium tungsten bronze (KxWO3, 0.18 < x 0.57) induced by heating was investigated. The atomistic transition pathway of monoclinic K0.20WO3 → hexagonal KmWO3 (0.18 m 0.20) cubic WO3 cationic defects (K and W vacancies) directly revealed. Unexpectedly, a K+-rich tetragonal KnWO3 (0.40 n would nucleate as well, which may result from blockage K+ diffusion at grain boundaries. Our results point out critical role mediating...
The ability to understand and control the reaction mechanisms of iron (Fe) nanoparticles (NPs) has an important impact on their applications. In this paper, applying in situ transmission electron microscopy (TEM), we studied irradiation- size-dependent redox kinetics Fe. (1) irradiation effect, weaker (intensity: ∼102 A/cm2) stronger ∼103–104 beam irradiations may facilitate oxidation reduction Fe NPs, respectively. (2) size with a smaller is first oxidized into FeO, while large-sized...
Abstract Surface coating strategy has been proved essential for mitigating the large volume change in electrodes lithium‐ion batteries (LIBs) and sodium‐ion (SIBs), thus improving cyclability working efficiency of batteries. However, mechanical instability electrode generated by incorporating heterostructure interface between core materials remains largely unexplored. Here, effects carbon gold coatings on nanomechanical properties CuO nanowires (NWs) are investigated based situ experiments...
Abstract Metal oxide semiconductors (MOSs) are attractive candidates as functional parts and connections in nanodevices. Upon spatial dimensionality reduction, the ubiquitous strain encountered physical reality may result structural instability thus degrade performance of MOS. Hence, basic insight into evolutions low-dimensional MOS is a prerequisite for extensive applications, which unfortunately remains largely unexplored. Herein, we review recent progress regarding mechanical deformation...
The phase instability in layered-structure Na0.5WO3.25 induced by the extraction of Na ions was investigated applying transmission electron microscopy. Real-time atomic-scale observation reveals transition pathway: (triclinic) → NaxWO3 (cubic) WO3 (monoclinic) with specific orientation relationships. dynamic evolution Na0.5WO3.25/NaxWO3 boundaries shows that will cleave along (100)T and (010)T recrystallize as (101)C (010)C NaxWO3, respectively. pathway can be well-explained according to...
Framework structured tungsten bronzes serve as promising candidates for electrode materials in sodium-ion batteries (SIBs). However, the bronze framework structure changes drastically mediated by sodium ion concentration at high temperatures. While three-dimensional channels facilitate fast storage and transport capabilities, structural instability induced Na+ migration is a big concern regarding battery performance safety, which unfortunately remains elusive. Here, we show real-time...
Few-layer MoS2 with exceptional physical and chemical properties has attracted notable attention for next-generation gas sensors. The layer-dependent sensing performance detecting NO2 based on is not fully understood. Here, we report the direct synthesis of high-crystallinity uniform few-layer via vapor deposition. influence layer thickness NO2-sensing evaluated. We show that, as compared to monolayer trilayer counterparts, bilayer presents best sensitivity at room temperature. Further...
Unveiling the effects of oxygen vacancies on structural stability layered α-MoO3 is critical for optimizing its physical and chemical properties. Herein, we present experimental evidence regarding phase with ∼2% vacancy concentrations. Interestingly, report a previously ignored oxygen-deficient orthorhombic MoO3-x in space group Cmcm. Further density functional theory calculations reveal detailed transition mechanism from to MoO3-x. More importantly, demonstrate that two-dimensional (2D)...
Abstract In situ transmission electron microscopy has achieved remarkable advances for atomic-scale dynamic analysis in low-dimensional materials and become an indispensable tool view of linking a material’s microstructure to its properties performance. Here, accompanied with some cutting-edge researches worldwide, we briefly review our recent progress atomistic characterization under external mechanical stress, thermal excitations electrical field. The beam irradiation effects metals metal...
Correlating the microscopic structural characteristics with macroscopic electrochemical performance in electrode materials is critical for developing excellent-performance lithium-ion batteries, which however remains largely unexplored. Here, we show that Zn2SnO4 (ZTO) nanowires (NWs) smaller diameters (d < 5 nm) exhibit slower capacity fade rate and better cycling stability, as compared NWs larger ranging from tens to hundreds of nanometers. By applying situ transmission electron microscopy...