A5018583903- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Diamond and Carbon-based Materials Research
- Supercapacitor Materials and Fabrication
- Metal and Thin Film Mechanics
- Carbon Nanotubes in Composites
- Graphene research and applications
- Advanced battery technologies research
- Extraction and Separation Processes
- Electrochemical sensors and biosensors
- Magnesium Alloys: Properties and Applications
- Analytical Chemistry and Sensors
- Electrospun Nanofibers in Biomedical Applications
- Polymer Surface Interaction Studies
- Aluminum Alloys Composites Properties
- Dendrimers and Hyperbranched Polymers
- X-ray Spectroscopy and Fluorescence Analysis
- Electrocatalysts for Energy Conversion
- Ion-surface interactions and analysis
- Advanced materials and composites
- Electron and X-Ray Spectroscopy Techniques
- Lubricants and Their Additives
City University of Hong Kong
2019-2024
Central South University
2016-2019
State Key Laboratory of Powder Metallurgy
2017-2018
Nanchang University
2018
Southwestern Institute of Physics
2014
Abstract Rechargeable zinc‐ion batteries (ZIBs) are emerging as a promising alternative for Li‐ion batteries. However, the developed cathodes suffer from sluggish Zn 2+ diffusion kinetics, leading to poor rate capability and inadequate cycle life. Herein, an in situ polyaniline (PANI) intercalation strategy is facilitate (de)intercalation kinetics V 2 O 5 . In this way, remarkably enlarged interlayer distance (13.90 Å) can be constructed alternatively between VO layers, offering expediting...
Abstract Metal‐organic frameworks (MOFs) are of quite a significance in the field inorganic‐organic hybrid crystals. Especially, MOFs have attracted increasing attention recent years due to their large specific surface area, desirable electrical conductivity, controllable porosity, tunable geometric structure, and excellent thermal/chemical stability. Some studies shown that carbon materials prepared by as precursors can retain privileged structure MOFs, such area porous and, contrast,...
Abstract Anionic redox chemistry is emerging as a key concept in the development of high‐energy lithium‐ion batteries, it enables nearly doubled charge storage capacity, aiding high‐capacity batteries. However, anionic reactivity frequently irreversible from to discharge, leading rapid decay capacity and voltage batteries over long‐term cycling. Although possibility controlling reactions by tuning geometric electronic structures has recently been proposed, implementation this strategy still...
Layered transition-metal (TM) oxides are ideal hosts for Li
Disulfide-crosslinked hollow polyelectrolyte microcapsules composed of thiolated chitosan (CS-SH) and hyaluronic acid (HA-SH) were prepared by combining the layer-by-layer (LBL) technique horseradish peroxidase (HRP)-mediated oxidative cross-linking reaction in mild conditions. FITC-dextran-doped CaCO3 microspheres used as template core removed after LBL depositing CS-SH HA-SH on surface. The disulfide-crosslinked (CS/HA) readily fabricated HRP-mediated coupling thiol groups CS/HA shell...
Abstract Knowledge of atomic interactions with high‐energy photons or particles has opened a window to the microscopic structures materials. In particular, X‐rays and neutrons interact electrons nuclei atoms in different ways, which enables their complementary scattering, spectroscopic, imaging capabilities for structural characterizations. past decades, techniques based on X‐ray neutron interactions, capable being time‐resolved combined, have been well developed encoding various length,...
Ultrathin 1T phase VS<sub>2</sub> nanosheets were self-assembled on a flexible carbon cloth to form binder-free electrode. The electrode exhibited typical solid solution reaction, which is of great help in inhibiting the structural transition.
Abstract Layered LiNi x Co y Mn 1- - O 2 (NCM) is expected to dominate the future cathode technology of automotive industry, due its high energy density and low cost. Despite excellent prospects, however, severe capacity decay NCM cathodes has prevented this promising material from achieving further success. The mechanism underlying phenomenon controversial been generally understood as arising complex structural changes that take place upon Li-(de)intercalation. However, deeper insight not...
Niobium (Nb) and nitrogen (N) co-doped diamond-like carbon (DLC) film ((Nb:N)-DLC) was fabricated by reactive magnetron sputtering. Atomic force microscopy, Raman spectra X-ray photoelectron spectroscopy were used to characterize the morphology, microstructure, composition of (Nb:N)-DLC film. The has typical DLC characteristics with enlarged uniform specific surface area. Electrochemical tests show that proposed electrode not only presents fast apparent rate constant (1.92 × 10−2 cm s−1),...
The lifespan of lithium-ion batteries varies enormously from fundamental study to practical applications. This big difference has been typically ascribed the high degree uncertainty in unpredictable and complicated operation conditions real-life Here, we report that pause charging-discharging process, which is frequently operated practice but rarely studied academics, an important reason for performance degradation NCM111 cathode. It found during cycling could trigger a remarkable drop...
Layered O3-type transition metal oxides are promising cathode candidates for high-energy-density Li-ion batteries. However, the structural instability at highly delithiated state and low kinetics fully lithiated arduous challenges to overcome. Here, a facile approach is developed make secondary particles of Ni-rich materials with nanosheet primary grains. Because alignment grains reduces internal stress buildup within particle during charge-discharge provides straightforward paths Li...
Hydrogenated diamond-like carbon (H-DLC) were deposited on GCr15 bearing steel by double cathodes pulse glow discharge (DCPGD) plasma vapour deposition at different gas volume ratios. The surface morphology, composition, microstructure, hardness and friction properties of the H-DLC films observed. It was found that sp 3 bond content I(D)/I(G) ratio DLC between 58 61% in range 0·68–0·88, respectively. When H 2 ∶Ar∶C ranges from 4∶1∶1 to 8∶1∶1, decreases with an increase content, coefficient...