A5014585012- Ferroelectric and Piezoelectric Materials
- Dielectric materials and actuators
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced Sensor and Energy Harvesting Materials
- Advanced Memory and Neural Computing
- Advanced Battery Materials and Technologies
- Acoustic Wave Resonator Technologies
- Ferroelectric and Negative Capacitance Devices
- Advancements in Battery Materials
- Electronic and Structural Properties of Oxides
- Nanoparticles: synthesis and applications
- Advanced biosensing and bioanalysis techniques
- Dielectric properties of ceramics
- Extraction and Separation Processes
- Advanced Nanomaterials in Catalysis
- Electrochemical Analysis and Applications
- Advanced Battery Technologies Research
- Bioactive Compounds and Antitumor Agents
- Geochemistry and Elemental Analysis
- Transition Metal Oxide Nanomaterials
- Electrophoretic Deposition in Materials Science
- Analytical chemistry methods development
- 2D Materials and Applications
- Advanced battery technologies research
Shandong University
2021-2024
Pennsylvania State University
2024
Guangzhou University
2020-2023
The University of Texas at Arlington
2020-2023
Northwestern Polytechnical University
2016-2021
State Key Laboratory of Solidification Processing
2017-2020
Hebei University of Science and Technology
2013
Abstract All‐solid‐state Li‐metal batteries (ASLMBs) represent a significant breakthrough in the quest to overcome limitations associated with traditional Li‐ion batteries, particularly energy density and safety aspects. However, widespread implementation is stymied due lack of profound understanding complex mechano‐electro‐chemical behavior Li metal ASLMBs. Herein, operando neutron imaging X‐ray computed tomography (XCT) are leveraged nondestructively visualize behaviors within This...
Aqueous zinc metal batteries show great promise in large-scale energy storage. However, the decomposition of water molecules leads to severe side reactions, resulting limited lifespan Zn batteries. Here, tetrahydrofuran (THF) additive was introduced into sulfate (ZnSO4) electrolyte reduce activity by modulating solvation structure hydration layer. The THF molecule can play as a proton acceptor form hydrogen bonds with molecules, which prevent water-induced undesired reactions. Thus, an...
Van der Waals (vdW) ferroelectrics have attracted significant attention for their potential in next-generation nano-electronics. Two-dimensional (2D) group-IV monochalcogenides emerged as a promising candidate due to strong room temperature in-plane polarization down monolayer limit. However, is strongly coupled with the lattice strain and stacking orders, which impact electronic properties. Here, we utilize four-dimensional scanning transmission electron microscopy (4D-STEM) simultaneously...
Lithium (Li) dendrite growth in Li batteries is a long-standing problem, which causes critical safety concerns and severely limits the advancement of rechargeable batteries. Replacing conventional liquid electrolyte with solid high mechanical strength rigidity has become potential approach to inhibiting growth. However, there still lacks an accurate understanding role properties metal electrode In this work, we develop phase-field model coupled elastoplastic deformation investigate its...
Abstract We developed a physical model to fundamentally understand the conductive filament (CF) formation and growth behavior in switching layer during electroforming process metal-oxide-based resistive random-access memories (RRAM). The effects of electrode oxide properties on CF morphology evolution, current-voltage characteristic, local temperature, electrical potential distribution have been systematically explored. It is found that choosing active electrodes with lower oxygen vacancy...
The extreme device-to-device variation of switching performance is one the major obstacles preventing applications metal-oxide-based memristors in large-scale memory storage and resistive neural networks. Recent experimental works have reported that embedding metal nano-islands (NIs) oxides can effectively improve uniformity memristors, but underlying role NIs not fully understood. Here, to address this specific problem, we develop a physical model understand origin variability how embedded...
Abstract Metal oxide-based Resistive Random-Access Memory (RRAM) exhibits multiple resistance states, arising from the activation/deactivation of a conductive filament (CF) inside switching layer. Understanding CF formation kinetics is critical to achieving optimal functionality RRAM. Here phase-field model developed, based on materials properties determined by ab initio calculations, investigate role electrical bias, heat transport and defect-induced Vegard strain in resistive behavior,...
Ba0.6Sr0.4TiO3 (BST)/poly(vinylidene fluoride) (PVDF) 0–3 nanocomposites with BST nanoparticle contents of 10–40 vol% were prepared by tape casting method. The nanoparticles ∼60 nm crystal size and accurate atomic ratio synthesised sol–gel effect the on microstructure dielectric properties BST/PVDF investigated. system declares that feasibility applying low to form a homogeneous distribution in polymer matrix, higher dense interface connectivity, thereby providing significant improvement...
0-3 Ba <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0.6</sub> Sr xmlns:xlink="http://www.w3.org/1999/xlink">0.4</sub> TiO xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> (BST)/poly(vinylidene fluoride) (PVDF) composites were prepared via tape casting and then followed by hot pressing (HP) method. The effect of HP temperature on the microstructure, dielectric properties energy storage density investigated. With increase temperatures,...
Hollow sphere (Ba0.6 Sr0.4)TiO3 (HS-BST) powders with sub-micron size and different shell thickness were synthesised through template-assisted method. HS-BST/poly(vinylidene fluoride) (PVDF) composites prepared using tape casting The effects of particle HS-BST on the microstructure, dielectric tunability, energy storage properties HS-BST/PVDF investigated. Results showed that all particles uniformly dispersed in PVDF matrix without agglomeration. With decreasing particles, constant loss...
A novel pathway is described to synthesize a highly porous DNA hydrogel for trace PAH scavenging.
This report presents the results of high-pressure and broadband dielectric spectroscopy studies in polyvinylidene difluoride (PVDF) barium strontium titanate (BST) microparticles composites (BST/PVDF). It shows that Arrhenius behaviour for temperature-related dynamics under atmospheric pressure is coupled to Super-Arrhenius/Super-Barus isothermal changes primary relaxation time. Following these results, an explanation unique BST/PVDF composite proposed. Subsequently, it shown when...
Abstract This paper presents results of broadband dielectric spectroscopy studies in the composite system for which particularly strong interactions between polyvinylidene difluoride (PVDF: ferroelectric polymer, T C = 453−473 K) matrix and barium strontium titanate (BST) micro-particles can be expected. For PVDF super-Arrhenius (SA) dynamics, associated with segmental motions freezing at glass temperature g 235 K, is evidenced. The addition BST particles qualitatively changes converting...
Abstract Signaling molecules in cellular responses to foreign stimuli are described as static up- or down-concentration changes during signal transduction. This is because analytical methods for transducing much slower than the signaling events. In this study, we develop a dynamic cell model and reveal temporal regulation of transduction events response reactive oxygen species (ROS). The contained set 10 batches redox-modified cells that mimic ROS accumulation Validating model, discover...
The formation of solid electrolyte interphase (SEI) is critical to the overall performance lithium batteries. Here we have developed a rather comprehensive phase-field model for predicting and growth SEI, taking into account multiple electrochemical/chemical reaction pathways leading SEI products, diffusion ionic molecular species, electron tunneling. All products are treated stoichiometric compounds without typical approximation parabolic composition dependence in almost all existing models...