A5045403732- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Advanced Battery Materials and Technologies
- Acoustic Wave Resonator Technologies
- Advancements in Battery Materials
- Advanced battery technologies research
- Dielectric materials and actuators
- Solid-state spectroscopy and crystallography
- Advanced Battery Technologies Research
- Advanced Sensor and Energy Harvesting Materials
- Perovskite Materials and Applications
- Electrocatalysts for Energy Conversion
- Microwave Dielectric Ceramics Synthesis
- Photorefractive and Nonlinear Optics
- Thermal properties of materials
- Ferroelectric and Negative Capacitance Devices
- Advanced Thermoelectric Materials and Devices
- Thermal Radiation and Cooling Technologies
- Innovative Energy Harvesting Technologies
- Electronic and Structural Properties of Oxides
- Nanomaterials for catalytic reactions
- Glass properties and applications
- Advanced Memory and Neural Computing
- MXene and MAX Phase Materials
- Dielectric properties of ceramics
Wuhan University of Technology
2017-2025
University of Liège
2023-2024
Wuhan University of Science and Technology
2022
Uneven distribution of electric fields at the electrolyte-anode interface and associated Zn dendrite growth is one most critical barriers that limit life span aqueous zinc-ion batteries. Herein, new-type Zn-A-O (A = Si, Ti) layers with thin uniform thickness, porosity, hydrophilicity properties are developed to realize homogeneous smooth plating. For ZnSiO3 nanosheet arrays on foil (Zn@ZSO), their formation follows an "etching-nucleation-growth" mechanism confirmed by a well-designed...
The corrosion, parasitic reactions, and aggravated dendrite growth severely restrict development of aqueous Zn metal batteries. Here, we report a novel strategy to break the hydrogen bond network between water molecules construct Zn(TFSI)2 -sulfolane-H2 O deep eutectic solvents. This cuts off transfer protons/hydroxides inhibits activity H2 O, as reflected in much lower freezing point (<-80 °C), significantly larger electrochemical stable window (>3 V), suppressed evaporative from...
Abstract Red phosphorus (RP), as a promising anode for potassium‐ion batteries (KIBs), and has attracted extensive attention due to its high theoretical capacity, low redox potential, abundant natural sources. However, RP shows dramatic capacity decay rapid structure degradation caused by huge volume expansion poor electronic conductivity. Here, strain‐relaxation electrode is reported, encapsulating well‐confined amorphous in 3D interconnected sulfur, nitrogen co‐doped carbon nanofibers...
Ionic dividers with uniform pores and functionalized surfaces display significant potential for solving Li-dendrite issues in Li-metal batteries. In this study, single metal nitrogen co-doped carbon-sandwiched MXene (M-NC@MXene) nanosheets are designed fabricated, which possess highly ordered nanochannels a diameter of ≈10 nm. The experiments computational calculations verified that the M-NC@MXene eliminate Li dendrites several ways: (1) redistributing Li-ion flux via ion channels, (2)...
Current research focuses on regulating Zn plating behavior to address dendrite issue. Although significant improvements in the lifespans of symmetric batteries have been achieved, full do not demonstrate a...
Increasing the thermal conductivity of substrates for heat collection and dissipation is conducive to realization wearable thermoelectric generators with light weight, low cost high power density.
In ferroelectric thin films, the remanent polarization intensity commonly decreases with electric field cycling, known as fatigue behavior. However, there is an interesting phenomenon where increases called wake-up This was first discovered in HfO2-based and mechanism of behavior has not been fully studied. this work, we adopted Nb doping to enhance relaxor characteristics Bi1/2(Na0.8K0.2)1/2TiO3 (BNKT) films. The BNKT-0.6%Nb film shows a maximum Pr value 31.49 μC/cm2 after 108 cycles better...
Although ferroelectric materials are characterised by their parallel arrangement of electric dipoles, in the right boundary conditions these dipoles can reorganize themselves into vortices, antivortices and other non-trivial topological structures. By contrast, little is known about how (or whether) antiferroelectrics, which showing an antiparallel exhibit vortices or antivortices. In this study, using advanced aberration-corrected scanning transmission electron microscopy, we uncover...
Vertical graphene, serving as a thermal interface material (TIM), is very promising for efficient dissipating. Yet, the heat-dissipating efficiency mediocre since satisfactory through-plane conductivity (κ⊥) and contact resistance (Rcontact) cannot be obtained simultaneously. In this work, we achieve TIMs with ultrahigh κ⊥ (738.6 W m−1 K−1) low Rcontact (29.2 K mm2 W−1) based on volume shrinkage of silver paste within vertical graphene monoliths (VGMs). The outstanding derives from...
The prototypical antiferroelectric perovskite ${\mathrm{PbZrO}}_{3}$ (PZO) has garnered considerable attention in recent years due to its significance technological applications and fundamental research. Many unresolved issues PZO are associated with large length- time-scales, as well finite temperatures, presenting significant challenges for first-principles density functional theory studies. Here, we introduce a deep-learnining interatomic potential of PZO, enabling investigation...
A dual-confined Li nucleation and growth design is enabled by the synergistic effect of doped N sites Ag NCs, which produces uniform nucleation. The induced Li–Ag alloy promotes epitaxial until a smooth/dense surface formed.
Abstract The corrosion, parasitic reactions, and aggravated dendrite growth severely restrict development of aqueous Zn metal batteries. Here, we report a novel strategy to break the hydrogen bond network between water molecules construct Zn(TFSI) 2 ‐sulfolane‐H O deep eutectic solvents. This cuts off transfer protons/hydroxides inhibits activity H O, as reflected in much lower freezing point (<−80 °C), significantly larger electrochemical stable window (>3 V), suppressed evaporative...
We demonstrate an effective approach to enhance the output performance of a flexible piezoelectric energy harvester by using electrodes with negative Poisson's ratio (NPR). The relationship between open-circuit voltage and is established theoretically deriving analytical expression. It reveals continuous increasing trend in decrease electrodes. Further, graphene-assembled macro-film (GAMF), NPR material excellent flexibility high conductivity, used as fabricate harvesters. Compared...
By Eu doping, the relaxor behavior of BNKT is tailored to meet tristate ferroelectric memory effect. The principle and feasibility this effect have been thoroughly illustrated both by theory experimental verification test.
Tristate ferroelectric memory and strain of Bi1/2Na1/2TiO3 (BNT)-based relaxor ferroelectrics are proposed. These effects can be realized in BNT-based materials with double-like P-E hysteresis loops obvious non-zero remanent polarization. An underlying triple-well free-energy landscape, which the state serves as an intermediate stable between two states, is thought to responsible for such a behavior provides basis tristate effect. Besides, effect utilizes inherent difference states....
Electrically and thermally induced transitions between ferroelectric relaxor states are of great importance for Bi1/2Na1/2TiO3 (BNT)-based materials because their close relevance to electromechanical properties. In this study, the electric field-temperature (E-T) phase diagrams Fe doped Bi1/2(Na0.8K0.2)1/2TiO3 (BNKT) ceramics constructed via an experiment theory combined approach. A novel phenomenological model based on Landau-Devonshire Preisach is proposed describe field transitions. Using...
${\mathrm{PbZrO}}_{3}$ and ${\mathrm{CaTiO}}_{3}$ appear a priori as similar ${\mathrm{ABO}}_{3}$ oxide perovskites with very close tolerance factors. Amazingly, they show, however, significantly distinct properties: while is prototypical antiferroelectric, not. Here, we investigate the microscopic origin of their different behaviors. From comparison harmonic anharmonic interatomic force constants, highlight that key differences are in $A\text{\ensuremath{-}}\mathrm{O}$ interactions. Then,...