A5004203338- High-pressure geophysics and materials
- Advanced Battery Materials and Technologies
- Boron and Carbon Nanomaterials Research
- Advancements in Battery Materials
- Metal and Thin Film Mechanics
- Thermal Expansion and Ionic Conductivity
- X-ray Diffraction in Crystallography
- Diamond and Carbon-based Materials Research
- MXene and MAX Phase Materials
- Methane Hydrates and Related Phenomena
- Advanced materials and composites
- Iron-based superconductors research
- Crystallization and Solubility Studies
- Rare-earth and actinide compounds
- Magnetic and transport properties of perovskites and related materials
- Crystal Structures and Properties
- Advanced Condensed Matter Physics
- Solid-state spectroscopy and crystallography
- Advanced Battery Technologies Research
- Advanced ceramic materials synthesis
- Perovskite Materials and Applications
- Spacecraft and Cryogenic Technologies
- Geological and Geochemical Analysis
- Topological Materials and Phenomena
- Inorganic Chemistry and Materials
Southern University of Science and Technology
2016-2025
Eastern Institute of Technology, Ningbo
2023-2025
Zhejiang Chinese Medical University
2025
Eastern Institute of Technology
2024-2025
Jining Medical University
2025
Chinese PLA General Hospital
2006-2025
Tianjin University of Science and Technology
2024
Institute for Advanced Study
2024
Peking University
1987-2024
National Science Library
2024
High-pressure Raman, infrared, x-ray, and neutron studies show that H2 H2O mixtures crystallize into the sII clathrate structure with an approximate H2/H2O molar ratio of 1:2. The cages are multiply occupied, a cluster two molecules in small cage four large cage. Substantial softening splitting hydrogen vibrons indicate increased intermolecular interactions. quenched is stable up to 145 kelvin at ambient pressure. Retention such high temperatures could help its condensation planetary nebulae...
Lithium ion batteries have shown great promise in electrical energy storage with enhanced density, power capacity, charge-discharge rates, and cycling lifetimes. However common fluid electrolytes consisting of lithium salts dissolved solvents are toxic, corrosive, or flammable. Solid superionic conductivity can avoid those shortcomings work a metallic anode, thereby allowing much higher densities. Here we present novel class solid three-dimensional conducting pathways based on lithium-rich...
Hydrostatic pressure, as an alternative of chemical pressure to tune the crystal structure and physical properties, is a significant technique for novel function material design fundamental research. In this article, we report phase stability visible light response organolead bromide perovskite, CH3NH3PbBr3 (MAPbBr3), under hydrostatic up 34 GPa at room temperature. Two transformations below 2 (from Pm3̅m Im3̅, then Pnma) reversible amorphization starting from about were observed, which...
A highly stable porous lanthanide metal-organic framework, Y(BTC)(H2O)·4.3H2O (BTC = 1,3,5-benzenetricarboxylate), with pore size of 5.8 Å has been constructed and investigated for hydrogen storage. Gas sorption measurements show that this MOF exhibits selective behaviors over nitrogen gas molecules can take up about 2.1 wt % at 77 K 10 bar. Difference Fourier analysis neutron powder diffraction data revealed four distinct D2 sites are progressively filled within the nanoporous framework....
This perspective highlights the application of MOFs for solid-state electrolytes, emphasizing their advantages, challenges and future directions.
Abstract Manganese‐based materials are considered potential cathode for aqueous zinc ion batteries (ZIBs). However, the dissolution of manganese leading to an abrupt decline capacity and sluggish electrochemical reaction kinetics still main bottlenecks restricting their further development. Herein, a NiMn‐layered double hydroxide‐derived Ni‐doped Mn 2 O 3 (NM) is developed suppress manganese. The incorporation Ni 2+ can promote electronic rearrangement enhance conductivity, ultimately...
Abstract The large‐scale application of sodium/potassium‐ion batteries is severely limited by the low and slow charge storage dynamics electrode materials. crystalline carbons exhibit poor insertion capability large Na + /K ions, which limits Na/K batteries. Herein, porous S N co‐doped thin carbon (S/N@C) with shell‐like (shell size ≈20–30 nm, shell wall ≈8–10 nm) morphology for enhanced presented. Thanks to hollow structure shell‐wall, S/N@C exhibits an excellent fast mass transport at...
Abstract A fluorine‐doped antiperovskite Li‐ion conductor Li 2 (OH)X (X=Cl, Br) is shown to be a promising candidate for solid electrolyte in an all‐solid‐state rechargeable battery. Substitution of F − OH transforms orthorhombic OHCl room‐temperature cubic phase, which shows electrochemical stability 9 V versus + /Li and two orders magnitude higher conductivity than that OHCl. An Li/LiFePO 4 with F‐doped as the showed good cyclability high coulombic efficiency over 40 charge/discharge cycles.
Nitrogen-rich transition-metal nitrides hold great promise to be the next-generation catalysts for clean and renewable energy applications. However, incorporation of nitrogen into crystalline lattices transition metals is thermodynamically unfavorable at atmospheric pressure; most known metal are nitrogen-deficient with molar ratios N:metal less than a unity. In this work, we have formulated high-pressure route synthesis nitrogen-rich molybdenum nitride through solid-state ion-exchange...
An organic-inorganic halide perovskite of CH3NH3SnI3 with significantly improved structural stability is obtained via pressure-induced amorphization and recrystallization. In situ high-pressure resistance measurements reveal an increased electrical conductivity by 300% in the pressure-treated perovskite. Photocurrent also a substantial enhancement visible-light responsiveness. The mechanism underlying enhanced properties demonstrated to be associated stability.
Rechargeable aqueous zinc-ion batteries (AZIBs) are considered for emerging cutting-edge energy storage technologies as an alternative to the existing nonaqueous lithium-ion (LIBs) owing their inimitable advantages of low-cost materials, high safety, abundance, and environmental friendliness. Nevertheless, key challenges AZIBs mainly due development cathode (positive electrode) materials. Here, we report synthesis vanadium-based oxides on two-dimensional (2D) vanadium carbide MXene...
Abstract Anisotropic hydrogels mimicking the biological tissues with directional functions play essential roles in damage‐tolerance, cell guidance and mass transport. However, conventional synthetic often have an isotropic network structure, insufficient mechanical properties lack of osteoconductivity, which greatly limit their applications for bone repair. Herein, inspired by natural wood, a biomimetic strategy is presented to fabricate highly anisotropic, ultrastrong stiff, osteoconductive...
Antiperovskite Li3OCl superionic conductor films are prepared via pulsed laser deposition using a composite target. A significantly enhanced ionic conductivity of 2.0 × 10−4 S cm−1 at room temperature is achieved, and this value more than two orders magnitude higher that its bulk counterpart. The applicability as solid electrolyte for Li-ion batteries demonstrated. Electrical energy storage becomes increasingly important. It was reported by McKinsey the potential economic impact improved...
Self-trapped exciton (STE) emissions derived from inorganic octahedral units make metal halide perovskites promising photoluminescence materials for light-emitting applications. However, there is still little understanding of the intrinsic STE in or derivatives with nonoctahedral units. In this work, via high pressure compression, remarkable emission enhancement is, first time, realized one-dimensional CsCu2I3 crystals {CuCl4} tetrahedral The intertetrahedral distortion believed to induce...
Di-coordination-strength anions can simultaneously solvate lithium and tether aluminium in low-temperature metal batteries: the weakly coordinated anion exerts high ionic transport kinetics while strongly stabilizes surface.
Detailed study of the equation state, elasticity, and hardness selected superconducting transition-metal nitrides reveals interesting correlations among their physical properties. Both bulk modulus Vickers are found to decrease with increasing zero-pressure volume in NbN, HfN, ZrN. The computed elastic constants from first principles satisfy c11 > c12 c44 for but HfN ZrN, which good agreement neutron scattering data. cubic delta-NbN phase possesses a 348 GPa, comparable that boron nitride,...
The ${\mathrm{D}}_{2}$ clathrate hydrate crystal structure was determined as a function of temperature and pressure by neutron diffraction for the first time. hydrogen occupancy in $(32+\mathrm{X}){\mathrm{H}}_{\mathrm{2}}\mathrm{\ifmmode\cdot\else\textperiodcentered\fi{}}136{\mathrm{H}}_{\mathrm{2}}\mathrm{O}$, $\mathrm{x}=0\ensuremath{-}16$ can be reversibly varied changing large (hexakaidecahedral) cage between two four molecules, while remaining single small (dodecahedral) cage. Above...
The Vickers hardness of boron suboxide single crystals was measured using a diamond indentation method. Under loading force 0.98 N, our test gave an average 45 GPa. fracture toughness as 4.5 MPa m1/2. We also the cubic nitride and sapphire for comparison. found to be very close that under same force. Our results suggest could new superhard material industrial applications, surpassed in only by nitride.