A5004557249- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Photochromic and Fluorescence Chemistry
- Graphene research and applications
- Rheology and Fluid Dynamics Studies
- Mesoporous Materials and Catalysis
- Zeolite Catalysis and Synthesis
- Material Dynamics and Properties
- Advanced Battery Technologies Research
- Synthesis and biological activity
- Advanced biosensing and bioanalysis techniques
- Polymer crystallization and properties
- Advanced Electron Microscopy Techniques and Applications
- Pregnancy and Medication Impact
- Heat and Mass Transfer in Porous Media
- Chemical Synthesis and Characterization
- Polymer Nanocomposite Synthesis and Irradiation
- Covalent Organic Framework Applications
- Liver physiology and pathology
- Clay minerals and soil interactions
- Cancer Mechanisms and Therapy
- DNA and Nucleic Acid Chemistry
- Multicomponent Synthesis of Heterocycles
- Copper-based nanomaterials and applications
Oak Ridge National Laboratory
2024
Material Sciences (United States)
2024
University of Virginia
2024
Tsinghua University
2018-2023
University of California, Los Angeles
2020-2021
University of California System
2020
Los Angeles City College
2020
Hangzhou Women’s Hospital
2019
Jiangxi Science and Technology Normal University
2016-2018
University of Chinese Academy of Sciences
2018
Abstract Limited by the size of microelectronics, as well space electrical vehicles, there are tremendous demands for lithium-ion batteries with high volumetric energy densities. Current batteries, however, adopt graphite-based anodes low tap density and gravimetric capacity, resulting in poor performance metric. Here, encapsulating nanoparticles metallic tin mechanically robust graphene tubes, we show capacities, rate performance, long cycling life. Pairing a commercial cathode material...
Gel polymer electrolytes (GPL) that comprise polymer, lithium salts, and organic plasticizers hold great promise for safer lithium-ion batteries, because of liquid-like ionic conductivity, as well solid-like leakage-free property. However, only a small portion ion conduction effectively carried by Li+ ions (or low transference number) gives rise to poor interfacial stability between GPL with electrodes limited practicability. Here, metal-organic framework (MOF) containing open-metal sites...
Lithium iron phosphate (LiFePO4) is broadly used as a low-cost cathode material for lithium-ion batteries, but its low ionic and electronic conductivity limit the rate performance. We report herein synthesis of LiFePO4/graphite composites in which LiFePO4 nanoparticles were grown within graphite matrix. The matrix porous, highly conductive, mechanically robust, giving electrodes outstanding cycle performance high capability. High-mass-loading with reversible capacity (160 mA h g–1 under 0.2...
Abstract The preparation of high‐quality two‐dimensional materials with highly interesting properties and applications, such as graphene analogues, is a rapidly expanding research area. Herein, porous Co 3 O 4 sheets high uniformity were synthesized via facile hydrothermal route. Various characterizations performed to investigate this sheet‐like structure. Owing the desired promotion effects multiple functionalities derived from unique structure, present an enhanced photocatalytic...
Abstract Despite the progress made on production of graphene using liquid‐phase exfoliation methods, fabrication with both high conductivity and dispersibility remains challenging. Through catalytic graphite, an effective synthesis method for large lateral size (≈10 µm), (926 S cm –1 ), excellent water solubility mg mL ) is reported herein. Such can be used broadly applications such as lithium ion batteries, where are required. As example, lithium‐iron‐phosphate composites demonstrated,...
CuCrP2S6 (CCPS), a type-II multiferroic material, exhibits unique phase transitions involving ferroelectric, antiferroelectric, and antiferromagnetic ordering. In this study, we conduct comprehensive investigation on the intricate their couplings in CCPS across wide temperature range from 4 to 345 K through Raman spectroscopic measurements down 5 cm-1. We first assign observed modes with support of theoretical calculations angle-resolved polarized measurements. further present clear...
The photoisomerization of azobenzenes provides a general means for the photocontrol many important biomolecular structures and organismal functions. For temporal spatial control activity thrombin binding aptamer (TBA) by light, azobenzene derivatives were carefully selected as light-triggered molecular switches to replace TT loops TGT loop TBA reversibly enzyme activity. These molecules interconverted between trans cis states under alternate UV visible light irradiation, which consequently...
Asiatic acid (AA) is one of the major components Chinese herb Centella asiatica and exerts a variety pharmacological activities. However, effects AA on pelvic inflammatory disease (PID) remain unknown. The purpose present study was to investigate therapeutic efficacy potential mechanisms PID in rats. A total 75 female Sprague Dawley rats were randomly divided into following five groups: control group; + 5 mg/kg 35 group. Changes cytokine chemokine levels, myeloperoxidase (MPO) activity,...
We combine the recently proposed spherical harmonic expansion (SHE) method [Phys. Rev. X 2017, 7, 031003] with a modified network model to analyze small-angle neutron scattering (SANS) spectra from deformed entangled polymers. Focusing on leading anisotropic component and isotropic in SHE, analysis gives reliable value of stretch ratio end-to-end vector, reasonable estimation radius gyration, single chain polymers undergoing uniaxial deformation relaxation. Moreover, it provides practical...
Adding particles of metal–organic frameworks into liquid electrolytes produces semiliquid electrolytes, which are suitably applicable for lithium batteries that require durability under high-rate operation.
Introducing a high-quality carbonaceous coating on microparticulate Li<sub>2</sub>TiSiO<sub>5</sub> (LTSO) by chemical vapor deposition (CVD) yields practical composite anode (LTSO/C) with graphite-like capacity and Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>-like rate capability.
Short-lived elastic regions in colloidal supercooled liquids under shear flow provide the mechanism for nonlinear viscoelasticity these fluids, shedding light on more general behavior of soft condensed matter.
Atomic arrangements and local sub-structures fundamentally influence emergent material functionalities. The structures are conventionally probed using spatially resolved studies the property correlations usually deciphered by a researcher based on sequential explorations auxiliary information, thus limiting throughput efficiency. Here we demonstrate Bayesian deep learning framework that automatically correlates structure with its electronic properties scanning tunneling microscopy (STM)...
EuM2As2 (M = Zn, Cd, In, Sn etc.) is an excellent material system for studying topological properties, which can be easily tuned by magnetism involved. Theoretical calculations predict gapped and flat bands in EuZn2As2 but gapless structure EuCd2As2. In this work, low-temperature (77 K) cleaved crystals are studied using scanning tunneling microscopy/spectroscopy (STM/S) density functional theory (DFT) calculations. Defects-induced local of states (LDOS) modification with a triangular shape...
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Azo bonds as reactive sites can be widely applied to many fields.Through the introduction of azo bonds, multiple functions commendably combined on basis single function original system.Studies are focused photoisomerization properties and applications azobenzene derivates.However, reduction cleavage reactions have attracted more attention in recent years because their application vivo.This review mainly introduced mechanism reductants that include glutathione, sodium dithionite...
4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate ( 1) is an important intermediate in many biologically active compounds such as crizotinib.In this work, compound (1) was synthesized through three steps, using tert-butyl-4-hydroxypiperdine-1-carboxylate starting material.And the structures of tert -butyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxy late confirmed by MS and 1 HNMR spectrum.The total yield steps 49.9%.
We experimentally investigate the structure, dynamics, and linear rheology of dendrimer solutions as a model system Gaussian-core fluids ultrasoft colloids, compare results with those obtained by coarse-grained approach. In overpacked regime, particles pack in way similar to Bernal's celebrated plasticine model. Meanwhile, interparticle interaction displays counterintuitive softening under densification. Such behaviors result transport properties remarkably different from predictions simple...