A5033651799- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advancements in Battery Materials
- Quantum Dots Synthesis And Properties
- Advanced Battery Materials and Technologies
- Perovskite Materials and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced biosensing and bioanalysis techniques
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Nanocluster Synthesis and Applications
- Magnetism in coordination complexes
- Advanced Photocatalysis Techniques
- Optical properties and cooling technologies in crystalline materials
- Crystallography and molecular interactions
- Photonic Crystals and Applications
- Luminescence Properties of Advanced Materials
- Plasmonic and Surface Plasmon Research
- TiO2 Photocatalysis and Solar Cells
- Conducting polymers and applications
- Advanced Nanomaterials in Catalysis
- Extraction and Separation Processes
- Nanomaterials for catalytic reactions
- Chemical Synthesis and Characterization
Collaborative Innovation Center of Advanced Microstructures
2016-2025
Nanjing University
2016-2025
National Laboratory of Solid State Microstructures
2019-2025
State Key Laboratory of Analytical Chemistry for Life Science
2020-2024
State Key Laboratory of Pollution Control and Resource Reuse
2022-2023
Nanjing University of Science and Technology
2007-2019
Stanford University
1993-2017
University of California, Riverside
2009-2016
University of California System
2009-2015
Stanford Medicine
2015
Abstract Silicon, because of its high specific capacity, is intensively pursued as one the most promising anode material for next‐generation lithium‐ion batteries. In past decade, various nanostructures are successfully demonstrated to address major challenges reversible Si anodes related pulverization and solid‐electrolyte interphase. However, electrochemical performance still limited by that stem from use nanomaterials. this progress report, focus on recent in development battery,...
Significance This research paper presents a novel strategy for the fabrication of metal–scaffold composite materials. Particularly, molten lithium metal is infused into surface-modified three-dimensional matrix with “lithiophilic” coating. The resulting lithium–scaffold was used as battery anodes and exhibited superior performance compared bare anodes. Whereas emphasis this study on anodes, our present work opens up direction realization other metal-anode–based systems. We believe will...
In this work we have carried out systematic studies and identified the critical role of hydrogen peroxide instead generally believed citrate in well-known chemical reduction route to silver nanoplates. This improved understanding allows us develop consistently reproducible processes for synthesis nanoplates with high efficiency yields. By harnessing oxidative power H(2)O(2), various sources including salts metallic can be directly converted assistance an appropriate capping ligand, thus...
Stable cycling of lithium metal anode is challenging due to the dendritic formation and high chemical reactivity with electrolyte nearly all materials. Here, we demonstrate a promising novel electrode design by growing two-dimensional (2D) atomic crystal layers including hexagonal boron nitride (h-BN) graphene directly on Cu current collectors. Lithium ions were able penetrate through point line defects 2D during electrochemical deposition, leading sandwiched between ultrathin Cu. The afford...
Silicon is widely recognized as one of the most promising anode materials for lithium-ion batteries due to its 10 times higher specific capacity than graphite. Unfortunately, large volume change Si during their lithiation/delithiation process results in severe pulverization, loss electrical contact, unstable solid-electrolyte interphase (SEI), and eventual fading. Although there has been tremendous progress overcome these issues through nanoscale design, improved volumetric reduced cost are...
Large-scale fabrication of a high-tape-density and high-performance nanostructured Si anode was achieved by mechanical approach.
Despite recent achievements to reduce surface quenching in NaYF(4):Yb,Er nanocrystals, a complete understanding of how the nanocrystal size affects brightness upconversion luminescence is still incomplete. Here we investigated Yb,Er-doped nanocrystals broad range sizes from 6 nm 45 (cubic or hexagonal phases), displaying an increasing red-to-green intensity ratio and reduced lifetimes with decreasing size. By analyzing process set rate equations, found that their asymptotic analytic...
Three novel interesting coordination polymers, [Cd3(SIP)2(bbi)5·3H2O]n (1), [Co3(SIP)2(bix)4(2H2O)·2H2O]n (2), and [Cd(2,5-pydc)2(bix)1.5·H2O]n (3) (SIP = 5-sulfoisophthalic acid monosodium salt; bbi 1,1'-(1,4-butanediyl)bis(imidazole); bix 1,4-bis(imidazol-1-ylmethyl)-benzene; 2,5-pydc pyridine-2,5-dicarboxylic acid), have been isolated under hydrothermal conditions structurally characterized. Polymer 1 has a 3D complicated framework comprised of an infinite 1D ladder-like chain 2D layer...
High‐performance flexible energy‐storage devices have great potential as power sources for wearable electronics. One major limitation to the realization of these applications is lack electrodes with excellent mechanical and electrochemical properties. Currently employed batteries supercapacitors are mainly based on that not enough purposes. Here, a three‐dimensionally interconnected hybrid hydrogel system carbon nanotube (CNT)‐conductive polymer network architecture reported high‐performance...
Abstract Core–shell structured Fe 3 O 4 /SiO 2 /TiO nanocomposites with enhanced photocatalytic activity that are capable of fast magnetic separation have been successfully synthesized by combining two steps a sol–gel process calcination. The as‐obtained core–shell structure is composed central magnetite core strong response to external fields, an interlayer SiO , and outer layer TiO nanocrystals tunable average size. convenient control over the size crystallinity nanocatalysts makes it...
Prelithiation is an important strategy to compensate for lithium loss in lithium-ion batteries, particularly during the formation of solid electrolyte interphase (SEI) from reduced electrolytes first charging cycle. We recently demonstrated that LixSi nanoparticles (NPs) synthesized by thermal alloying can serve as a high-capacity prelithiation reagent, although their chemical stability battery processing environment remained be improved. Here we successfully developed surface modification...
An SPR biosensor was developed by employing highly stable Au-protected Ag nanoplates (NP) as enhancers (see picture). Superior performance achieved depositing a thin and uniform coating of Au on the surface while minimizing disruptive galvanic replacement retaining strong plasmon resonance (SPR) silver nanoplates.
The future development of low-cost, high-performance electric vehicles depends on the success next-generation lithium-ion batteries with higher energy density. lithium metal negative electrode is key to applying these new battery technologies. However, problems dendrite growth and low Coulombic efficiency have proven be difficult challenges overcome. Fundamentally, two issues stem from instability solid electrolyte interphase (SEI) layer, which easily damaged by large volumetric changes...
Systematic studies of the interactions between self-healing polymer and Si particles with particle size control leads to stable electrodes high areal capacities 3–4 mAh cm−2 for low-cost, large (0.5–1.5 μm in diameter). As a service our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed may be re-organized online delivery, but not copy-edited or typeset. Technical support issues arising from (other than missing files) should...
Rational nanostructure design has been a promising route to address critical materials issues for enabling next-generation high capacity lithium ion batteries portable electronics, vehicle electrification, and grid-scale storage. However, synthesis of functional nanostructures often involves expensive starting elaborate processing, both which present challenge successful implementation in low-cost applications. In seeking sustainable cost-effective prepare nanostructured battery electrode...
Lithium metal based batteries represent a major challenge and opportunity in enabling variety of devices requiring high-energy-density storage. However, dendritic lithium growth has limited the practical application anodes. Here we report nanoporous, flexible electrochemically stable coating silica@poly(methyl methacrylate) (SiO2@PMMA) core–shell nanospheres as an interfacial layer on anode. This is capable inhibiting Li dendrite while sustaining ionic flux through it, which attributed to...
Four novel interesting cadmium(II) or zinc(II) metal coordination polymers, [Cd2(2,3-pydc)2(bix)3·2H2O]n (1), [Cd2(μ2-OH2)(2,6-pydc)2(bix)]n (2), [Cd3(SIP)2(bix)4·8H2O]n (3), and [Zn2(SIP)(bix)3(OH)·2H2O]n (4) (bix = 1,4-bis(imidazol-1-ylmethyl)-benzene; 2,3-pydc pyridine-2,3-dicarboxylic acid; 2,6-pydc pyridine-2,6-dicarboxylic SIP 5-sulfoisophthalic acid monosodium salt), have been synthesized under hydrothermal conditions structurally characterized. Polymer 1 features a 3D porous...
The size and shape of it: optical properties Ag nanoplates can be precisely tuned in a wide range through UV-light-induced reconstruction process which the morphology nanoparticles is changed from thin triangular plates to thick round (see picture). This unconventional "backward tuning" strategy practical route stable silver that display plasmon wavelengths.