A5102023597- Hydrogels: synthesis, properties, applications
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Surfactants and Colloidal Systems
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Polymer Surface Interaction Studies
- Advanced Sensor and Energy Harvesting Materials
- Advanced Polymer Synthesis and Characterization
- Pickering emulsions and particle stabilization
- Proteins in Food Systems
- Electrostatics and Colloid Interactions
- Conducting polymers and applications
- Surface Modification and Superhydrophobicity
- GaN-based semiconductor devices and materials
- Metal and Thin Film Mechanics
- VLSI and Analog Circuit Testing
- VLSI and FPGA Design Techniques
- Advanced battery technologies research
- biodegradable polymer synthesis and properties
- Liquid Crystal Research Advancements
- Copper-based nanomaterials and applications
- Evolutionary Algorithms and Applications
- Polymer composites and self-healing
- Electrohydrodynamics and Fluid Dynamics
Southern University of Science and Technology
2017-2025
South China University of Technology
2014-2025
Changchun University of Science and Technology
2025
Lawrence Berkeley National Laboratory
2019-2021
Henan Provincial Chest Hospital
2020
Hefei National Center for Physical Sciences at Nanoscale
2005-2016
University of Science and Technology of China
2006-2016
Collaborative Innovation Center of Chemistry for Energy Materials
2016
Sun Yat-sen University
1995-2014
Chinese University of Hong Kong
2001-2009
Abstract Gel electrolytes have attracted increasing attention for solid-state supercapacitors. An ideal gel electrolyte usually requires a combination of advantages high ion migration rate, reasonable mechanical strength and robust water retention ability at the solid state ensuring excellent work durability. Here we report zwitterionic that successfully brings synergic channels, manifesting in superior electrochemical performance. When applying electrolyte, our graphene-based supercapacitor...
Abstract With extremely high specific capacity, silicon has attracted enormous interest as a promising anode material for next‐generation lithium‐ion batteries. However, suffers from large volume variation during charge/discharge cycles, which leads to the pulverization of and subsequent separation conductive additives, eventually resulting in rapid capacity fading poor cycle life. Here, it is shown that utilization self‐healable supramolecular polymer, facilely synthesized by...
Abstract The electrochemical stability window of the electrolyte solution limits energy content non-aqueous lithium metal batteries. In particular, although electrolytes comprising fluorinated solvents show good oxidation against high-voltage positive electrode active materials such as LiNi 0.8 Co 0.1 Mn O 2 (NCM811), ionic conductivity is adversely affected and, thus, battery cycling performance at high current rates and low temperatures. To address these issues, here we report design...
The components and structures of the solid-electrolyte interphase (SEI) are critical for stable cycling lithium metal batteries (LMBs). LiF has been widely studied as dominant component SEI, but Li2O, which a much lower diffusion barrier Li+, rarely investigated SEI. effect Li2O-dominated SEI on electrochemical performance still remains elusive. Herein, an ultrastrong coordinated cosolvation diluent, 2,3-difluoroethoxybenzene (DFEB), is designed to modulate solvation structure tailor LMBs....
In this work, well-shaped In(OH)3 hollow microspheres have been successfully prepared via a novel surfactant-free vesicle−template−interface route in the "formamide−resorcinol−water" system, which spontaneous vesicles were formed under hydrothermal conditions and NH3 from hydrolysis of formamide acted as OH- provider. Morphological structural characterizations indicate that shells as-prepared constructed by numerous nanocubes about 80 nm size. As desired, In2O3 obtained annealing designed...
Narrowly distributed ultralong linear poly(N-isopropylacrylamide) (PNIPAM) (Mw = 2.63 × 107 g/mol and Mw/Mn < 1.1) was successfully prepared by a combination of fractionation filtration. Using this PNIPAM sample, we have studied the conformation change individual chains in different methanol/water mixtures at 20 °C. Both water methanol are good solvents for PNIPAM, but not proper mixture them. The chain collapsed sharply from coil to stable globule when content (xmethanol) reached ∼17 mol %....
Here we have obtained a temperature responsive melamine sponge with controllable wettability between superhydrophilicity and superhydrophobicity by grafting the octadecyltrichlorosilane thermoresponsive poly(N-isopropylacrylamide) (PNIPAAm) onto surface of skeletons. The whole process included silanization in which step rough low energy NH2 were provided, atom transfer radical polymerization ensured successful PNIPAAm skeleton's surface. product exhibits good reversible switch changing below...
We report here a supramolecular hydrogel displaying wide array of dynamic desirable properties. The key is using an ABA triblock copolymer containing central poly(ethylene oxide) block and terminal poly(N-isopropylacrylamide) (PNIPAm) with ureido pyrimidinone (UPy) moieties randomly incorporated. Rapid hydrogelation triggered upon increasing temperature above the lower critical solution (LCST) copolymer, where PNIPAm segments dehydrate assemble into micelles, which subsequently provide...
Micro silicon is considered as the most prospective anode material for large-scale application of lithium-ion batteries (LIBs) due to its low production cost and diverse accessibilities. However, micro anodes coupled with conventional binders generally show poor performances in LIBs. Therefore, developing new high performance LIBs highly desirable. In this work, we report first lignin-derived water-soluble binder (lignin-graft-sodium polyacrylate, PAL–NaPAA) anodes. The PAL–NaPAA obtained...
Self-healing hydrogels have been studied by many researchers via multiple cross-linking approaches including physical and chemical interactions. It is an interesting project in multifunctional hydrogel exploration that a water soluble polymer matrix cross-linked combining the ionic coordination hydrogen bonds to fabricate self-healing with injectable property. This study introduces general procedure of preparing (termed gelatin-UPy-Fe) both Fe3+ carboxyl group from gelatin quadruple bonding...
Abstract Electrolytes with high stability against both Li anode and high‐voltage cathode are critical for high‐energy long‐cycling lithium metal batteries (LMBs). However, the free active solvents in common electrolytes susceptible to decomposition at cathode. Although recently developed locally high‐concentration (LHCEs) have largely restricted via + coordination, molecules still released upon desolvation of surface electrodes, causing continuous during processes. Here, a molecule...
Abstract Local high concentration electrolytes (LHCEs) have been proved to be one of the most promising systems stabilize both voltage cathodes and Li metal anode for next‐generation batteries. However, solvation structures interactions among different species in LHCEs are still convoluted, which bottlenecks further breakthrough on electrolyte development. Here, it is demonstrated that hydrogen bonding interaction between diluent solvent crucial construction corresponding interphase...
Both water and methanol are good solvents for poly( $N$-isopropylacrylamide) (PNIPAM) at room temperature, but strangely not a mixture of them. Using narrowly distributed linear PNIPAM chains ( ${M}_{w}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}2.6\ifmmode\times\else\texttimes\fi{}{10}^{7}\phantom{\rule{0ex}{0ex}}\mathrm{g}/\mathrm{mol}$ ${M}_{w}{/M}_{n}<1.1$), we have, the first time, observed coil-to-globule-to-coil transition single chain when was gradually added into water. This...
Aggregation and dissolution of poly(N-isopropylacrylamide) (PNIPAM) in water were investigated using an ultrasensitive differential scanning calorimetry (US-DSC) a pressure perturbation (PPC). US-DSC reveals that both the aggregation PNIPAM chains are greatly dependent on rate, indicating processes kinetically controlled. The hysteresis process was found to have nonequilibrium nature, which is thought be related additional hydrogen bondings formed collapsed state chains. A bimodal appearing...
Two faces: Starting from mixed shell micelles, amphiphilic Janus particles with opposite hydrophobic and hydrophilic complex sides were obtained by intramicellar complexation between the core at pH 3.1 (see picture). Hierarchical self-assembly of these in water resulted a nanoscale tubular superstructure, which was then converted into regular nanosheets upon ultrasonication. Detailed facts importance to specialist readers are published as "Supporting Information". Such documents...
We have comparatively studied the association of cyclic- and linear-poly(N-isopropylacrylamide) (c-PNIPAM l-PNIPAM) chains with varying chain lengths end groups in dilute aqueous solutions by laser light scattering (LLS) stopped-flow temperature-jump measurements. Dynamic static LLS results reveal that heating leads to a microphase transition. The resultant structures interchain aggregates depend on rate topologies. In comparison l-PNIPAM chains, slow c-PNIPAM solution stable mesoglobules...
Our previous studies of the captioned transition have shown that thermally sensitive poly(N-isopropylacrylamide) (PNIPAM) in water can form stable individual single-chain globules, but not for polystyrene (PS) cyclohexane. In current study, using poly(N,N-diethylacrylamide) (PDEAM) (Mw = 1.7 × 107 g/mol and Mw/Mn 1.06) with no hydrogen donator site, we intend to find whether intrachain bonding plays a role stabilizing collapsed PNIPAM globules. We found PDEAM also globules even though is...
In situ precision synthesis of monodisperse hairy plasmonic nanoparticles with tailored dimensions and compositions by capitalizing on amphiphilic star‐like diblock copolymers as nanoreactors are reported. Such comprise uniform noble metal intimately perpetually capped hydrophobic polymer chains (i.e., “hairs”) even length. Interestingly, copolymer retain the spherical shape under reaction conditions, diameter resulting thickness situated surface nanoparticle can be readily precisely...