A5101937808- Graphene research and applications
- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Graphene and Nanomaterials Applications
- Advanced Sensor and Energy Harvesting Materials
- Thermal properties of materials
- Polymer Nanocomposites and Properties
- Conducting polymers and applications
- Perovskite Materials and Applications
- Advanced Battery Technologies Research
- Polymer crystallization and properties
- MXene and MAX Phase Materials
- Hydrogen Storage and Materials
- Ammonia Synthesis and Nitrogen Reduction
- Electrocatalysts for Energy Conversion
- Electromagnetic wave absorption materials
- Advanced Antenna and Metasurface Technologies
- biodegradable polymer synthesis and properties
- Covalent Organic Framework Applications
- Thermal Radiation and Cooling Technologies
- Silicone and Siloxane Chemistry
- 2D Materials and Applications
- Seismic Imaging and Inversion Techniques
Fudan University
2016-2025
Yiwu Science and Technology Research Institute
2021-2025
Dalian Institute of Chemical Physics
2022-2024
Qingdao University of Science and Technology
2024
Anhui University of Technology
2022
Institute of Polymers
2016-2021
Southerners on New Ground
2021
State Key Laboratory on Integrated Optoelectronics
2019-2021
Jilin University
2019-2021
Institute of New Materials
2016-2018
For developing high performance graphene-based nanocomposites, dispersal of graphene nanosheets in polymer hosts and precise interface control are challenging due to their strong interlayer cohesive energy surface inertia. Here we report an efficient method functionalize nanosheets. The initiator molecules were covalently bonded the via a diazonium addition succeeding atom transfer radical polymerization linked polystyrene chains (82 wt% grafting efficiency) prominent confinement effect...
Rechargeable aqueous zinc-ion batteries (RZIBs) provide a promising complementarity to the existing lithium-ion due their low cost, non-toxicity and intrinsic safety. However, Zn anodes suffer from zinc dendrite growth electrolyte corrosion, resulting in poor reversibility. Here, we develop an ultrathin, fluorinated two-dimensional porous covalent organic framework (FCOF) film as protective layer on surface. The strong interaction between fluorine (F) FCOF reduces surface energy of (002)...
Single-layer graphene nanosheets (SLGNs) are prepared by reduction of well-exfoliated graphite oxide aided a surfactant (sodium dodecylbenzene sulfonate, SDBS). Grafting density and polystyrene (PS) chain lengths controlled modulating the concentrations diazonium compound monomer during grafting reaction initiator succeeding atomic transfer radical polymerization (ATRP). Atomic force microscopy (AFM), X-ray diffraction (XRD), Raman spectra transmission electron (TEM) used to confirm...
The energy-filtering effect was successfully employed at the organic–inorganic semiconductor interface of poly(3-hexylthiophene) (P3HT) nanocomposites with addition Bi2Te3 nanowires, where low-energy carriers were strongly scattered by appropriately engineered potential barrier P3HT–Bi2Te3 interface. resulting exhibited a high power factor 13.6 μW K−2 m−1 compared to that 3.9 in P3HT. transport characteristics nanocomposites, including carrier concentration, mobility, and energy-dependent...
The exquisite structure of natural materials manifests the importance particle mobility and load transfer in developing advanced polymer nanocomposites; however, it is difficult to concurrently meet these two mutually exclusive requirements. To address this issue, we demonstrate an approach that constructs a hierarchical, flexible interphase epoxy nanocomposites through local amine-rich environment around graphene sheets (GNs) volume exclusion effect grafting chains. Long-chain aromatic...
Almost 15 years have gone ever since the discovery of graphene as a single atom layer. Numerous papers been published to demonstrate its high electron mobility, excellent thermal and mechanical well optical properties. We recently seen more applications towards using in commercial products. This paper is an attempt review summarize current status research properties other 2D based materials including manufacturing characterization techniques their applications, especially electronics power...
The development of Li-S batteries is largely impeded by the complicated shuttle effect lithium polysulfides (LiPSs) and sluggish reaction kinetics. In addition, low mass loading/utilization sulfur another key factor that makes difficult to commercialize. Here, a porous catalytic V2O3/V8C7@carbon composite derived from MIL-47 (V) featuring heterostructures reported be an efficient polysulfide regulator in batteries, achieving substantial increase loading while still effectively suppressing...
It is difficult to achieve high efficiency production of hydrophobic graphene by liquid phase exfoliation due its poor dispersibility and the tendency sheets undergo π-π stacking. Here, we report a water-phase, non-dispersion method produce highly crystalline flakes, which can be stored in form concentrated slurry (50 mg mL
We present a new type of CeO2 nanodevice in which single nanowire was used as the sensing unit. It found that incorporation Pt nanocrystals on could significantly increase sensor response. A possible mechanism discussed based study morphology and surface bond states using local electron energy loss spectroscopy X-ray photoemission spectroscopy. The results provide pathway to improve performance gas sensors with good understanding nanowire’s physics chemistry.
Strength and toughness are commonly two contradictory properties in polymer materials. For elastomers, the addition of stiff filler frequently results enhanced stiffness but reduced ductility. Inspired by biomimetic studies, here we demonstrate a new method that can simultaneously improve strength while maintaining good ductility polyurethane elastomers. This constructs sacrificial bonds hidden lengths at interface graphene nanosheet/polyurethane (GN/PU) composites exploiting covalently...
Rod-like silicates (attapulgite, ATT) with covalently grafted polymer chains chemically identical to the matrix were incorporated into polyimide films, which resulted in prominent improvements strength and toughness elevation as high 51 °C of thermal decomposition temperature. The dispersion uniformity ATT nanorods was confirmed by SEM observations UV-vis spectra. High grafting efficiency on particle surface significantly confines segmental motion polyimide, causing a 33 increase glass...
Constructing flexible, high-sensitivity strain sensors with large working ranges is an urgent task in view of their widespread applications, including human health monitoring. Herein, we propose a self-compensated two-order structure strategy to significantly enhance the sensitivity and workable range sensors. Three-dimensional printing was employed construct highly stretchable, conductive polymer composite open meshes, which percolation network graphene sheets constitutes deformable path....
Highly efficient heterogeneous catalysts are desired for the development of new energy storage materials. The rational choice and use capping ligands significant importance performance optimization metal nanoparticle (NP) catalysts. By exploiting amine-rich polyethylenimine (PEI) graphene oxide (GO) as a NP support, we demonstrate that ligand, PEI deposited on GO provides novel pathway able to simultaneously control morphology, spatial distribution, surface active sites cobalt (Co) NPs,...
Spontaneous exfoliation of MoS2 is achieved in H2O2–NMP mixed solvents with a yield over 60 wt%, operated under mild conditions. H2O2-prompted sheet-tailoring effect induces size evolution nanosheets from micro-scale to nano-scale. Furthermore, the concurrent dissolution also affords an approach introduce structural defects nanosheets.
The production of ultralarge graphene oxide (ULGO) is hindered by sluggish diffusion process the oxidizing agents into graphite layers, as well sheet fracture resulting from inhomogeneous oxidation. Previous methods rely on an excess amount oxidants or multiple oxidation to overcome large resistance, but at cost ULGO yield and environmental risk. Here, we discover chemical expansion (CEG) with high solvent-accessible surface areas can effectively boost mass facilitate exhaustive low oxidant...
Low-cost, scalable preparation of high-quality graphene has been a critical challenge that hampers its large-scale application. We here propose novel, liquidphase exfoliation method in which the intercalation, expansion, and graphite are achieved all under ambient conditions, not involving any heating or high-temperature treatment. demonstrate such room-temperature liquid-phase intercalation expansion allow flakes to expand up 1000 times. Significantly different from thermally expanded...
Abstract 3D thick electrode design is a promising strategy to increase the energy density of lithium‐ion batteries but faces challenges such as poor rate and limited cycle life. Herein, coassembly method employed construct low‐tortuosity, mechanically robust electrodes. LiFe 0.7 Mn 0.3 PO 4 nanoplates (LFMP NPs) graphene are aligned along growth direction ice crystals during freezing assembled into sandwich frameworks with vertical channels, which prompts fast ion transfer within entire...
<italic>In situ</italic> formed LiF grains are confined and evenly distributed throughout a covalent organic framework (COF) film, which exhibits cooperative effectiveness to greatly stabilize the lithium metal.
Abstract The performance of lithium–sulfur (Li–S) batteries is largely hindered by the shuttle effect caused dissolution lithium polysulfides (LiPSs) and sluggish reaction kinetics LiPSs. Here, it demonstrated that nickel–cobalt double hydroxide (NiCo‐DH) shells encapsulate sulfur nanoparticles can play multiple roles in suppressing accelerating redox LiPSs combining with graphene carbon nanotubes to construct conductive networks. NiCo‐DH shell intimately contacts physically confines loss...
Abstract Rechargeable aqueous zinc‐ion batteries (ZIBs) are promising candidates for advanced electrical energy storage systems owing to low cost, intrinsic safety, environmental benignity, and decent densities. Currently, significant research efforts being made develop high‐performance positive electrodes ZIBs. Nevertheless, there still many obstacles be overcome in pursuit of the comprehensive performance cathode materials, including specific capacity, structural stability, rate...
The anode-free design is a promising strategy to increase the energy density of aqueous Zn metal batteries (AZMBs). However, scarcity Zn-rich cathodes and rapid loss limited greatly hinder their commercial applications. To address these issues, novel Zn-iodine battery (AFZIB) was designed via simple, low-cost scalable approach. Iodine plays bifunctional roles in improving AFZIB overall performance: enabling high-performance cathode modulating deposition behavior. On side, ZnI2 serves as...
Carbon nitride semiconductors are competitive candidates for visible-light-responsive photocatalysts, but encounter weakened exciton dissociation arising from the elevated Coulomb force of singlet Frenkel excitons with narrowing bandgaps. We overcome this contradiction by co-infusing π-electron-rich domains and polarizable hydroxyl units into mesoporous carbon nitride, realized solution thermal shock. The embedded delocalized π-conjugated aromatic derived nonconjugated macromolecules...