A5100667488- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- Graphene research and applications
- Copper-based nanomaterials and applications
- Advanced battery technologies research
- MXene and MAX Phase Materials
- Semiconductor materials and devices
- Advanced Battery Technologies Research
- Graphene and Nanomaterials Applications
- Silicon Nanostructures and Photoluminescence
- Carbon Nanotubes in Composites
- Extraction and Separation Processes
- Nanowire Synthesis and Applications
- Conducting polymers and applications
- ZnO doping and properties
- Layered Double Hydroxides Synthesis and Applications
- Carbon and Quantum Dots Applications
- Quantum Dots Synthesis And Properties
- 2D Materials and Applications
- Flame retardant materials and properties
- Fiber-reinforced polymer composites
- Advanced Photocatalysis Techniques
- Photonic Crystals and Applications
- Advanced Antenna and Metasurface Technologies
Beijing University of Chemical Technology
2016-2025
Materials Technology (United Kingdom)
2025
State Key Laboratory of Chemical Engineering
2018-2019
Singapore University of Technology and Design
2016
Peking University
2012-2016
Institute of Microelectronics
2012-2016
Jilin University
2008
University of New Orleans
2008
Nanjing University
2007
State Key Laboratory of Transducer Technology
2007
Abstract As an emerging electrochemical energy storage device, potassium‐ion batteries (PIBs) have drawn growing interest due to the resource‐abundance and low cost of potassium. Graphite‐based materials, as most common anodes for commercial Li‐ion batteries, a very capacity when used anode Na‐ion but they show reasonable capacities PIBs. The practical application graphitic materials in PIBs suffers from poor cyclability, however, large interlayer expansion/shrinkage caused by...
A novel porous nanoarchitecture composed of 2D graphene–SnS2 (G–SnS2) units is developed via a two-step approach in this work. The special structure endows the high-rate transportation electrolyte ions and electrons throughout electrode matrix, resulting remarkable electrochemical performance when it was used as anode lithium ion batteries.
We explore in-depth the interfacial interaction between Fe3O4 nanoparticles and graphene nanosheets as well its impact on electrochemical performance of Fe3O4/graphene anode materials for lithium-ion batteries. hybrid are prepared by direct pyrolysis Fe(NO3)3·9H2O sheets. The is investigated in detail thermogravimetric differential scanning calorimetry analysis, Raman spectrum, X-ray photoelectron energy spectrum Fourier transform infrared spectroscopy. It was found that disperse...
With the increasing use of sodium-ion batteries (SIBs), developing cost-effective anode materials, such as metal oxide, for Na-ion storage is one most attractive topics. Due to obviously larger ion radius Na than that Li, oxide electrode materials fail exhibit same high performance SIBs like Li-ion batteries. Herein, iron was employed demonstrate a concept rationally designing an amorphous structure should be useful enhance oxide. Amorphous Fe2O3/graphene composite nanosheets (Fe2O3@GNS)...
Developing microwave absorption (MA) materials with ultrahigh efficiency and facile preparation method remains a challenge. Herein, superior 1D@2D@1D hierarchical structure integrated multi-heterointerfaces via self-assembly an autocatalytic pyrolysis is designed to fully unlock the attenuation potential of materials, realizing ultra-efficient MA performance. By precisely regulating morphology metal organic framework precursor toward improved impedance matching intelligently integrating...
Novel hierarchical porous carbon nanosheets (HPCS) with quantities of micropores and mesopores were prepared on a large-scale by using thermoplastic phenolic formaldehyde resin as the source copper nitrate template precursor. The HPCS, possessing thickness about 40 nm width several microns, exhibited high specific capacity favorable high-rate performance when used an anode material for lithium ion batteries (LIBs). reversible capacities 748 mA h g−1 at current density 20 460 even 1 A g−1,...
Iron sulfide-embedded carbon microspheres were prepared via a solvothermal process and show high specific capacity excellent high-rate performance as anode material for lithium-ion batteries.
A novel and general strategy for the synthesis of carbon-encapsulated metal oxide hollow nanoparticles (HNPs) pure HNPs was developed from by controlled oxidation in air. The materials were characterized transmission electron microscopy, scanning X-ray diffraction measurements. It found that morphologies compositions easily tailored through adjustment conditions. When used as anode lithium-ion batteries, α-Fe2O3 exhibit excellent cycling performance a higher reversible capacity about 700 mA...
Generally speaking, excellent electrochemical performance of metal oxide/graphene nanosheets (GNSs) composite is attributed to the interfacial interaction (or "synergistic effect") between constituents. However, there are no any direct observations on how electronic structure changed and properties Li-ion storage affected by adjusting interaction, despite limited investigations possible nature binding GNSs oxide. In this paper, CuO nanosheets/GNSs composites with a little Cu2O (ca. 4 wt %)...
Design of functional carbon-based nanomaterials from metal-organic frameworks (MOFs) has attracted soaring interests in recent years. However, a MOF-derived strategy toward two-dimensional (2D) remains great challenge. In this work, we develop layered Ni-hexamine framework as efficient precursor to prepare 2D NiSe2/N-rich carbon nanocomposite by simple pyrolysis and subsequent selenization process. the nanocomposite, NiSe2 nanoparticles with diameters ca. 75 nm are homogeneously distributed...
A tin source was introduced into ZIF-67, and after carbonization Sn–Co nanoalloys were <italic>in situ</italic> formed in N-doped carbon.
Abstract Chloride ion batteries (CIBs) are regarded as promising energy storage systems due to their large theoretical volumetric density, high abundance, and low cost of chloride resources. Herein, the synthesis CoFe layered double hydroxide in form (CoFe–Cl LDH), for use a new cathode material CIBs, is demonstrated first time. The CoFe–Cl LDH exhibits maximum capacity 239.3 mAh g −1 reversible ≈160 over 100 cycles. superb Cl − attributed its unique topochemical transformation property...
Sodium-ion battery (SIB) has been a promising alternative for sustainable electrochemical energy-storage devices. However, it still needs great efforts to develop electrode materials with ultrafast gravimetric and volumetric Na-storage performance, due difficult balance between Na-ion diffusion kinetics pressing density of materials. In this work, Bi2Se3/graphene composites, synthesized by selenization reaction, are investigated as anode SIBs. storage mechanism Bi2Se3 should be attributed...
Carbon nanosheets from triblock polymers behave well as anode materials for lithium- and sodium-ion batteries.
The CoTe<sub>2</sub>/G composite obtained by solvothermal synthesis exhibits a high gravimetric capacity of 382 mA h g<sup>−1</sup>, volumetric 695.2 cm<sup>−3</sup>, and excellent rate-performance.
In recent years, two-dimensional (2D) layered transitional metal chalcogenides (TMCs) have received much attention as promising electrode materials in energy storage. Although reports on 2D TMC nanostructures demonstrated electrochemical performances, the major scientific challenge is to develop a viable synthesis process produce structures of (Co, Ni or Fe based TMCs) anode materials. this work, we propose Co0.85Se nanosheets solution method by using oriented attachment strategy. The...
Abstract Carbon‐supported single atomic metals (SAMs) have aroused great interest in energy conversion and storage fields. However, metal content has to date, been far below expectation. Additionally, theoretical calculations show that SAMs are superb anchoring sites for alkali metal‐ion storage, but the experimental research remains untouched. Herein, a metal–organophosphine framework derived strategy is proposed prepare carbon microcuboids‐supported Cu with high of 26.3 wt%. Atomic...
Abstract Microwave absorbers with high efficiency and mechanical robustness are urgently desired to cope more complex harsh application scenarios. However, manipulating the trade‐off between microwave absorption performance properties is seldom realized in absorbers. Here, a chemistry‐tailored charge dynamic engineering strategy proposed for sparking hetero‐interfacial polarization thus coordinating attenuation ability interfacial bonding, endowing polymer‐based composites toughness. The...