A5006577991- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- Advanced Thermoelectric Materials and Devices
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Advanced Photocatalysis Techniques
- Chalcogenide Semiconductor Thin Films
- MXene and MAX Phase Materials
- Graphene research and applications
- Thermal properties of materials
- 2D Materials and Applications
- Quantum Dots Synthesis And Properties
- Transition Metal Oxide Nanomaterials
- Advanced Battery Technologies Research
- Extraction and Separation Processes
- Thermal Radiation and Cooling Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Conducting polymers and applications
- Perovskite Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Copper-based nanomaterials and applications
- Fuel Cells and Related Materials
- CO2 Reduction Techniques and Catalysts
- ZnO doping and properties
Nanyang Technological University
2016-2025
Hubei University of Science and Technology
2025
Agency for Science, Technology and Research
2022-2025
Institute of Materials Research and Engineering
2022-2025
Chinese Academy of Sciences
2025
Xuzhou Medical College
2023-2025
Second People’s Hospital of Huai’an
2023-2025
Soochow University
2022-2024
Nanjing University of Aeronautics and Astronautics
2024
Zhejiang University of Technology
2020-2023
Chemical vapor deposition is used to prepare novel 3D graphene networks, with ethanol as the carbon source. These networks are templates for construction of graphene/metal oxide composite-based supercapacitor electrodes. As a proof concept, NiO deposited on networks. The product exhibits high specific capacitance about 816 F g−1 at scan rate 5 mV s−1 and good cycling performance.
Advanced electrodes with a high energy density at power are urgently needed for high-performance storage devices, including lithium-ion batteries (LIBs) and supercapacitors (SCs), to fulfil the requirements of future electrochemical sources applications such as in hybrid electric/plug-in-hybrid (HEV/PHEV) vehicles.
A straightforward one-step chemical method to in situ synthesis of Ag nanoparticles (Ag NPs) on single-layer graphene oxide (GO) and reduced (r-GO) surfaces is proposed. After simply heating the GO or r-GO adsorbed 3-aminopropyltriethoxysilane (APTES)-modified Si/SiOx substrates a silver nitrate aqueous solution at 75 °C, NPs are synthesized grow surface. The obtained investigated by atomic force microscopy, scanning electron X-ray diffraction, transmission Raman spectroscopy. Our unique...
With the increased demand in energy resources, great efforts have been devoted to developing advanced storage and conversion systems. Graphene graphene‐based materials attracted attention owing their unique properties of high mechanical flexibility, large surface area, chemical stability, superior electric thermal conductivities that render them choices as alternative electrode for electrochemical This Review summarizes recent progress graphene four systems, i.e., lithium‐ion batteries,...
3D hollow hybrid composites with ultrafine cobalt sulfide nanoparticles uniformly embedded within the well-graphitized porous carbon polyhedra/carbon nanotubes framework are rationally fabricated using a green and one-step method involving simultaneous pyrolysis sulfidation of ZIF-67. Because synergistic coupling effects favored by unique nanohybridization, these exhibit high specific capacity, excellent cycle stability, superior rate capability when evaluated as electrodes in lithium-ion...
A three-dimensional graphene network (3DGN) grown on nickel foam is an excellent template for the synthesis of graphene-based composite electrodes use in supercapacitors. Ni(OH)2nanosheets coated onto single-crystal Ni3S2nanorods surface 3DGN (referred to as Ni3S2@Ni(OH)2/3DGN) are synthesized using a one-step hydrothermal reaction. SEM, TEM, XRD and Raman spectroscopy used investigate morphological structural evolution Ni3S2@Ni(OH)2/3DGN. Detailed electrochemical characterization shows that...
Intercalation and exfoliation of lithium: Few-layer-thick inorganic nanosheets (BN, NbSe2, WSe2, Sb2Se3, Bi2Te3) have been prepared from their layered bulk precursors by using a controllable electrochemical lithium intercalation process (see picture). The conditions, such as cut-off voltage discharge current, systematically studied optimized to produce high-quality BN NbSe2 nanosheets.
Abstract A novel composite, MoS 2 ‐coated three‐dimensional graphene network (3DGN), referred to as /3DGN, is synthesized by a facile CVD method. The 3DGN, composed of interconnected sheets, not only serves template for the deposition , but also provides good electrical contact between current collector and deposited . As proof concept, /3DGN used an anode material lithium‐ion batteries, shows excellent electrochemical performance, which exhibits reversible capacities 877 665 mAh g −1 during...
We report a facile way to grow various porous NiO nanostructures including nanoslices, nanoplates, and nanocolumns, which show structure-dependence in their specific charge capacitances. The formation of controllable porosity is due the dehydration re-crystallization β-Ni(OH)2 nanoplates synthesized by hydrothermal process. Thermogravimetric analysis shows that decomposition temperature related morphology. In electrochemical tests, stable cycling performance with retention capacitance over...
A 3D hierarchical meso- and macroporous Na3V2(PO4)3-based hybrid cathode with connected Na ion/electron pathways is developed for ultra-fast charge discharge sodium-ion batteries. It delivers an excellent rate capability (e.g., 86 mA h g(-1) at 100 C) outstanding cycling stability 64% retention after 10,000 cycles C), indicating its superiority in practical applications.
Graphene has attracted increasing attention due to its unique electrical, optical, optoelectronic, and mechanical properties, which have opened up huge numbers of opportunities for applications. An overview the recent research on graphene derivatives is presented, with a particular focus synthesis, applications in solar cells.
High symmetric porous Co3O4 hollow dodecahedra constructed by nanometer-sized building blocks are rationally synthesized templating against Co-containing zeolitic imidazolate framework-67. The well-defined structure and highly framework render these exhibit high specific capacity, excellent cycling stability superior rate capability when evaluated as an anode material for lithium-ion batteries.
We report a facile approach to synthesize nanocomposites with Fe3O4 nanopaticles (NPs) attached reduced graphene oxide (rGO) sheets by solvothermal process, which combines the growth of NPs and reduction GOs in one single step. These Fe3O4/rGO were further used fabricate thin film supercapacitor electrodes using spray deposition technique without addition insulating binders. It was found that showed much higher specific capacitances than either pure rGO or NPs. carried out electrochemical...
Energy storage and conversion technologies are vital to the efficient utilization of sustainable renewable energy sources. Rechargeable lithium‐ion batteries (LIBs) emerging sodium‐ion (SIBs) considered as two most promising devices, electrocatalysis processes play critical roles in techniques that achieve mutual transformation between electricity chemical energies. It has been demonstrated nanostructured metal chalcogenides including sulfides selenides show great potential for due their...
Over the past three decades, intensive research activities have focused on development of electrochemical energy storage devices, particularly exploiting concept flow batteries. Amongst these, vanadium redox batteries (VRFB) are an attractive option, which been studied extensively and now being commercialized around world. The performance VRFB system is governed by several critical components namely electrolyte, electrode, ion‐exchange membrane field design. Here, focus mainly recent...
Reduced graphene oxide-wrapped MoO3M (rGO/MoO3 ) is prepared by a novel and simple method that developed using metal-organic framework as the precursor. After two-step annealing process, obtained rGO/MoO3 composite used for high-performance supercapacitor electrode. Moreover, an all-solid-state flexible fabricated based on composite, which shows stable performance under different bending states.
Hollow hierarchical spheres self-organized from the ultrathin nanosheets of α-Fe2O3 were prepared by a simple process. These nanosheet subunits possess an average thickness around 3.5 nm and show preferential exposure (110) facets. Their Li ion storage visible-light photocatalytic water oxidation performance are tested. Such nanostructures high properties with good cycling stability excellent rate capabilities. The catalytic activity is 70 μmol h−1 g−1 for O2 evolution under visible light...
We demonstrate in this paper facile synthesis of CoS 2 and NiS hollow spheres with various interiors through a solution‐based route. The obtained microspheres constructed by nanosheets display three‐dimensional architecture solid, yolk‐shell, double‐shell, respectively, continuous changes specific surface areas pore‐size distributions. Especially, the excellent supercapacitive performance including high capacitance, good charge/discharge stability long‐term cycling life, owing to greatly...
Sodium‐ion batteries (SIBs) are still confronted with several major challenges, including low energy and power densities, short‐term cycle life, poor low‐temperature performance, which severely hinder their practical applications. Here, a high‐voltage cathode composed of Na 3 V 2 (PO 4 ) O F nano‐tetraprisms (NVPF‐NTP) is proposed to enhance the density SIBs. The prepared NVPF‐NTP exhibits two high working plateaux at about 4.01 3.60 versus + /Na specific capacity 127.8 mA h g −1 . reaches...