A5101603137- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Graphene research and applications
- Advanced Battery Technologies Research
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Extraction and Separation Processes
- Semiconductor materials and devices
- Semiconductor materials and interfaces
- Nanowire Synthesis and Applications
- Metamaterials and Metasurfaces Applications
- Graphene and Nanomaterials Applications
- Nanomaterials for catalytic reactions
- Quantum Dots Synthesis And Properties
- Advanced Sensor and Energy Harvesting Materials
- Layered Double Hydroxides Synthesis and Applications
- Magnetic Properties and Synthesis of Ferrites
- Catalytic Processes in Materials Science
- Advanced Materials and Mechanics
- Conducting polymers and applications
- Carbon Nanotubes in Composites
- Chalcogenide Semiconductor Thin Films
- Molecular Junctions and Nanostructures
- Fuel Cells and Related Materials
Chinese Academy of Sciences
2016-2025
University of Chinese Academy of Sciences
2021-2025
Ningbo Institute of Industrial Technology
2016-2025
Beijing Graphene Institute
2023
Guangdong University of Technology
2023
Analysis and Testing Centre
2022
China National Center for Food Safety Risk Assessment
2021
Battery Park
2017-2019
Shanghai University
2019
Binghamton University
2007-2017
We report on the controlled synthesis of single-crystal platelets α- and β-Co(OH)2 via homogeneous precipitation using hexamethylenetetramine as a hydrolysis agent. The hexagonal several micrometers in width about 15 nm thickness were reproducibly yielded rather dilute CoCl2 solutions presence absence NaCl at 90 °C, respectively. phase size control products achieved by varying both concentrations. Polarized optical microscope observations revealed clear liquid crystallinity colloidal...
Abstract Lattice oxygen can play an intriguing role in electrochemical processes, not only maintaining structural stability, but also influencing electron and ion transport properties high-capacity oxide cathode materials for Li-ion batteries. Here, we report the design of a gas–solid interface reaction to achieve delicate control activity through uniformly creating vacancies without affecting integrity Li-rich layered oxides. Theoretical calculations experimental characterizations...
Exfoliation of layered double hydroxides (LDHs) into single layers provides a new type nanosheet with ultimate two-dimensional anisotropy and positive charge. In this Highlight article, we briefly review the latest advances in emerging field. comparison previous studies, show that micrometer-sized well-defined LDH nanosheets can be readily attained by synthesizing large crystals LDH-carbonate via so-called homogeneous precipitation subsequent exfoliation nitrate form formamide. Some general...
Abstract Lithium–sulfur batteries (LSBs) are regarded as a new kind of energy storage device due to their remarkable theoretical density. However, some issues, such the low conductivity and large volume variation sulfur, well formation polysulfides during cycling, yet be addressed before LSBs can become an actual reality. Here, presented is comprehensive overview illustrating techniques capable mitigating these undesirable problems together with electrochemical performances associated...
A simple and scalable method is developed to synthesize TiO(2)/graphene nanostructured composites as high-performance anode materials for Li-ion batteries using hydroxyl titanium oxalate (HTO) the intermediate TiO(2). With assistance of a surfactant, amorphous HTO can condense flower-like nanostructure on graphene oxide (GO) sheets. By calcination, HTO/GO nanocomposite be converted with well preserved nanostructure. In composite, TiO(2) nanoparticles an ultrasmall size several nanometers...
High yield production of graphene oxide and sheets with an ultralarge size (up to ∼200 μm) was realized using a modified solution-phase method.
This review concerning transition-metal-oxides-based electrocatalysts for the oxygen reduction reaction in metal–air batteries will encourage enthusiasm of researchers to develop efficient catalysts power sources used electric vehicles.
Abstract Li‐rich layered oxides (LLOs) have been considered as the most promising cathode materials for achieving high energy density Li‐ion batteries. However, they suffer from continuous voltage decay during cycling, which seriously shortens lifespan of battery in practical applications. This review comprehensively elaborates and summarizes state‐of‐the‐art research this field. It is started proposed mechanism that refers to phase transition, microscopic defects, oxygen redox or release....
In this paper, we describe a general process for the synthesis and delamination of family highly crystalline Al-based transition-metal-bearing layered double hydroxides (LDHs). Large-sized monodispersed hexagonal platelike particles binary-component M(II)-Al-CO3 ternary-component M(II)-M'(II)-Al-CO3 LDHs (M(II) M'(II) = Fe, Co, Ni, or Zn) were prepared at first by urea method under optimized conditions. These CO32--LDHs converted into other monovalent-anion-containing means salt-acid...
A 3D porous architecture of Si/graphene nanocomposite has been rationally designed and constructed through a series controlled chemical processes. In contrast to random mixture Si nanoparticles graphene nanosheets, the nanoarchitectured composite superior electrochemical stability because are firmly riveted on nanosheets thin SiOx layer. The network enhances electrical conductivity, improves rate performance, demonstrating capability over 2D nanostructure. This can deliver reversible...
Abstract A facile approach to fabricate graphene oxide (GO) reinforced epoxy resin nanocomposites was developed by transferring GO from water acetone. Three-point bending test, impact dynamic mechanical analysis (DMA) and thermogravimetric (TGA) were used investigate the thermal properties of nanocomposites. The results showed that significant improvements in flexural strength, modulus, storage modulus achieved when incorporating ∼1 wt% oxide. TGA indicated introduction has not demonstrated...
Abstract The volume expansion and dendrite growth of metallic Li anode during charge/discharge processes hinder its practical application in energy storage. Seeking an appropriate host for distributing bulk a 3D manner is effective way to solve these problems. Here, novel porous graphene scaffold with cellular chambers incorporating metal presented. Using such unique host, ultrathin layers 3 µm thickness are anchored on form microstructures, which provides much more reaction sites ions...
A flexible composite film composed of carbon nanotubes (CNTs) and sulfur as the cathode for lithium–sulfur (Li–S) batteries is prepared by coating an ultrathin nanolayer on a preprepared CNT through simple two-step heating process. The sulfur–CNT with areal density ∼5 mg cm–2 has high content 65 wt % tough enough to be directly employed in Li–S cells without binders, conductive additives, current collectors. porous film-like matrices enormously improve electrical conductivity offer 3D...
Rechargeable aqueous metal-ion batteries made from non-flammable and low-cost materials offer promising opportunities in large-scale utility grid applications, yet low voltage energy output, as well limited cycle life remain critical drawbacks their electrochemical operation. Here we develop a series of high-voltage based on 'M(+)/N(+)-dual shuttles' to overcome these drawbacks. They utilize open-framework indium hexacyanoferrates cathode materials, TiP2O7 NaTi2(PO4)3 anode respectively. All...
The cyclability of lithium-ion batteries (LIBs) is often affected by the components solid electrolyte interphase (SEI) layer which generated from electrochemical decomposition electrolyte.
Rechargeable Li-ion batteries with higher energy density are in urgent demand to address the global challenge of storage. In comparison anode materials, relatively low capacity cathode oxides, which exhibit classical cationic redox activity, has become one major bottlenecks reach density. Recently, anionic such as oxygen reaction, been discovered electrochemical processes, providing extra reversible for certain transition-metal oxides. Consequently, a more complete understanding and precise...
Owing to a large diamagnetism, graphene flakes can respond and be aligned magnetic field like ferromagnetic material. Aligned exhibit emergent properties approaching single-layer graphene. Anisotropic optical also give rise writing board using suspension bar magnet as pen. This simple alignment technique opens up enormous applications of As service our authors readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed may re-organized for...
Electrode films fabricated with lithium-rich layered 0.3Li2MnO3–0.7LiNi5/21Co5/21Mn11/21O2 cathode materials have been successfully modified ZnO coatings via a reactive magnetron sputtering (RMS) process for the first time. The morphology and chemical composition of coating on electrodes in deep investigated by transmission electron microscopy (TEM), energy dispersive spectrometry (EDS), X-ray photoelectron spectroscopy (XPS) characterizations. results clearly demonstrate that film are...