A5071505699- Energetic Materials and Combustion
- Thermal and Kinetic Analysis
- Crystallography and molecular interactions
- Transition Metal Oxide Nanomaterials
- Advanced Battery Materials and Technologies
- High-pressure geophysics and materials
- Hydrocarbon exploration and reservoir analysis
- Advancements in Battery Materials
- Coal Properties and Utilization
- Thermal Expansion and Ionic Conductivity
- Polymer crystallization and properties
- Supercapacitor Materials and Fabrication
- Nuclear Physics and Applications
- Boron and Carbon Nanomaterials Research
- Electrocatalysts for Energy Conversion
- NMR spectroscopy and applications
- Magnesium Oxide Properties and Applications
- Advanced battery technologies research
- Polymer composites and self-healing
- Atmospheric and Environmental Gas Dynamics
- Copper-based nanomaterials and applications
- Extraction and Separation Processes
- Polymer Nanocomposites and Properties
- Ion-surface interactions and analysis
- Diamond and Carbon-based Materials Research
China Academy of Engineering Physics
2014-2024
University of Science and Technology of China
2008-2013
Hefei National Center for Physical Sciences at Nanoscale
2008-2013
Sodium superionic conductors are keys to develop high safety and low cost all-solid-state sodium batteries. Among developed ionic conductors, antiperovskite-type have attracted vast interest due their structural tolerance good formability. Herein, we successfully synthesize Na3OBH4 with cubic antiperovskite structure by solid-state reaction from Na2O NaBH4. exhibits conductivity of 4.4 × 10–3 S cm–1 at room temperature (1.1 10–2 328 K) activation energy 0.25 eV. The is 4 orders magnitude...
We first demonstrate the rational design and fabrication of novel atomically thick Co3O4 nanosheets (ATCNs) with a specific facet exposed by topochemical transformation from layered intermediate precursors to optimize energy storage. The eminently enhanced lithium storage performance can be attributed not only synergistic advantages inorganic graphene analogues but also increase Co2+ atoms charge redistribution for ATCNs, which were revealed means synchrotron radiation X-ray absorption...
With the rapid development of portable electronics, all-solid-state thin-film supercapacitors (ASSTFSs) have attracted tremendous attention and been considered as competitive candidates owing to their ultraflexibility high safety. The major challenge in ASSTFSs is low capacity energy density due lack proper electrode materials with conductivity surface area. In this study, we develop a nanocomposite combined pseudocapacitive vanadium pentoxide highly conductive graphene ultrathin thickness...
Inorganic graphene analogues (IGAs) are currently in the spotlight of nanotechnology with aim achieving superior energy storage performance. However, cumbersome, expensive and time-consuming synthetic routes have definitely hindered further study these species, thus development facile, low-cost ultra-rapid approaches to species is urgently needed has met limited success so far. Herein, we put forward an ultra-rapid, facile microwave-assisted strategy achieve this goal without exfoliation for...
Compared with non-aqueous lithium-ion batteries, aqueous batteries (ALIBs) have been widely regarded as a strategy to resolve the safety problems and reduce manufacturing cost of lithium ion batteries. But major challenge in ALIBs is low capacity, especially at high current densities, due lack suitable anode materials utilization efficiency theoretical capacity fast diffusion. Based on calculation Li+ diffusion coefficient (DLi+), Li0.3V2O5 therefore first chosen novel material for because...
Abstract Despite the promising applications of copper selenide nanoparticles, an in‐depth elucidation inherent properties tetragonal Cu 2 Se (β‐Cu Se) has not been performed because lack a facile synthesis on nanoscale and energy‐intensive strategy is usually employed. In this work, wet‐chemical strategy, employing HCOOH as reducing agent, developed to access single‐crystalline metastable β‐Cu hyperbranched architectures for first time. The process avoids hazardous chemistry high...
Lithium-ion batteries have long been considered as the most promising energy storage technology for hybrid, plug-in hybrid and electric vehicle applications. However, their large-scale applications are still limited by low electrical conductivity, easy agglomeration inferior cycling stability of active materials. Herein, sandwich-like carbon-anchored ultrathin nanosheets put forward first time an excellent platform to achieve ultrafast lithium kinetics superior stability. Taking synthetic...
Although about 200,000 metric tons of gamma-MnO(2) are used annually worldwide for industrial applications, the structure is still known to possess a highly ambiguous crystal lattice. To better understand atomic structure, hexagon-based nanoarchitectures were successfully synthesized and elucidate its internal present work. The structural analysis results, obtained from nanoarchitectures, clearly show coexistence akhtenskite (epsilon-MnO(2)), pyrolusite (beta-MnO(2)), ramsdellite in...
The aqueous-based lithium ion batteries have attracted considerable interest because of their high safety, low cost and environmental friendliness for rechargeable energy storage. Herein, a new anode material, uniform CuV2O5 nanobelts, was prepared through facile hydrothermal route the first time. detailed structures chemical state as-obtained were investigated formation mechanism proposed. nanobelts show electrical conductivity, which could improve Li-ion insertion/extraction kinetics. ex...
Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine-based plastic-bonded explosive (HMX-based PBX) is one of the most important solid energetic materials. The properties HMX-based PBX are significantly affected by defects, which were reported recently to be generated during postheating storage. However, related mechanism not well understood. In study, with in situ X-ray diffraction and small-angle neutron scattering, we explored phase retransform void evolution previously heated HMX particles...
The microstructure of compression molded Estane 5703 films exposed to 11%, 45%, and 80% relative humidity 70 °C for 1 2 months has been studied by small-angle neutron scattering (SANS), Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), differential scanning calorimetry (DSC). Scattering data indicated increase the interdomain distance domain size with a higher longer aging time. GPC showed progressive shortening polyurethane chains increasing caused drop...
Ultrafine explosives show high safety and reliable initiation have been widely used in aerospace, military, industrial systems. The outstanding performance of ultrafine is largely given by the unique void defects according to simulation results. However, structures effects internal nano-voids explosive particles rarely investigated experimentally. In this work, contrast-variation small angle X-ray scattering was verified reliably measure 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105)...
The sample size or particle of shale plays a significant role in the characterization pores by various techniques. To systematically investigate influence on pore characteristics and optimum for different methods, we conducted complementary tests two overmature marine samples with sizes. included small-angle neutron scattering (SANS), gas (N2, CO2, H2O) adsorption, mercury injection capillary pressure (MICP), field emission-scanning electron microscopy (FE-SEM) imaging. results indicate that...