A5100613436- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Electrocatalysts for Energy Conversion
- Conducting polymers and applications
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Organic Electronics and Photovoltaics
- Transition Metal Oxide Nanomaterials
- Graphene research and applications
- Catalytic Processes in Materials Science
- Nanomaterials for catalytic reactions
- Advanced Photocatalysis Techniques
- Organic Light-Emitting Diodes Research
- Copper-based nanomaterials and applications
- Perovskite Materials and Applications
- Molecular Junctions and Nanostructures
- TiO2 Photocatalysis and Solar Cells
- High-Voltage Power Transmission Systems
- Smart Grid and Power Systems
- Quantum Dots Synthesis And Properties
- Thermal properties of materials
- Stress Responses and Cortisol
- Advanced Sensor and Energy Harvesting Materials
University of Science and Technology Beijing
2022-2025
Sun Yat-sen University
2023-2024
Southwest University
2020-2024
Beijing University of Technology
2023-2024
Chinese Academy of Sciences
2009-2024
Changchun Institute of Applied Chemistry
2009-2024
Chongqing University of Science and Technology
2023-2024
China Electric Power Research Institute
2021-2024
North China Electric Power University
2023-2024
Hefei University of Technology
2024
Abstract An aerosol‐spray‐assisted approach (ASAA) is proposed and confirmed as a precisely controllable continuous method to fabricate amorphous mixed metal oxides for electrochemical water splitting. The proportion of elements can be accurately controlled within (5±5) %. products sustainably obtained, which highly suitable industrial applications. ASAA was used show that Fe 6 Ni 10 O x the best catalyst among investigated Fe‐Ni‐O series with an overpotential low 0.286 V (10 mA cm −2 )...
The long-standing issues of low intrinsic electronic conductivity, slow lithium-ion diffusion and irreversible phase transitions on deep discharge prevent the high specific capacity/energy (443 mAh g−1 1,550 Wh kg−1) vanadium pentoxide from being used as cathode material in practical battery applications. Here we develop a method to incorporate graphene sheets into nanoribbons via sol–gel process. resulting graphene-modified nanostructured hybrids contain only 2 wt. % graphene, yet exhibits...
A series of modified carbon nitride with a controlled amount vacancies is prepared successfully by simple acid treatment, and the performances corresponding Pd/CN-X catalysts in phenol-selective hydrogenation are investigated. It found that Pd/CN-30 catalyst exhibits highest activity, while Pd/CN-60 shows very low activity. The characterization powder X-ray diffraction, transmission electron microscopy, photoelectron spectra, temperature-programmed desorption phenol cyclohexanone, adsorption...
A simple method to fabricate graphene-encapsulated pyrolyzed polyaniline-grafted Si nanoparticles has been developed. Instead of using with a native oxide layer, HF-treated were employed in this work. The uniqueness is that, first, PANI layer over the was formed via surface-initiated polymerization aniline on surface aniline-functionalized nanoparticles; then, PANI-grafted wrapped by GO sheets π-π interaction and electrostatic attraction between PANI. Finally, pyrolyzed, tightly binds...
The oxygen evolution reaction (OER) plays a vital role in renewable energy technologies, including fuel cells, metal-air batteries, and water splitting; however, the currently available catalysts still suffer from unsatisfactory performance due to sluggish OER kinetics. Herein, we developed new catalyst with high efficiency which dynamic exchange mechanism of active Fe sites was regulated by crystal plane engineering pore structure design. High-density nanoholes were created on cobalt...
The interface between the ionomer and catalyst can be engineered by tuning interactions through surface functionalization of carbon supports catalysts. Attractive enhance performance, while repelling hinder performance.
Abstract Realization of higher-order multistates with mutual interstate switching in ferroelectric materials is a perpetual drive for high-density storage devices and beyond-Moore technologies. Here we demonstrate experimentally that antiferroelectric van der Waals CuInP 2 S 6 films can be controllably stabilized into double, quadruple, sextuple polarization states, system harboring order six also reversibly tunable four or two. Furthermore, given order, achieved via moderate electric field...
The failure mechanism of LiFePO4 cells in over-discharge conditions has been systematically studied using commercial A123 18650 at a 1.0 C rate and different – from 5% to 20% (DOD = 105% 120%). SEM/EDAX, high-energy synchrotron XRD (HESXRD), cyclic voltammetry (CV) were used characterize the morphology, structure, electrode potentials cell components both situ ex situ. behaviors experiencing degrees found be similar, process was analyzed as representative example. Cu electrochemical 1.2 M...
The failure mechanism of LiFePO4 cells during overcharge conditions has been systematically studied using commercial A123 18650 at a 1C rate and different – from 5% to 20% (SOC = 105% 120%). SEM/EDX, high-energy synchrotron XRD (HESXRD), cyclic voltammetry (CV) were used characterize the morphology, structure, electrode potentials cell components both in situ ex situ. behaviors for experiencing degrees overcharges found be similar, 10% process was analyzed as representative example. Fe redox...
Ambulance personnel who witness trauma experienced by patients have been reported to experience positive changes, known as vicarious posttraumatic growth (VPTG). We examined VPTG and its relationship with social support resilience among ambulance personnel.The sample (n=227) was recruited from six emergency centers in China. The measures included the Posttraumatic Growth Inventory (PTGI), Social Support Rating Scale (SSRS), 10-item Connor-Davidson Resilience (CD-RISC-10). Structure Equation...
Abstract Herein we report a gentle seedless and surfactant‐free method for the preparation of clean‐surface porous platinum nanoparticles. In terms electrocatalytic CH 3 OH oxidation, exhibited better performance than nanoparticles commercial Pt/C catalyst. The nanostructures 2.26‐fold higher mass activity 2.8‐fold greater specific More importantly, three typical surfactants, cetyltrimethylammonium bromide/chloride (CTAB/C), poly(vinylpyrrolidone), sodium dodecyl sulfate, were chosen to...
Ni<sub>3</sub>S<sub>2</sub>–Cu<sub>1.8</sub>S nanosheets were fabricated by a one-step co-sulfurization with <italic>in situ</italic> ion exchange, demonstrating potential applications in hybrid supercapacitors.
Abstract An aerosol‐spray‐assisted approach (ASAA) is proposed and confirmed as a precisely controllable continuous method to fabricate amorphous mixed metal oxides for electrochemical water splitting. The proportion of elements can be accurately controlled within (5±5) %. products sustainably obtained, which highly suitable industrial applications. ASAA was used show that Fe 6 Ni 10 O x the best catalyst among investigated Fe‐Ni‐O series with an overpotential low 0.286 V (10 mA cm −2 )...
Electrochemical impedance spectroscopy (EIS) was employed to investigate the failure phenomena of commercial 18650 LiFePO4-based Li-ion batteries at different states charge (SOCs) in overcharge conditions. The change voltage profile, discharge capacity, acceptance, temperature, and were characterized analyzed during cycles. Results show that increases solid electrolyte interphase (SEI)/cathode (CEI) resistance, transfer Warburg coefficient are main parameter changes cycles, indicating...
Abstract Electrochemical energy storage has been regarded as one of the most promising strategies for next‐generation consumption. To meet increasing demands urban electric vehicles, development green and efficient charging technologies by exploitation solar should be considered outdoor in future. Herein, a light‐sensitive material (copper foam‐supported copper oxide/nickel oxides nanosheets arrays, namely CF@CuO x @NiCuO NAs) with hierarchical nanostructures to promote electrochemical...
We have performed operando synchrotron high-energy X-ray diffraction (XRD) to obtain nonintrusive, real-time monitoring of the dynamic chemical and structural changes in commercial 18650 LiFePO4/C cells under realistic cycling conditions. The results indicate a nonequilibrium lithium insertion extraction LiFePO4 cathode, with neither phase nor FePO4 maintaining static composition during insertion/extraction. On basis our observations, we propose that cathode simultaneously experiences both...