A5006831407- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- Structural Load-Bearing Analysis
- Concrete and Cement Materials Research
- Concrete Corrosion and Durability
- Structural Behavior of Reinforced Concrete
- Advanced Battery Technologies Research
- Structural Health Monitoring Techniques
- Conducting polymers and applications
- Probabilistic and Robust Engineering Design
- Vibration and Dynamic Analysis
- Smart Materials for Construction
- Concrete Properties and Behavior
- Advanced battery technologies research
- Extraction and Separation Processes
- Copper-based nanomaterials and applications
- Advanced Photocatalysis Techniques
- Geotechnical Engineering and Underground Structures
- Semiconductor materials and devices
- Structural Engineering and Vibration Analysis
- Hydrogen Storage and Materials
- ZnO doping and properties
- Graphene and Nanomaterials Applications
- Seismic Performance and Analysis
Guangxi University
2015-2025
Wannan Medical College
2024-2025
Shenzhen Children's Hospital
2025
Institute of High Energy Physics
2021-2024
Chinese Academy of Sciences
2020-2024
China Spallation Neutron Source
2024
University of Chinese Academy of Sciences
2023-2024
Georgia Institute of Technology
2017-2023
Institute of Physics
2020-2023
Lanzhou Jiaotong University
2023
Highly blue-luminescent nitrogen-doped graphene quantum dots (N-GQDs) are obtained by hydrothermal treatment of oxide in the presence ammonia. The yield N-GQDs is about 8.7% weight. A high maximum 24.6% at an excitation wavelength 340 nm achieved. They applied for bioimaging HeLa cells, and showed bright luminescence excellent biocompatibility.
The demand for a new generation of flexible, portable, and high‐capacity power sources increases rapidly with the development advanced wearable electronic devices. Here we report simple process large‐scale fabrication self‐standing composite film electrodes composed NiCo 2 O 4 @carbon nanotube (CNT) supercapacitors. Among all prepared, one fired in air displays best electrochemical behavior, achieving specific capacitance 1,590 F g −1 at 0.5 A while maintaining excellent stability. @CNT/CNT...
Abstract The development of high‐voltage LiCoO 2 is essential for achieving lithium‐ion batteries with high volumetric energy density, however, it faces a great deal challenges owing to the materials, structure and interfacial instability issues. In this work, strategy developed, through heat annealing precoated surface layer in situ form high‐voltage‐stable coating layer, which demonstrated be highly effective improve performance . It discovered that reacts Li 1.5 Al 0.5 Ti (PO 4 ) 3 (LATP)...
While sodium-ion batteries (SIBs) hold great promise for large-scale electric energy storage and low speed vehicles, the poor capacity retention of cathode is one bottlenecks in development SIBs. Following a strategy using lithium doping transition-metal layer to stabilize desodiated structure, we have designed successfully synthesized novel layered oxide P2–Na0.66Li0.18Fe0.12Mn0.7O2, which demonstrated high 190 mAh g–1 remarkably ∼87% after 80 cycles within wide voltage range 1.5–4.5 V. The...
Abstract Photocatalysis induced by light absorption of metal nanoparticles (NPs) has emerged as a promising strategy for exploiting efficient visible-light-responsive composites solar-energy conversion. In this review, we first introduce the NPs and mechanisms proposed in metal-induced photocatalysis (MIP). Then, its applications water splitting, artificial photosynthesis inert molecular activation are summarized. To address challenge low efficiency field, strategies promoting catalytic...
Abstract Sodium‐ion batteries have attracted extensive interest as a promising solution for large‐scale electrochemical energy storage, owing to their low cost, materials abundance, good reversibility, and decent density. For sodium‐ion achieve comparable performance current lithium‐ion batteries, significant improvements are still required in cathode, anode, electrolyte materials. Understanding the functioning degradation mechanisms of is essential. Computational techniques been widely...
Due to the growing demands of rare earth elements (REEs) and vulnerability REEs potential supply disruption, there have been increasing interests in recovering from waste streams such as coal fly ash (CFA). Meanwhile, CFA a large industrial stream United States (U.S.) poses significant environmental economic burdens. Recovery is promising solution REE scarcity issue also brings opportunities for management. This study demonstrates green system recovery Class F C that consists three modules:...
A composite electrode composed of Fe<sub>3</sub>O<sub>4</sub> microspheres encapsulated in hollow graphene shells exhibits high electrochemical performance when used as an anode a lithium ion battery.
<italic>In operando</italic> Raman spectroscopy was used to monitor the origin of pseudocapacitive behavior Mn<sub>3</sub>O<sub>4</sub> electrodes during charging/discharging processes.
Thumb-ring-like α-Fe2O3 and reduced graphene oxide (rGO) composites, α-Fe2O3/rGO, have been synthesized via a simple hydrothermal method accompanied by surface potential tuning. The obtained samples exhibit good electrochemical performance with wide negative window of −1–0.2 V vs Ag/AgCl when serving as supercapacitor electrodes. There is only about 10% decay after 11 000 cycles galvanostatic charge–discharge (GCD) test. After few tens cycling activity, the capacitance achieved stable value...
Self-standing and flexible films worked as pseudocapacitor electrodes have been fabricated via a simple vacuum-filtration procedure to stack δ-MnO2@carbon nanotubes (CNTs) composite layer pure CNT one by with layers ended. The lightweight CNTs served both current collector supporter, while the MnO2@CNTs birnessite-type MnO2 active made main contribution capacitance. At low discharge of 0.2 A g–1, layered displayed high areal capacitance 0.293 F cm–2 mass 1.97 mg (specific 149 g–1) thickness...
Battery safety concerns are becoming more and prominent with the increasing demands of lithium-ion batteries (LIBs) higher energy density. The greatest threat to battery derives from easy release oxygen high-capacity layered oxide cathodes at highly delithiated states subsequent exothermic reactions reductive agents in batteries. Herein, it is demonstrated that solid electrolyte Li6.5 La3 Zr1.5 Ta0.5 O12 (LLZTO) can supply lithium ions re-lithiate charged LiCoO2 elevated temperatures. Such a...
The ever-growing demand for portable electronic devices has put forward higher requirements on the energy density of layered LiCoO2 (LCO). unstable surface structure and side reactions with electrolytes at high voltages (>4.5 V) however hinder its practical applications. Here, considering high-voltage stability three-dimensional lithium-ion transport channel Li-containing spinel (M = Ni Co) LiMxMn2-xO4, we design a conformal integral LiNixCoyMn2-x-yO4 coating LCO via sol-gel method. accurate...
A cost-effective, scalable ball milling process is employed to synthesize the InGeSiP
High-entropy phosphides are first synthesized, achieving much faster charge transfer and greater anti-pulverization capability than the parent phases owing to high configurational entropy.
Abstract Quantifying the aging mechanisms and their evolution patterns during battery is crucial for enabling renewable energy. Here, key factors are monitored quantified affecting processes of LiFePO 4 //graphite by a combination mass spectrometry titration (MST), nuclear magnetic resonance (NMR), cryogenic transmission electron microscopy (cryo‐TEM), neutron imaging techniques. Electrochemical analysis reveals loss active lithium inventory drives as temperature increases. It shown that...
Carbonaceous nanospheres with silver nanoparticles (CNs-Ag) composites were prepared by a facile and low cost method. Silver successfully loaded onto the surface of carbonaceous nanospheres, which examined X-ray diffraction, UV-vis spectra, transmission electron microscopy, energy dispersive spectrometry photoelectron spectroscopy. The antibacterial properties CNs-Ag investigated kinetics bacterial growth disk-diffusion test. cytotoxicity was determined MTT assay. results suggest that...
The structure and capacitive properties of microtube bundle carbons (MTBCs) from carbonization paulownia sawdust (PS) followed by NaOH activation were investigated. Morphology analyses indicated that MTBCs had abundant micropores mesopores with a high specific surface area about 1900 m(2) g(-1). Cyclic voltammetry, galvanostatic charge/discharge, electrochemical impedance spectroscopy studies demonstrated the excellent charge storage, transfer capability, low MTBCs. capacitance MTBCs-4 was...