A5047664666- Space Satellite Systems and Control
- Laser-induced spectroscopy and plasma
- Gas Sensing Nanomaterials and Sensors
- Plasma Diagnostics and Applications
- Supercapacitor Materials and Fabrication
- Nanoplatforms for cancer theranostics
- ZnO doping and properties
- Energetic Materials and Combustion
- Electromagnetic wave absorption materials
- Advancements in Battery Materials
- Analytical Chemistry and Sensors
- Advanced Antenna and Metasurface Technologies
- Rocket and propulsion systems research
- Photochemistry and Electron Transfer Studies
- Free Radicals and Antioxidants
- Gold and Silver Nanoparticles Synthesis and Applications
- Astro and Planetary Science
- Extracellular vesicles in disease
- Combustion and Detonation Processes
- Solar-Powered Water Purification Methods
- Quantum Dots Synthesis And Properties
- Electrochemical sensors and biosensors
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Advanced biosensing and bioanalysis techniques
Space Engineering University
2022-2025
Harbin Institute of Technology
2016-2020
Wuhan Engineering Science & Technology Institute
2016-2020
Harbin University
2016-2019
Shenyang Ligong University
2012-2013
Nanyang Institute of Technology
2012
Abstract Phase transition from WO 3 to sub‐stoichiometric 2.9 by a facile method has varied the typical semiconductor be quasi‐metallic with narrowed band gap and shifted Femi energy conduction band, while maintaining high crystallinity. The resultant nanorods possess total absorption capacity (ca. 90.6 %) over whole solar spectrum as well significant photothermal conversion capability, affording efficiency around 86.9 % water evaporation of about 81 upon light irradiation. Meanwhile,...
Abstract Low‐cost activated carbons with high capacitive properties remain desirable for supercapacitor applications. Herein, a three‐dimensional scaffolding framework of porous carbon nanosheets (PCNSs) has been produced from typical biowaste, namely, ground cherry calyces, the specific composition and natural structures which have contributed to PCNSs having very large surface area 1612 m 2 g −1 , hierarchical pore size distribution, turbostratic structure degree graphitization, about 10 %...
Novel CuO nanoparticle-capped ZnO nanorods have been produced using a pulsed laser deposition (PLD) method. These are shown to grow by CuO-nanoparticle-assisted vapor-solid-solid (V-S-S) mechanism. The photoluminescence (PL) accompanying ultraviolet illumination of these capped nanorod samples shows large variations upon exposure trace quantities H2S gas. present data suggest that both the Cu-doped stem and capping nanoparticle contribute optical sensing with CuO-ZnO nanorods. This study...
High-performance photothermal agents have become particularly fascinating, however, the influence of crystallization nature on their performance remains elusive.
Abstract Transition metal selenides (TMSs) with excellent electrochemical activity and high intrinsic electrical conductivity have attracted considerable attention owing to their potential use in energy storage devices. However, the low densities of reported TMSs, which originate from small active surface area poor electrolyte ion mobility, substantially restrict application potential. In this work, porous ultrathin nickel selenide nanosheet networks (NiSe NNs) on foam are fabricated by...
The paper presents a simulation physical model of laser thruster under vacuum back pressure environment. Through the finite difference method and Direct Simulation Monte Carlo (DSMC) calculation method, based on actual structure working mode, changes flow field distribution in plume different conditions are obtained. influence density velocity was verified through experiments, evolution process during ablation polyamide glycidyl ether (GAP) solid target material analyzed detail. results good...
The vigorous development of micro–nano satellites urgently requires satellite-borne propulsion systems as support. Pulsed laser ablation micro-propulsion can meet these high demands. Ammonium dinitramide (ADN), a green monopropellant, serve the working substance for ablation. This work investigated performance liquid propellants composed ADN and water with different mass fractions, aiming to clarify enhancement effect chemical energy. Through single-pulse impulse measurement, results show...
Propellants play a crucial role in the propulsion systems of aerospace vehicles, and their combustion characteristics are susceptible to external environmental conditions. This study systematically investigated impact various initial conditions on process ADN-based propellant, including products, equilibrium pressure, adiabatic temperature, ignition delay time. The results indicate that primary products propellant include N2O, N2, CO2, OH, others. exhibits distinct two-stage under low...
Abstract Phase transition from WO 3 to sub‐stoichiometric 2.9 by a facile method has varied the typical semiconductor be quasi‐metallic with narrowed band gap and shifted Femi energy conduction band, while maintaining high crystallinity. The resultant nanorods possess total absorption capacity (ca. 90.6 %) over whole solar spectrum as well significant photothermal conversion capability, affording efficiency around 86.9 % water evaporation of about 81 upon light irradiation. Meanwhile,...
Pr<sup>3+</sup>-Doped (K<sub>0.5</sub>Na<sub>0.5</sub>)NbO<sub>3</sub> has been demonstrated to be an excellent photoluminescence-based oxygen sensing agent, showing ultra-high response of up 300%.
Enhancing photosynthesis is a pivotal strategy for achieving sustainable plant production. Blue and red light facilitate growth since these wavelengths are readily absorbed by chlorophyll pigments power crucial photosynthetic processes. In this investigation, double conversion films were prepared incorporating biomass-derived carbon dots into polyvinyl alcohol matrix (CDs@PVAs). The study conclusively demonstrated that CDs@PVAs can convert ultraviolet green from sunlight blue light. Using...
Abstract Thermo‐chemotherapy combining photothermal therapy (PTT) with chemotherapy has become a potent approach for antitumor treatment. In this study, multifunctional drug‐delivery nanoplatform based on polyethylene glycol (PEG)‐modified mesoporous silica‐coated bismuth selenide nanoparticles (referred to as Bi 2 Se 3 @mSiO ‐PEG NPs) is developed synergistic PTT and infrared thermal (IRT) imaging of cancer cells. The product shows no/low cytotoxicity, strong near‐infrared (NIR) optical...
High fluorescence enhancement has been realized by optimizing the evanescent field of ZnO nanorods.
In the compound MnAs0.97P0.03, prepared by mechanical milling, a large microstrain of 0.68%, calculated quantitative x-ray diffraction analysis, induces recoverable helimagnetic state at low temperatures and suppresses temperature/field-induced orthorhombic-hexagonal phase transition. This leads to remarkable reduction both thermal magnetic hysteresis Curie temperature, TC. Around helimagnetic-ferromagnetic transition temperature TC, inverse magnetocaloric effect (MCE) with entropy change...
The transmissive mode laser micro-ablation performance of near-infrared (NIR) dye-optimized ammonium dinitramide (ADN)-based liquid propellant was investigated in plasma propulsion using a pulse YAG with 5 ns width and 1064 nm wavelength. Miniature fiber optic spectrometer, differential scanning calorimeter (DSC) high-speed camera were used to study energy deposition, thermal analysis ADN-based propellants the flow field evolution process, respectively. Experimental results indicate that two...
As a new type of green propellant, ammonium dinitramide (ADN)-based energetic propellants have wide application value and development potential in the field space propulsion. This paper delves into intricate impact varying initial temperatures, pressures, propellant component ratios on critical parameters, including temperature, combustion rate, heat release, straight nozzle an ADN-based propellant. The findings indicate that elevation both temperature ADN ratio expedites thermal...
Laser ablation propulsion based on liquid propellants is a type of technology with high specific impulse and good controllability that can be applied to space thrusters, gas metal arc welding, extreme ultraviolet light. However, its basic mechanisms, such as flow evolution thrust formation, have not yet been described in detail. In this study, the laser micro-scale fluid atmosphere was investigated. Flow different energy mass observed using schlieren system. According characteristic...
The present study explores the influence of diverse nozzle geometries on combustion characteristics ADN-based energetic propellants. pressure contour maps reveal a rapid initial increase in average propellants across three different nozzles. Subsequently, tapers off gradually as time elapses. Notably, during crucial period 0–5 μs, straight exhibited most significant surge at 30.2%, substantially outperforming divergent (6.67%) and combined nozzles (15.5%). product variation curves indicate...