A5103006047- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Power System Optimization and Stability
- Power Systems Fault Detection
- Membrane-based Ion Separation Techniques
- Electrospun Nanofibers in Biomedical Applications
- Advancements in Solid Oxide Fuel Cells
- HVDC Systems and Fault Protection
- Advanced Wireless Communication Technologies
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- IoT Networks and Protocols
- Advanced battery technologies research
- Wireless Communication Security Techniques
- Computational Physics and Python Applications
- Biofuel production and bioconversion
- Advanced Sensor and Energy Harvesting Materials
- Magnesium Oxide Properties and Applications
- 2D Materials and Applications
- Electromagnetic Simulation and Numerical Methods
- Advanced biosensing and bioanalysis techniques
- Metal and Thin Film Mechanics
- Numerical methods for differential equations
- Microplastics and Plastic Pollution
- Carbon and Quantum Dots Applications
Jining University
2021-2024
Fujian Normal University
2023-2024
Shanghai Jiao Tong University
2024
Qingdao University of Science and Technology
2022-2023
Beijing University of Chemical Technology
2019-2021
Liaoning Normal University
2020
Queensland University of Technology
2013-2017
Abstract Electrospun nanofibers with superior performance have attracted widespread attention from researchers due to their extensive application in biomedical materials, filtration, catalysis, and so forth. However, the low mechanical properties, such as elongation at breaking strength tensile strength, restrict of many aspects. This article describes recent progress improving properties electrospun nanofibrous membranes. At present, methods increase are mainly based on introduction...
The gas diffusion layer (GDL) is an important component in the proton exchange membrane fuel cell (PEMFC), and main function of GDL to transfer water gas. This paper explores effect gradient hydrophobicity on (PEMFC). design uses two microporous layers (MPL). First, polytetrafluoroethylene (PTFE) : carbon black MPL near side was fixed at 3 7, then content PTFE catalyst (CL) set 2 8 1 9. Second, 8, CL We found that, when = can obtain good performance through hydrophobic treatment. Moreover,...
In this paper, the newly prepared gas diffusion layer (GDL) is investigated and characterized. The GDL mainly includes carbon paper microporous (MPL). By analysis of physical electrochemical test results, it found that performance by composite black obviously improved compared with conventional single black. This new combines characteristics two original materials has a more reasonable pore structure, which can meet good transmission reaction liquid water. Furthermore, research shows size...
This second part of a two-paper series gives an overview key insights and control implications arising from the wave characteristics power system transient stability. These insights, which are unique to traveling interpretation, obtained through time-domain analysis artificial real test systems: "critical region for stressed link near end longitudinal system," "dispersed in path," "placement controllers considering structure load distribution "localized stability enhancement." Good...
Based on the DFT calculations, two-dimensional (2D) R-graphyne has been demonstrated to have high stability and good conductivity, which can be conducive relevant electrocatalytic activity of material. Different from poor graphene, R-graphyne, is completely composed anti-aromatic structural units, exhibit certain HER catalytic activity. In addition, doping TM atoms in Group VIIIB considered an effective strategy enhance R-graphyne. Particularly, Fe@R-graphyne, Os@R-graphyne, Rh@R-graphyne...
Electromechanical wave propagation is present in power systems as a transient spatial delay of generator rotor angle variations when disturbance occurs. The control and mitigation the this phenomenon, which spreads out to different locations at comparably slow speed, important for enhancing system stability, shown part two two-paper series. In an idealized consisting infinitesimal generators line impedances, traveling can exist infinite frequencies, its speed be derived from equation...
Abstract In this paper, a multi‐layer gas diffusion layer (GDL) is designed. The GDL consists of single carbon paper backing and dual microporous layers (MPLs). Moreover, the effects thickness hydrophobicity double MPL on performance proton exchange membrane fuel cells are investigated. From test results water contact angle, conductivity, pore size distribution, polarization curve, it found that adjustment increases number 0.5 to 7 μm 20 100 pores in GDL, which more conducive discharge....
In a large interconnected power system, disturbances initiated by fault or other events cause acceleration in the generator rotors with respect to their synchronous reference frame. This of can be described two different dynamic phenomena, as shown existing literature. One phenomena is simultaneous and electromechanical wave propagation, which characterized travelling waves terms equation. paper demonstrates that depending on structure exhibited response will dominated one phenomenon mixture...
In order to improve the performance of polymer fuel cells in low-humidity environments. This paper investigates anode gas diffusion layer (GDL), uses carbon black and polytetrafluoroethylene (PTFE) as conductive hydrophobic materials, NH 4 HCO 3 pore-forming agent. Anode GDL with dual MPL structure was prepared by spraying method, has gradient hydrophobicity pore-sized structure, which greatly ensures high efficiency water transport process. been tested for polarization curves, power...
Constructing relevant transition metal silicides/germanides with planar hypercoordinated Si/Ge can be a new and effective strategy for achieving nonprecious highly efficient HER catalysts.
The properties of the MoS2/Zr coatings can be significantly affected by deposition temperature. In this study, composite were fabricated on cemented carbide surface, utilizing duplex technology at various temperatures. effects temperature mechanical and friction systematically studied. Results exhibited that as increased, adhesion force increased first then decreased, coating thickness micro-hardness gradually increased. Dry sliding tests against a hardened steel ring showed tribological...
For the time being, absolute rotor angle of every generator is changing from to time, so it's less likely improve transient stability by use measurement. Things are no longer after controllers deployed across power system. The frequency system will remain constant, and be kept at aim value given dispatching center most time. After fault happens, can know its position in entire through local PMU (phasor measurement unit) controller then give order turbine valve or electronic braking devices...