A5101802129- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Electronic Packaging and Soldering Technologies
- Metallurgy and Material Forming
- Intermetallics and Advanced Alloy Properties
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Advanced Nanomaterials in Catalysis
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Conducting polymers and applications
- Integrated Circuits and Semiconductor Failure Analysis
- Aluminum Alloys Composites Properties
- Magnetic Bearings and Levitation Dynamics
- TiO2 Photocatalysis and Solar Cells
- Magnetic Properties and Applications
- Advanced Battery Technologies Research
- Advanced Battery Materials and Technologies
- Heat transfer and supercritical fluids
- Advanced biosensing and bioanalysis techniques
- Inorganic Chemistry and Materials
- Electric Motor Design and Analysis
- Microstructure and Mechanical Properties of Steels
- High-Velocity Impact and Material Behavior
- Microstructure and mechanical properties
- Smart Grid and Power Systems
Shaanxi Normal University
2020-2022
Chongqing Jiaotong University
2018-2021
The development of multifunctional non-precious transition metal electrocatalysts is technologically significant in hydrogen and oxygen electrochemistry but challenging. Here we exploit interface engineering to construct a novel catalyst Ni3N Co2N that exhibits electrochemical activities alkaline media. catalysts Ni3N/Co2N show superior bifunctional activity for comparable the state-of-the-art Pt catalyst, as well high evolution reaction activity. Furthermore, demonstrate excellent...
Two-dimensional (2D) metal–organic frameworks (MOFs) have become a hot topic recently due to their high surface area, larger number of exposed active sites, and improved conductivity.
Abstract The development of electrocatalysts for oxygen reduction reaction (ORR) is important energy conversion devices, such as fuel cells, and metal‐air batteries. Here, we have developed a confined space strategy to prepare two‐dimensional (2D) leaf‐like nitrogen (N)‐containing porous carbon single‐atom catalyst substrate. ZIF−L materials been in thin silica layer regulate the pyrolysis. obtained Fe single atoms doped N‐containing carbons (Fe SAs/N−C) maintain 2D morphology active sites....
Nano-TiO2 is known as a photocatalyst with high catalytic activity. However, it should be emphasized that the bandgap of nano-TiO2 wide, which limits its photocatalytic efficiency in response to visible light and thus hinders potential application. Improving activity under by strategy heat treatment vacuum was investigated this study. The structure before after were compared analyzed XRD, TEM, HRTEM, XPS UV-Vis-NIR, respectively. results show oxygen vacancies introduced into crystal change...
Purpose The impact strength of solder joint under high strain rate was evaluated by board level test method. However, the shear single bump more convenient and economical than With miniaturization joints, joints were prone to failure thermal shock attention has been paid reliability joint. But Pb-free may be too much Sn-Pb ignored. Design/methodology/approach In this study, between −55°C 125°C conducted on Sn-37Pb bumps in BGA package investigate microstructural evolution growth mechanism...
Abstract The deformation behavior and dynamic recrystallization (DRX) mechanism of lean duplex stainless steel 2101 under hot compression were studied by means optical microscopy electron backscatter diffraction. Hot tests performed at a temperature 1 100 °C strain rate 0.01 s −1 , also 000 30 . flow curves exhibit typical DRX characteristics, the stress increases to peak followed work softening higher strains. When alloy was deformed new ferrite grains formed through distinct occurring in...
With the size of solder joint continues to decrease and continuous development high-power devices, Pb-free joints have experienced rapid significant temperature different in electronic packaging. Sn3.0Ag0.5Cu bumps with three (φ3.7mm, φ4.3mm φ4.7mm) were used conduct traditional thermal shock test, microstructure property investigated. application electromagnetic induced heating cooling circulation system, rapidly heated cooled. The results showed that shear strength had same change tendency...
AbstractsResiduals of antibacterial drugs (ADs) threaten human health and ecological equilibrium, whereas few efficient treatments have been developed. Herein a high-efficiency photocatalytic treatment was reported to eliminate moxifloxacin (MOX) as fourth-generation quinolone, using photocatalyst two-dimensional (2D) g-C 3 N 4 nanosheets (CNNS) that fabricated by ammonium chloride assisted chemical blowing method. Under the irradiation visible light with xenon lamp, CNNS showed high...
Effect of different Ag content on microstructure, internal and external fatigue cracks SAC lead-free solder balls (Sn0.7Cu, SAC0307, SAC105) under the rapid thermal was studied. The result shown that surface with three kinds silver were found after similar cycles. With increase cycles, became wider deeper stress. number crack largest SAC105 ball grew up fastest. recrystallization grain directional growth preferentially occurred at bottom heat flow, inhomogeneity microstructure coarsening...
Considerable vibration and acoustic noise limit the further application of Switched Reluctance Machine (SRM) due to its structural characteristics working principle. An improved SRM model with double auxiliary slots (DAS) was proposed, in which direction magnetic line force adjusted, radial density air gap reduced by changing local tooth profiles stator rotor. The effects initial rotor position turn‐on angle turn‐off on Electromagnetic Force (EMF) maximum torque were investigated. results...