A5066811333- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced materials and composites
- Advanced ceramic materials synthesis
- Chemical Synthesis and Characterization
- Advanced battery technologies research
- Metal and Thin Film Mechanics
- Intermetallics and Advanced Alloy Properties
- Supercapacitor Materials and Fabrication
Fudan University
2024
Sichuan University
2022
Abstract Hard carbon (HC) has been widely regarded as the most promising anode material for sodium‐ion batteries (SIBs) due to its decent capacity and low cost. However, poor initial Coulombic efficiency (ICE) of HC seriously hinders practical application in SIBs. Herein, pyridinic N‐doped hard polyhedra with easily accessible carbonyl groups situ coupled nanotubes are rationally synthesized via a facile pretreated zeolitic imidazolate framework (ZIFs)‐carbonization strategy. The...
Abstract The practical implementation of lithium–sulfur batteries is severely hindered by the rapid capacity fading due to solubility intermediate lithium polysulfides (LiPSs) and sluggish redox kinetics. Herein, high‐entropy metal nitride nanocrystals (HEMN) embedded within nitrogen‐doped concave porous carbon (N‐CPC) polyhedra are rationally designed as a sulfur host via facile zeolitic imidazolate framework (ZIF)‐driven adsorption‐nitridation process toward this challenge. configuration...
The sluggish sulfur redox kinetics and severe polysulfide shuttle effect seriously restrict the cycling stability lower utilization of lithium-sulfur (Li-S) batteries. Efficient catalytic conversion polysulfides is deemed a crucial strategy to address these issues, but still suffers from an unclear electronic structure-activity relationship limited catalysis performance. Herein, entropy engineering-induced state modulation metal nitride nanoparticles embedded within hollow N-doped carbon...
The superior binder phases are essential in maintaining the performance of cemented carbide. stability and mechanical properties B(B=Co Ni) which transition-group elements M (M=V, Ti, Ta, Cr, Mo, W) maximumly dissolve investigated by first-principles calculation based on density functional theory (DFT). lattice constants B increase when in, all B-M except for Ni-Cr binary solid solutions thermodynamic stable. dissolving can enhance bulk modulus B, shear Young’s Ni. Particularly, dissolution...