Publications by authors named "Shuangxing Cui"
Carbonyl-containing organic electrodes have been widely considered as ideal substitutes for traditional inorganic compounds in sodium-ion batteries (SIBs) due to their excellent redox reversibility and structural tunability. However, constructing effective Na diffusion channels in these materials is very challenging. To address this issue, we design a new organic molecule, N,N'-bis(3,4,5-trimethoxyphenyl)-1,4,5,8-naphthalenediimide (NDI-DTMA), containing a donor-acceptor-donor (D-A-D) structure.
View Article and Find Full Text PDFMOF-Derived Co(Fe)OOH Slab and Co/MoN Nanosheet-Covered Hollow-Slab for Efficient Overall Water Splitting.
ACS Appl Mater Interfaces
December 2024
Article Synopsis
- The study focuses on creating cost-effective and stable electrocatalysts made from nonprecious metals for efficient water splitting to produce renewable hydrogen.
- It discusses the synthesis of transition metal oxyhydroxides and nitrides with varied shapes, specifically highlighting Fe-doped Co-MOF, which enhances oxygen evolution reaction (OER) performance.
- The findings show that using Co(Fe)OOH as the anode and Co/MoN as the cathode in an alkaline electrolyzer leads to a low cell voltage of 1.49 V with impressive long-term stability of 100 hours.
Single Atomic Cu-C Sites Catalyzed Interfacial Chemistry in Bi@C for Ultra-Stable and Ultrafast Sodium-Ion Batteries.
Angew Chem Int Ed Engl
January 2025
Article Synopsis
- Designing catalytic electrode materials is essential for improving battery performance, focusing on the interfacial chemistry at the electrode-electrolyte interface.
- A novel electrode, Bi@SA Cu-C, was created using metal-organic frameworks; it effectively enhances bond dissociation in the electrolyte and promotes a beneficial solid electrolyte interphase.
- The new electrode demonstrates impressive performance metrics, achieving a capacity of 351 mAh/g and an energy density of 265 Wh/kg, showcasing a promising approach for sodium-ion storage.
Article Synopsis
- Doping heteroatoms like selenium and creating phosphorus vacancies in CoP-FeP improves its electronic structure and enhances reactivity.
- The resulting CoFe-P-Se demonstrates a high specific capacitance of 8.41 F cm in supercapacitor applications, with impressive energy and power densities, along with excellent cycle stability.
- When used as an OER electrode, CoFe-P-Se achieves low overpotentials and maintains stability for over 50 hours, supporting the potential for high-performance electrode development.
Article Synopsis
- Transition metal sulfides and selenides are widely used as electrode materials in supercapacitors, but their performance is limited by slow redox kinetics and structural issues during charge-discharge cycles.
- Researchers developed hollow CoS nanotubes and created dual-phase heterostructures by electro-depositing NiSe or CoSe on them, resulting in NiSe@CoS and CoSe@CoS configurations.
- These hybrid supercapacitors showed impressive areal capacitances and energy storage performance, along with excellent cycling stability over 5000 cycles, suggesting a promising pathway for improving supercapacitor efficiency through advanced material design.