A5025168126- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- MXene and MAX Phase Materials
- Advanced Battery Technologies Research
- Extraction and Separation Processes
- Graphene research and applications
- Advanced Memory and Neural Computing
- Carbon and Quantum Dots Applications
- 2D Materials and Applications
- Fiber-reinforced polymer composites
- Graphene and Nanomaterials Applications
Guangdong University of Technology
2020-2025
South China Normal University
2023
Potassium-ion batteries (PIBs) are receiving increasing attention at present because of their cheap and lithium-like charge/discharge processes. Nevertheless, the large potassium-ion radius leads to poor potassium intercalation/depotassium kinetics unstable structure, hindering development. Here, we synthesized a novel carbon quantum dot-derived nanosphere-encapsulated Ti3C2 MXene (CNS@Ti3C2) composite by polymer pyrolysis, while nanospheres were derived from dots. The composites can...
A new ternary Mo–SnO2–graphite composite has been constructed via hydrothermal and ball milling. The Mo/SnO2 hybrids were homogeneously dispersed in graphite nanosheets. In the Mo–SnO2–graphite, Mo can inhibit Sn nanoparticle aggregation, enhance reversible conversion reaction lithiation, improve electrochemical performance. Consequently, contributes a high capacity of 1317.4 mAh g–1 at 0.2 after 200 cycles, remarkable rate property 514.0 5 g–1, long-term cyclic stabilization 759.0 950...
In potassium ion electrode materials, MXenes have garnered significant attention in the energy storage field due to their high conductivity and complex surface chemistry. this work, thiourea was used as a nitrogen–sulfur composite precursor, self-assembly method employed synthesize material, named nitrogen–sulfur– MXene (NS-MXene). During reaction, molecules attach interlayers of MXene, increasing interlayer spacing. Upon heating, decompose into nitrogen (N) sulfur (S), which then combine...
Potassium-ion batteries (PIBs) are of great importance in energy storage due to their natural abundance, low cost, and high operating potential compared lithium sodium. Herein, we first propose carbon quantum dot coating on VSe2 nanosheets (VSe2@CQDs) as anodes for PIBs with the solvothermal annealing methods. In composite, dots embedded nanosheets, which inhibit aggregation volume expansion during cycling, resulting stabilizing structure long cycling stability. Besides, abundant edge...
Carbon materials have been widely concerned and studied for potassium-ion batteries because of abundant resources low prices. But, the large radius potassium ions (1.38 Å) restricts its smooth intercalation deintercalation into carbon layer, resulting in poor cycling stability rate performance. Herein, situ oxygen-doped porous nanoribbons (OPCNBs) fabricated by freeze-drying pyrolysis polymer with enlarged interlayer spacing first time. Due to porosity (0.413 nm) OPCNB, can be rapidly...