A5034056469- Advanced battery technologies research
- Advancements in Battery Materials
- Aluminum Alloy Microstructure Properties
- Aluminum Alloys Composites Properties
- Microstructure and mechanical properties
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- Electronic and Structural Properties of Oxides
- Catalytic Processes in Materials Science
- Fuel Cells and Related Materials
- MXene and MAX Phase Materials
- 2D Materials and Applications
- Advanced Photocatalysis Techniques
- Semiconductor materials and devices
- Integrated Circuits and Semiconductor Failure Analysis
- Semiconductor materials and interfaces
- Conducting polymers and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Transition Metal Oxide Nanomaterials
- Silicon and Solar Cell Technologies
- Computer Graphics and Visualization Techniques
- Copper-based nanomaterials and applications
- Advanced Malware Detection Techniques
- Advanced Battery Technologies Research
Yunnan University
2021-2024
Nanjing University
2013-2024
Sichuan Normal University
2023-2024
Hubei University of Technology
2024
Shandong University
2017-2024
Morgan State University
2020-2024
Collaborative Innovation Center of Advanced Microstructures
2015-2024
State Key Laboratory of Pollution Control and Resource Reuse
2024
Nanjing University of Science and Technology
2024
Soochow University
2024
The design and development of inexpensive highly efficient electrocatalysts for hydrogen production underpins several emerging clean-energy technologies. In this work, the first time, molybdenum disulfide (MoS2) nanodots have been synthesized by ionic liquid assisted grinding exfoliation bulk platelets isolated sequential centrifugation. a thickness up to 7 layers (∼4 nm) an average lateral size smaller than 20 nm. Detailed structural characterization established that retained crystalline...
Lithium‐rich layered oxides (LLOs) exhibit great potential as high‐capacity cathode materials for lithium‐ion batteries, but usually suffer from capacity/voltage fade during electrochemical cycling. Herein, a gradient polyanion‐doping strategy is developed to initiate surface structural transition form spinel‐like nanolayer and polyanion‐doped core material in LLOs simultaneously. This integrates the advantages of both bulk doping modification oxygen close‐packed structure stabilized by...
Abstract The advanced aqueous zinc–ion batteries (AZIBs) are still challenging due to the harmful reactions including hydrogen evolution and corrosion. Here, a natural small molecule acid vitamin C (Vc) as an electrolyte additive has been selectively identified. Vc can adjust d band center of Zn substrate which fixes active H + so that reaction (HER) is restrained. Simultaneously, it could also fine–tune solvation structure ions enhanced electrostatics reduced Pauli repulsion verified by...
Two porous supramolecular isomeric frameworks show unique sorption properties, one with temperature dependent stepwise and hysteretic selective of CO(2) while the other shows gas uptake capacity for CO(2), N(2), H(2) CH(4) at low over N(2) around room temperature.
Ultrathin 2D ammonium vanadate nanosheets were grown on alkali-treated carbon cloth <italic>via</italic> a facile hydrothermal method. This free-standing cathode enables fast ion/electronic transport and reduces the aggregation of ultrathin nanosheets.
Electrochemical water-splitting reactions (hydrogen evolution reaction (HER) and oxygen (OER)) redox (oxygen reduction (ORR) OER) are core processes for electrochemical devices, rechargeable metal-air batteries, regenerative fuel cells. Developing highly efficient non-noble multifunctional catalysts in the same electrolyte is an open challenge. Herein, Co-N-C electrocatalysts with a mixed structure comprising Co-N moieties Co nanoparticles encapsulated N-doped carbon layer were prepared via...
Two-dimensional multi-layered microstructure generated by hydrofluoric acid etching is essential for the high capacitance MXenes. However, mechanisms dictating formation, evolution and properties of MXenes during remain elusive due to lack direct observation. Herein, using ex-situ scanning electron microscopy combined with resolution transmission microscopy, X-ray diffraction photoelectron spectroscopy, we have revealed fine variation titanium carbide Ti3C2Tx etched different time. The...
Abstract The oxidation chemistry of two‐dimensional transition metal carbide MXenes has brought new research significance to their protection and application. However, the behavior degradation mechanism MXenes, in particular with time under oxygen conditions at room temperature, remain largely unexplored. Here, several experimental theoretical techniques are used determine a very early stage HF‐etched Ti 3 C 2 T x (a major member = surface functional groups) an environment temperature....
Polyanion doping shows great potential to improve electrochemical performance of Li-rich layered oxide (LLO) materials. Here, by optimizing the content and annealing temperature, we obtained boron-doped LLO materials Li1.2Mn0.54Ni0.13Co0.13BxO2 (x = 0.04 0.06) with comprehensively improved (94% capacity retention after 100 cycles at 60 mA/g current density a rate capability much higher compared that pristine sample) temperatures 750 650 °C, respectively, which are lower than traditional...
Materials synthesis often provides opportunities for innovation. We demonstrate a general low-temperature (260°C) molten salt electrodeposition approach to directly electroplate the important lithium-ion (Li-ion) battery cathode materials LiCoO2, LiMn2O4, and Al-doped LiCoO2. The crystallinities electrochemical capacities of electroplated oxides are comparable those powders synthesized at much higher temperatures (700° 1000°C). This new growth method significantly broadens scope form factors...
The shortage of lithium resources is promoting the development cost-efficient battery candidates, especially aqueous rechargeable batteries (ARBs) with high safety and power density. Copper hexacyanoferrate (CuHCF) nanoparticles redox potential rate capability employed as cathode for hosting ammonium-ion coupling low-cost zinc anode. Benefiting from selective channel in CuHCF, an ammonium hybrid successfully engineered. It presents cell voltage (1.8 V), outstanding performance, low...
Developing photoanodes that can split water with low (or even without) externally applied bias is a critical challenge for achieving efficient solar-driven photoelectrochemical oxidation. Here, we proposed flux-assisted oriented crystal growth route to minimize the drawbacks of Ta3N5 photoanode, including following: (1) Crystallographic-oriented minimizes negative effect electronic structure anisotropy Ta3N5, facilitating directional fast charge transfer in having lighter carrier effective...
Recently, ammonium-ion (NH4+) storage is in a booming stage aqueous energy systems due to its multitudinous merits. To seek suitable electrode materials with excellent NH4+-storage still the exploratory and full of challenge. Herein, an inorganic-polymer hybrid, poly(3,4-ethylenedioxithiophene) (PEDOT) intercalated hydrated vanadium oxide (VOH), named as VOH/PEDOT, developed tune structure VOH for boosting NH4+ storage. By intercalation PEDOT, interlayer space increased from 11.5 Å 14.2 Å,...
Aqueous zinc ion batteries (AZIBs) are an ideal choice for a new generation of large energy storage devices because their high safety and low cost. Vanadium oxide-based materials have attracted great attention in the field AZIB cathode due to theoretical capacity resulting from rich oxidation states. However, serious structural collapse intrinsic conductivity vanadium cause rapid fading, which hinders further applications materials. Here, characteristics mechanisms reviewed, optimization...