A5054768469- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Supercapacitor Materials and Fabrication
- Advanced Battery Technologies Research
- Graphene research and applications
- Catalytic Processes in Materials Science
- Geochemistry and Elemental Analysis
- Chemical and Physical Properties in Aqueous Solutions
- Nanomaterials for catalytic reactions
- Semiconductor materials and devices
- Paleontology and Stratigraphy of Fossils
- Geology and Paleoclimatology Research
- Green IT and Sustainability
- Advanced Sensor and Energy Harvesting Materials
- Electrochemical Analysis and Applications
Binghamton University
2022-2025
Chinese Academy of Sciences
2017-2022
China University of Geosciences (Beijing)
2022
Institute of Tibetan Plateau Research
2022
Ningbo Institute of Industrial Technology
2017-2018
LiNi0.8Mn0.1Co0.1O2 (NMC811) is a popular cathode material for Li-ion batteries, yet degradation and side reactions at the cathode-electrolyte interface pose significant challenges to their long-term cycling stability. Coating LiNixMnyCo1-x-yO2 (NMC) with refractory materials has been widely used improve stability of interface, but mixed results have reported Al2O3 coatings Ni-rich NMC811 materials. To elucidate role effect coating, we coated commercial-grade electrodes by atomic layer...
Atomic layer deposition (ALD) is a popular method of coating battery electrodes with metal oxides for improved cycling stability. While significant research has focused on the interaction between reactive alkyl precursor and electrode materials, little known about reactivity toward other components electrode, such as polymer binder. This study presents combined computational experimental investigation reaction polyvinylidene (PVDF) binder trimethylaluminum (TMA) commonly used Al2O3 by ALD....
A catalyst of silver nanoparticle decorated CeO<sub>2</sub> microspheres was first reported for ORR and applied in an aluminum–air battery with excellent performance.
The development of the efficient and economical catalysts for oxygen reduction reaction (ORR) is an important issue commercialization metal-air batteries. Herein, a silver-doped δ-MnO2 dispersed on carbon powder (Ag-MnO2/C) was synthesized by facile route. specific surface area Ag-MnO2/C more than three times higher that MnO2/C. Moreover, shows much catalytic activity toward ORR MnO2/C or Ag/C. half-wave potential positive compared with 20% Pt/C. also exhibits excellent long-term stability...
Macroscopic porous graphene materials composed of sheets have demonstrated their advantageous aspects in diverse application areas. It is essential to maximize excellent performances by rationally controlling the sheet arrangement and pore structure. Bulk with oriented structure are prepared marrying electrolyte‐assisted self‐assembly shear‐force‐induced alignment oxide sheets, super elasticity anisotropic mechanical, electrical, thermal properties induced this unique systematically...
Layered transition metal oxides (TMOs), like the P2-type Na
A nanoarchitectured La2O2CO3–La0.7Sr0.3MnO3 hybrid catalyst is prepared by a facile hydrothermal method. The La2O2CO3 nanorods are well distributed on the regular hexagonal La0.7Sr0.3MnO3 nanosheet. has better catalytic activity to oxygen reduction reaction than that of or La0.7Sr0.3MnO3. kinetics result shows sample follows four-electron transferred process during reaction. Furthermore, stability higher Pt/C. By using as cathode catalysts for aluminum–air battery, power densities can reach...
Conventional cathodes for Li-ion batteries are layered transition-metal oxides that support Li+ intercalation charge-balanced by redox on the transition metals. Oxidation beyond one electron per metal can be achieved in Li-rich involving structural anions, which necessitates high voltages and complex charge compensation mechanisms convoluted degradation reactions. We report a detailed spectroscopic analysis of multielectron material Li2Ru0.3Mn0.7O3, chosen due to its low Ru content. Ex situ...
Layered transition metal oxides hold promise as cathode materials for sodium-ion batteries (SIBs). The P2-type Na2/3Ni1/3Mn2/3O2 presents a high theoretical capacity and energy density, yet rapid degradation occurs when the high-voltage plateau corresponding to nominal Ni4+/Ni3+ redox is activated. Mitigating this necessary realize of material. While surface modification common strategy improve stability at voltages, its effectiveness on layered SIBs remains elusive. In work, we investigated...
A new conductive carbon hybrid combining both reduced graphene nanoscrolls and nanotubes (rGNSs-CNTs) is prepared, used to host Fe3O4 nanoparticles through an in situ synthesis method. As anode material for LIBs, the obtained Fe3O4@rGNSs-CNTs shows good electrochemical performance. At a current density of 0.1 g−1, high reversible capacity 1232.9 mAh g−1 after 100 cycles. Even at 1 it still achieves 812.3 200 Comparing with bare Fe3O4/rGO composite materials without nanoscroll structure, much...
Abstract La 1− x Sr MnO 3 (LSM) has been proposed as one of the best oxygen reduction reaction catalysts (ORRCs) to substitute noble metals. It is well known that an improvement oxygen‐adsorption capacity beneficial catalytic activity LSM perovskites. Herein, composite material 0.7 0.3 @Ce 0.75 Zr 0.25 O 2 (LSM@CZ) synthesized by a facile electrostatic self‐assembly method in two‐step strategy. The CZ nanoparticles are distributed on surface material. LSM‐4CZ catalyst exhibits good alkaline...
Aqueous Zn-ion batteries have been proposed as safe and economical options for large-scale energy storage. In theory, they operate by reversibly shuttling zinc ions between a metallic anode cathode material Zn2+ ion intercalation through an aqueous electrolyte of salt solution. practice, protons (H+) in the can compete with even predominate reaction. A diagnostic consequence H+, opposed to Zn2+, insertion is precipitation layered double hydroxide (LDH) crystals, which be readily identified...
Electrochemical cycling of the VOPO 4 cathode in aqueous Zn-ion batteries proceeds via proton insertion, which is accompanied by conformal coating an amorphous ZnO layer on electrode particles.