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Partially amorphous vanadium oxysulfide for achieving high-performance Li-ion batteries.
J Colloid Interface Sci
January 2025
College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816 China. Electronic address:
Vanadium-based materials exhibit a high theoretical capacity and diverse valence states, rendering them promising candidate anodes for lithium-ion batteries (LIBs). However, the cycling and rate performance are limited by their weak structural stability and electrical conductivity. Herein, a rational amorphization strategy has been developed to construct dual-anion vanadium oxysulfide nanoflowers (VSO NFs) with partial amorphous components and abundant oxygen vacancies as anode material for LIBs.
View Article and Find Full Text PDFLaSrMnO Perovskites for Oxygen Reduction in Zn-Air Batteries: Enhanced by Glucose Regulation.
ACS Appl Mater Interfaces
January 2025
School of Mechanical Science and Engineering, Northeast Petroleum University, 199 Fazhan Road, Daqing 163318, P. R. China.
The actual ORR catalytic activity of perovskite materials is significantly lower than the theoretical value due to their inherently low specific surface area and significant segregation of inactive oxygen ions on the surface. This study reports a sol-gel synthesis approach that employs glucose as a structural regulator to fabricate LaSrMnO (LSM) perovskites. Compared with the original LSM (12.
View Article and Find Full Text PDFEnhanced Photocatalytic Efficiency Through Oxygen Vacancy-Driven Molecular Epitaxial Growth of Metal-Organic Frameworks on BiVO.
Adv Mater
January 2025
School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, 318000, P. R. China.
Efficient charge separation at the semiconductor/cocatalyst interface is crucial for high-performance photoelectrodes, as it directly influences the availability of surface charges for solar water oxidation. However, establishing strong molecular-level connections between these interfaces to achieve superior interfacial quality presents significant challenges. This study introduces an innovative electrochemical etching method that generates a high concentration of oxygen vacancy sites on BiVO surfaces (Ov-BiVO), enabling interactions with the oxygen-rich ligands of MIL-101.
View Article and Find Full Text PDFNanoconfinement-Enabled Resistance to Water Matrix Components for Selective Degradation of Micropollutants.
Angew Chem Int Ed Engl
January 2025
Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
Despite recent substantial advances in water treatment, the ability to selectively degrade trace micropollutants in real waters with complex matrix components remains a grand challenge. Here we report rational crafting of graphene oxide (GO)-wrapped defective TiO composite catalysts that creates nanoscopic confinement over the TiO surface within GO, thereby enabling the selective degradation of micropollutants through effectively excluding natural organic matter (NOM) and anions from the nanoconfined catalytic sites. In contrast to unconfined counterparts, the nanoconfined composite catalysts retain high degradation efficiency when exposed to various concentrations of NOM and anions, even in real water samples.
View Article and Find Full Text PDFEnhancing Catalytic Removal of Autoexhaust Soot Particles via the Modulation of Interfacial Oxygen Vacancies in Cu/CeO Catalysts.
Environ Sci Technol
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State Key Laboratory of Heavy Oil Processing, Key Laboratory of Optical Detection Technology for Oil and Gas, College of Science, China University of Petroleum, Beijing 102249, PR China.
The purification efficiency of autoexhaust carbon strongly depends on the heterogeneous interface structure between active metal and oxide, which can modulate the local electronic structure of defect sites to promote the activation of reactant molecules. Herein, the high-dispersion CuO clusters supported on the well-defined CeO nanorods were prepared using the complex deposition slow method. The formation of heteroatomic Cu-O-Ce interfacial structural units as active sites can capture electrons to achieve activation of the NO and O molecules.
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