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High selectivity, capacity and stability for electrochemical lithium extraction on boron-doped HMnO by tailoring lattice constant and intercalation energy.
Water Res
January 2025
State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China; College of Environment and Resources, Xiangtan University, Xiangtan, Hunan 411105, PR China. Electronic address:
A sustainable supply of lithium from salt-lake brines is necessary due to the surge in demand of the lithium-battery market. However, the presence of coexisting ions, particularly Na, poses a significant challenge due to the similarities in charge, electronic structure, and hydrated size. The electrochemical system with manganese (Mn)-based lithium-ion (Li) sieves electrodes is a promising method for Li recovery, but often suffers from geometric configuration distortion, which reduces their selectivity and capacity.
View Article and Find Full Text PDFEffect of the Electrolyte on the Oxygen Reduction Reaction with PCN-224(Co).
ChemSusChem
January 2025
Leiden University: Universiteit Leiden, Leiden Institute of Chemistry, Einsteinweg 55, Room number EE4.19, 2333 CC, Leiden, NETHERLANDS, KINGDOM OF THE.
Electrocatalysis in metal-organic frameworks is an interplay between the diffusion of charges, the intrinsic catalytic rate, and the mass-transport of reactants through the pores. Here a systematic study is carried out to investigate the role of the electrolyte nature and concentration on the oxygen reduction reaction (ORR) with the PCN-224(Co) MOF in aqueous electrolyte. It was found that the ORR activity is slightly influenced by the nature of the ions in solution, providing that the ionic strength is high enough to minimize the resistivity during the measurement.
View Article and Find Full Text PDFInteratomic Coulombic decay in lithium-doped large helium nanodroplets induced by photoelectron impact excitation.
Rep Prog Phys
January 2025
Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, Aarhus, Midtjylland, 8000, DENMARK.
Irradiation of condensed matter with ionizing radiation generally causes direct photoionization as well as secondary processes that often dominate the ionization dynamics. Here, large helium (He) nanodroplets with radius ≳ 40 nm doped with lithium (Li) atoms are irradiated with extreme ultraviolet (XUV) photons of energy hν ≥ 44.4 eV and indirect ionization of the Li dopants is observed in addition to direct photoionization of the He droplets.
View Article and Find Full Text PDFP2-NaMnNiCoO stabilized by optimal active facets for sodium-ion batteries.
J Colloid Interface Sci
January 2025
MOE Key Laboratory for UV Light-Emitting Materials and Technology, Department of Physics, Northeast Normal University, Changchun, Jilin 130024, PR China; Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, PR China. Electronic address:
Considering factors such as crustal reserves, atomic mass, redox potential and energy density, sodium-ion batteries (SIBs) are regarded as the most promising alternative to lithium-ion batteries (LIBs). Transition metal-based layered oxides, especially typical NaMnO, stand out among cathode materials due to their low cost and high energy density. However, NaMnO cathodes face several challenges, including Jahn-Teller distortion, manganese dissolution, structural collapse, irreversible phase transition and significant capacity loss.
View Article and Find Full Text PDFOrganic/Inorganic Hybrid Cross-Linked Gel Polymer Electrolyte for Optimizing the Solvation Structure of Lithium Ions.
ACS Appl Mater Interfaces
January 2025
Guangdong Key Laboratory for Hydrogen Energy Technologies, School of Materials and Energy, Foshan University, Foshan 528000, PR China.
Lithium metal electrodes inevitably lead to the decomposition of the liquid electrolyte and lithium dendrite growth, both of which result in the formation of unstable solid electrolyte intermediates (SEIs). Gel polymer electrolytes (GPEs) are expected to replace liquid electrolytes for optimizing the SEI issues of lithium metal. Herein, a cellulose-based gel electrolyte cross-linked by thiol-modified polyhedral oligomeric silsesquioxane (thiol-modified-POSS) was successfully obtained based on "thiol-ene" click chemistry.
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