We employed a facile bimolecular (glucose and DMEA) assisted hydrothermal reaction and a solid-state reaction to obtain carbon-coated hierarchical LiTi(PO) on a large scale. The nanoporous material exhibits excellent high-rate and cycling performance owing to enhanced electronic conductivity from the ultrathin carbon layer, Ti and the shortened path for Li diffusion by nanoporous frameworks.
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http://dx.doi.org/10.1039/c7cc04432a | DOI Listing |
J Mater Chem A Mater
January 2025
MESA+ Institute for Nanotechnology, University of Twente 7500 AE Enschede Netherlands
The advancement of rapid-response grid energy storage systems and the widespread adoption of electric vehicles are significantly hindered by the charging times and energy densities associated with current lithium-ion battery technology. In state-of-the-art lithium-ion batteries, graphite is employed as the standard negative electrode material. However, graphite suffers from polarization and deteriorating side-reactions at the high currents needed for fast charging.
View Article and Find Full Text PDFRSC Adv
January 2025
Institute of Sciences and Technology, TNU-University of Sciences Thai Nguyen 250000 Vietnam
The sonochemical synthesis of a chitosan-ZnO/FeO nanocomposite yielded a highly porous structure and large surface area for enhancing the photocatalytic degradation of cationic (rhodamine B, RhB) and anionic (methyl orange, MO) dyes in aqueous solution. Chitosan-ZnO/FeO demonstrated a significant enhancement in photodegradation efficiency 99.49% for MO ( = 5.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Shandong University, School of Chemistry and Chemical Engineering, Shanda South road 27#, 250100, Jinan, CHINA.
The poor reversibility of the zinc anode caused by interfacial side reactions and dendritic growth poses significant constraints on the practical application of aqueous zinc-ion batteries. Herein, a co-solute, acesulfame potassium, with strongly polar, zincophilic guest anions is introduced into a conventional low-concentration aqueous electrolyte. This regulation enhances the electrolyte's ionic conductivity and accelerates the desolvation process of zinc ions at the electrode/electrolyte interface.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China.
Zn-MnO batteries with two-electron transfer harvest high energy density, high working voltage, inherent safety, and cost-effectiveness. Zn as the dominant charge carriers suffer from sluggish kinetics due to the strong Zn-MnO coulombic interaction, which is also the origin of pestilent MnO lattice deformation and performance degradation. Current studies particularly involve H insertion-dominating chemistry, where the long-term cycle stability remains challenging due to the accumulative Zn insertion and structural collapse.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Nankai University, College of Chemistry, No.94 Weijin Road, 300071, Tianjin, CHINA.
Aqueous proton batteries (APBs) have attracted increasing interest owing to their potential for grid-scale energy storage with extraordinary sustainability and excellent rate abilities. However, there are limited anode materials and it remains a great challenge to effectively balance capacity and cycling performance. Here, we report a covalent organic framework containing C=O and C=N dual active sites (TABQ-COF) as a high-capacity and long-cycle anode for proton batteries.
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