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We designed and synthesized three methacrylate-derived sulfurized polymer cathodes a one-step polymerization at room temperature. Among them, the cyclohexyl methacrylate-based sulfurized polymer (SP-2) cathode exhibited both high capacity and stability, enabling stable cycling over a 0-60 °C temperature range.
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http://dx.doi.org/10.1039/d5cc01709b | DOI Listing |
Luminescence
September 2025
Beijing Key Laboratory of Energy Conversion and Storage Materials, Beijing, China.
A novel aggregation-induced emission (AIE) system with superior performance was successfully developed through local chemical modification from thiophene to thiophene sulfone. This approach, leveraging easily accessible tetraphenylthiophene precursors, dramatically enhances the photophysical properties in a simple oxidation step. Notably, the representative 2,3,4,5-tetraphenylthiophene sulfone (3c) demonstrates remarkable solid-state emission characteristics with a fluorescence quantum yield of 72% and an AIE factor of 240, substantially outperforming its thiophene analog.
View Article and Find Full Text PDFJ Colloid Interface Sci
August 2025
Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China. Electronic address:
Lithium‑sulfur batteries (LSBs) are promising alternatives to lithium-ion batteries due to their high energy density and low cost. However, issues like the lithium polysulfide (LiPSs) shuttle effect, lithium dendrite growth, and flammable electrolytes hinder commercialization. In this study, we have developed a metal-based catalyst, bismuth oxychloride (BiOCl) nanoflowers coated with conductive polypyrrole (Bi@Ppy), via hydrothermal synthesis.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ, 85721, USA.
A detailed understanding of the composition and polymerization mechanism of elemental sulfur remains a decades long unresolved question for modern chemistry. However, the dynamic nature of molten sulfur significantly complicates its accurate characterization. To overcome this challenge, we performed the first comprehensive molecular dynamics (MD) simulations using a ReaxFF reactive force field specifically parameterized to capture the complex ring-opening polymerization dynamics of elemental sulfur.
View Article and Find Full Text PDFACS Sustain Chem Eng
September 2025
Electrochemical Innovation Lab, Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K.
Traditionally, binders such as poly-(vinylidene fluoride) (PVDF) have been used within lithium-sulfur (Li-S) batteries, but these present environmental and recyclability challenges and have little to no impact on the processes that drive degradation in the cell's chemistry. Ideally, a Li-S battery binder would contribute to the mitigation of the polysulfide shuttle effect and negate the impacts of positive electrode volume expansion while being compatible with aqueous ink preparation and low-energy, low-toxicity recycling processes. In this work, we demonstrate that fibroin, an economical and sustainable biological polymer with an abundance of functional groups, can effectively trap polysulfides while still offering the durability, cyclability, and ease of use offered by the current state-of-the-art binder (PVDF).
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
Shandong Key Laboratory of Advanced Chemical Energy Storage and Intelligent Safety, Advanced Technology Research Institute, Beijing Institute of Technology, Jinan, 250300, China.
Lithium-sulfur batteries have been regarded as a promising candidate for next-generation energy storage systems owing to their high energy density and low cost. Sulfurized polyacrylonitrile (SPAN) as a cathode material has received wide interest due to the solid-solid conversion mechanism, while the Li-SPAN cell performance has been limited by the notorious issue of lithium metal anode. Developing solid-state electrolytes for lithium-sulfur batteries with favorable electrode-electrolyte compatibility is urgently desired.
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