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The interlayer space of 2D materials can be a slit reactor where transformations not typical for the gas phase occur. We report redox reactions involving acetonitrile and nitrogen oxide guests in galleries of fluorinated graphite. Fluorinated graphite intercalation compounds with acetonitrile are treated with dinitrogen tetraoxide and the synthesis products are studied by a set of experimental methods. Data analysis reveals that N2O4 dissociates in fluorinated graphite matrices to form nitrogen-containing species NO3, NO2, NO, and N2. The interaction of NO3 with acetonitrile yields HNO3, which predominates as a guest in the synthesis products independently of the fluorination degree of the matrix. This reaction is accompanied by the removal of fluorine atoms weakly bonded to the graphite layers, leading to partial defluorination of the matrices. Our work demonstrates the possibility of using fluorinated graphite as a test nanoreactor whose dimension can be controlled by fluorination of the layers.
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http://dx.doi.org/10.1039/d0cp06412b | DOI Listing |
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September 2025
Department of Energy Science, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea.
Water-washing effectively removes surface residual lithium from high-Ni LiNiCoMnO (NCM) cathodes; however, it inevitably degrades the electrochemical performance. To address this issue, integrated strategies targeting the conversion of surface residual lithium into artificial coating layers on high-Ni NCM cathodes have been proposed; however, these require further processing, thus hindering their industrial application. This study proposes a trailblazing strategy for directly converting residual lithium into a LiF layer simultaneously formed on both the surface of secondary particles and the interfaces between the primary particles of high-Ni NCM, without requiring further processing.
View Article and Find Full Text PDFJ Phys Chem B
September 2025
Dipartimento di Scienze Chimiche, Università di Padova, Via F. Marzolo 1, 35131 Padova, Italy.
Compound , (5)-2-hydroxy-4-methyl-6-oxo-5-[(5-phenylfuran-2-yl)methylidene]-5,6-dihydropyridine-3-carbonitrile, is an effective NEK6 kinase inhibitor with demonstrated anticancer and neuroprotective activity. However, its poor aqueous solubility (3 μg/mL) presents a significant barrier to therapeutic development. To address this limitation, we developed a graphene-based nanocarrier system by conjugating compound and its fluorinated derivatives ( and ) onto structurally uniform few-layer graphene nanoparticles (GNPs) obtained via ball-milling and liquid-phase exfoliation (B60).
View Article and Find Full Text PDFAdv Mater
August 2025
State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
To improve the energy density of Li-ion batteries, conventional sacrificial prelithiation agents (LiFeO, LiO and LiCO, etc.) are introduced to compensate for active lithium loss, but they undergo serious volumetric shrinkage during decomposition, generating voids that compromise electrode architecture integrity and deteriorate electrochemical performance. Herein, the typical Li-rich layered oxide cathode is converted into Li-rich disordered rocksalt oxide (LRDO) prelithiation agent, achieving 330 mAh g charge capacity and retaining 130 mAh g reversible capacity (contributing 200 mAh g irreversible prelithiation capacity).
View Article and Find Full Text PDFJ Am Chem Soc
August 2025
Center for Renewable Energy and Storage Technologies (CREST), Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
The atom arrangement in carbon electrocatalysts is crucial for enhancing the intrinsic activity toward oxygen reduction reactions (ORRs), a key process in multiple renewable energy systems. However, the challenge of designing electrocatalysts with improved performance by manipulating atomic arrangement has been limited by synthetic constraints and a lack of understanding of the catalytic phase formation. Herein, we gain atomic-level insight into the origin of a highly active site by creating a model catalyst with a heteroatom-decorated carbon matrix of a specific configuration.
View Article and Find Full Text PDFACS Biomater Sci Eng
September 2025
School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, P. R. China.
Although glass ionomer cement (GIC) is frequently adopted as the filling material for decayed teeth, it shows disadvantages like poor mechanical property and a low concentration on fluoride release, in which its clinical applications are limited. In this article, fluorinated graphene (FG) and ZnS:Mn mechanoluminescence were dexterously adopted to GIC, thus successfully constructing the ternary composite glass ionomer cement material with high-strength anticaries to treat dental caries via filling. SEM, XRS, XRD, and FTIR were adopted to characterize the structural morphology and chemical composition of GFZ, comprehensively evaluating its mechanical properties, antibacterial features, and biocompatibility.
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