Toward the synthesis, fluorination and application of N-graphyne

The discovery of properties and applications of unknown materials is one of the hottest research areas in materials science. In this work, we navigate a route towards these goals by the development of a new type of graphyne nanostructure. It is synthesised by a Sonogashira cross-coupling reaction of...

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Bibliographic Details
Published in:RSC advances 2020-11, Vol.1 (66), p.419-429
Main Authors: Abdi, Gisya, Filip, Anna, Krajewski, Micha, Kazimierczuk, Krzysztof, Strawski, Marcin, Szarek, Pawe, Hamankiewicz, Bartosz, Mazej, Zoran, Cichowicz, Grzegorz, Leszczy ski, Piotr J, Fija kowski, Karol J, Szczurek, Andrzej
Format: Article
Language:English
Subjects:
Anodes
Biocompatibility
Chemical reactions
Chemistry
Cross coupling
Crystallography
Dielectric loss
E coli
Electrical resistivity
Electrode materials
Electronic structure
Fluorination
Fluorine
Lithium-ion batteries
Materials science
Morphology
NMR
Nuclear magnetic resonance
Photoluminescence
Photomicrographs
Raman spectroscopy
Rechargeable batteries
Single crystals
Spectrum analysis
X ray photoelectron spectroscopy
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Summary:The discovery of properties and applications of unknown materials is one of the hottest research areas in materials science. In this work, we navigate a route towards these goals by the development of a new type of graphyne nanostructure. It is synthesised by a Sonogashira cross-coupling reaction of 1,3,5-triethynylbenzene with cyanuric chloride resulting in an extended carbon-based material called TCC. Also, we modify the obtained TCC via fluorination using XeF 2 at various concentrations to investigate the effect of fluorination on the triple bonds and the conjugated structure of graphyne. In this study, we put special emphasis on the determination of the impact of the fluorine content and the type of CF functionalities on the morphology, chemical and electronic structure, biocompatibility, electrical conductivity and possible applicability as anode materials for Li-ion batteries. The obtained results indicate that the character of C-F bonds influences the final properties of fluorinated materials. The polar C-F bonds are preferable for cell proliferation while CF 2 groups are most suitable for battery devices, however, the appearance of PTFE-like units may have a negative impact on battery specific capacitance as well as on cell viability. The appearance of PTFE-like nanochains in the structure of fluorinated N-graphyne strongly influences both electrochemical and biological properties.
ISSN:2046-2069
2046-2069
DOI:10.1039/d0ra08143d