Thermal stability of C–F/C(–F)2 bonds in fluorinated graphene detected by in situ heating infrared spectroscopy

文献情報

出版日 2021-11-06

DOI 10.1039/D1CP04472A

インパクトファクター 3.676

著者

Yulong Li, Jingliang Cheng, Xu Wang, Yang Liu, Xiangyang Liu

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要旨

The thermal stability of fluorinated graphene (FG) plays an important role in its application and research, and thus it is necessary to conduct in-depth research on the thermal stability of the C–F bond in FG. Herein, FG with different types and distributions of C–F/C(–F)2 bonds were synthesized, and the correlation between the C–F/C(–F)2 bonds and thermal stability of these FG samples was monitored via in situ heating infrared spectroscopy (in situ FTIR). The stability of the different types and distributions of C–F/C(–F)2 bonds in FG and the temperatures at which these C–F/C(–F)2 bonds were eliminated were determined. In terms of C–F bonds in FG, the most stable type is that in C(–F)2 of perfluorinated FG, followed by the C–F bonds in perfluorinated FG. The thermal stability of isolated C–F bonds and C(–F)2 bonds adjacent to the conjugated structure was the worst, which would be detached from FG at low temperature (≤82 °C). Furthermore, the evolution of the conjugated structures in FG during thermal annealing was also affected by the type and distribution of the C–F bonds.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Thermal stability of C–F/C(–F)2 bonds in fluorinated graphene detected by in situ heating infrared spectroscopy

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Physical Chemistry Chemical Physics

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