Shuangshuang Tian , Yingyu Wu , Yilin Jin , Jiahao Wang , Benli Liu , Feng Hu , Xiaoping Jin
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引用次数: 0
Abstract
In recent years, C6F12O gas mixtures has shown extensive prospects for application in medium and low-voltage gas-insulated equipment due to its superior electrical performance and environmental friendliness. The presence of trace water may promote overheating decomposition of gas mixtures. Therefore, studying the thermal decomposition characteristics of C6F12O in a trace water condition is of significant importance for the industrial application, operation, and maintenance of gas equipment. In this paper, the thermal decomposition characteristics of C6F12O/CO2 gas mixtures under trace water conditions are investigated both experimentally and theoretically. The analysis of decomposition products is conducted using gas chromatography-mass spectrometry (GC–MS) on a constructed experimental platform for C6F12O/CO2 gas mixtures overheating. Based on ReaxFF molecular dynamics (ReaxFF-MD), the decomposition characteristics of the gas mixtures over time and the concentration of trace water are observed. The main decomposition reaction paths of C6F12O/CO2 gas mixtures under trace water conditions are analyzed at a microscopic level. Experiment results indicate that the main thermal decomposition products include CF4, C2F6, C3F6, C3F8, CF2O, C3F7H, C4F10, C6F14, C5F12, and CF3H. Additionally, trace water facilitates the thermal decomposition of the C6F12O/CO2 gas mixtures. Theoretical results indicate that multi-step decomposition occurs in the C6F12O component of the gas mixtures, with main generated intermediates including CO, F, CF3, C2F5, C3F7, CFO2, CF2, C2, CF, C4F7O, CF3O, CFO, O, C3F5O, CF2O, C, C2O, H, and OH. The findings of this study provide a foundation for further exploration of trace water content values in C6F12O gas mixtures at a microscopic level in subsequent research.
期刊介绍:
The Journal of Fluorine Chemistry contains reviews, original papers and short communications. The journal covers all aspects of pure and applied research on the chemistry as well as on the applications of fluorine, and of compounds or materials where fluorine exercises significant effects. This can include all chemistry research areas (inorganic, organic, organometallic, macromolecular and physical chemistry) but also includes papers on biological/biochemical related aspects of Fluorine chemistry as well as medicinal, agrochemical and pharmacological research. The Journal of Fluorine Chemistry also publishes environmental and industrial papers dealing with aspects of Fluorine chemistry on energy and material sciences. Preparative and physico-chemical investigations as well as theoretical, structural and mechanistic aspects are covered. The Journal, however, does not accept work of purely routine nature.
For reviews and special issues on particular topics of fluorine chemistry or from selected symposia, please contact the Regional Editors for further details.