KOH modification of fluorinated graphite and its reaction mechanism
KOH electrochemical method and heating method were employed to modify fluorinated graphite and explore the modification mechanism. The chemical composition and microstructure of the products were characterized and analyzed before and after the reaction. As the electrochemical reaction time or heatin...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-10-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2022.999753/full |
| _version_ | 1811181781196472320 |
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| author | Hao Li Genliang Hou Xiaojing Yuan Zhaohui Liu Weipeng Luo Yongzhi Song Song Bi |
| author_facet | Hao Li Genliang Hou Xiaojing Yuan Zhaohui Liu Weipeng Luo Yongzhi Song Song Bi |
| author_sort | Hao Li |
| collection | DOAJ |
| description | KOH electrochemical method and heating method were employed to modify fluorinated graphite and explore the modification mechanism. The chemical composition and microstructure of the products were characterized and analyzed before and after the reaction. As the electrochemical reaction time or heating temperature increased, the carbon fluorine bond gradually underwent a nucleophilic reaction with KOH according to its reactivity, promoting the formation of fluorine ions in the residual product and carbon oxygen bonds in the corresponding oxidized fluorinated graphite (OFG). The electrochemical method with the anode on the bottom and the heating method were insufficient to allow the isolated carbon fluorine bond to react, retaining some carbon fluorine bonds. By positioning the anode on top, electron transfer significantly accelerates the activation of the carbon fluorine bond, which then reacts completely. According to theoretical simulation calculations, electronegative groups around the carbon fluorine bond can effectively enhance its reactivity. |
| first_indexed | 2024-04-11T09:22:00Z |
| format | Article |
| id | doaj.art-f76d71ebdff242168806d49f1ea7b9e2 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-04-11T09:22:00Z |
| publishDate | 2022-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-f76d71ebdff242168806d49f1ea7b9e22022-12-22T04:32:09ZengFrontiers Media S.A.Frontiers in Materials2296-80162022-10-01910.3389/fmats.2022.999753999753KOH modification of fluorinated graphite and its reaction mechanismHao Li0Genliang Hou1Xiaojing Yuan2Zhaohui Liu3Weipeng Luo4Yongzhi Song5Song Bi6304 Department, Xi’an Research Institute of High-Tech, Xi’an, Shaanxi, China304 Department, Xi’an Research Institute of High-Tech, Xi’an, Shaanxi, China304 Department, Xi’an Research Institute of High-Tech, Xi’an, Shaanxi, ChinaCollege of Weapon Science and Technology, Xi’an Technological University, Xi’an, Shaanxi, China304 Department, Xi’an Research Institute of High-Tech, Xi’an, Shaanxi, China304 Department, Xi’an Research Institute of High-Tech, Xi’an, Shaanxi, China304 Department, Xi’an Research Institute of High-Tech, Xi’an, Shaanxi, ChinaKOH electrochemical method and heating method were employed to modify fluorinated graphite and explore the modification mechanism. The chemical composition and microstructure of the products were characterized and analyzed before and after the reaction. As the electrochemical reaction time or heating temperature increased, the carbon fluorine bond gradually underwent a nucleophilic reaction with KOH according to its reactivity, promoting the formation of fluorine ions in the residual product and carbon oxygen bonds in the corresponding oxidized fluorinated graphite (OFG). The electrochemical method with the anode on the bottom and the heating method were insufficient to allow the isolated carbon fluorine bond to react, retaining some carbon fluorine bonds. By positioning the anode on top, electron transfer significantly accelerates the activation of the carbon fluorine bond, which then reacts completely. According to theoretical simulation calculations, electronegative groups around the carbon fluorine bond can effectively enhance its reactivity.https://www.frontiersin.org/articles/10.3389/fmats.2022.999753/fulloxidized fluorinated graphiteKOH modificationnucleophilic reactionelectrochemical reactioncarbon-fluorine bond activation |
| spellingShingle | Hao Li Genliang Hou Xiaojing Yuan Zhaohui Liu Weipeng Luo Yongzhi Song Song Bi KOH modification of fluorinated graphite and its reaction mechanism Frontiers in Materials oxidized fluorinated graphite KOH modification nucleophilic reaction electrochemical reaction carbon-fluorine bond activation |
| title | KOH modification of fluorinated graphite and its reaction mechanism |
| title_full | KOH modification of fluorinated graphite and its reaction mechanism |
| title_fullStr | KOH modification of fluorinated graphite and its reaction mechanism |
| title_full_unstemmed | KOH modification of fluorinated graphite and its reaction mechanism |
| title_short | KOH modification of fluorinated graphite and its reaction mechanism |
| title_sort | koh modification of fluorinated graphite and its reaction mechanism |
| topic | oxidized fluorinated graphite KOH modification nucleophilic reaction electrochemical reaction carbon-fluorine bond activation |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2022.999753/full |
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