| 羧基化氧化石墨烯对活性炭超电容性能的影响 |
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| 引用本文： | 虞如基,杜玉婷,赖文德,李夕冉,吴金鹏,张馨壬,陈永.羧基化氧化石墨烯对活性炭超电容性能的影响[J].科学技术与工程,2021,21(20):8558-8564. |
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| 作者姓名： | 虞如基 杜玉婷 赖文德 李夕冉 吴金鹏 张馨壬 陈永 |
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| 作者单位： | 海南大学,海南省硅锆钛资源利用研究省重点实验室,海口570228;海南大学,南海海洋资源利用国家重点实验室,海口570228 |
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| 基金项目： | 国家自然科学基金(52062012)；海南省重点研发项目(ZDYF2020028)；科技发展专项基金(ZY2019HN0906) |
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| 摘 要： | 为了提高活性炭的超电容性能,可以利用表面含有丰富官能团的氧化石墨烯(GO)进行复合改性,而环氧基会导致GO平面上离域π键的弯曲变形,可以通过柠檬酸油浴法让环氧基发生开环反应并使GO与超电容活性炭(AC)充分交联,形成稳定整体结构.结果 表明:以250℃热处理的AC-GO所形成的化学交联结构具有良好的循环性能,在水系电解质中经过10000次循环后容量仍保持97.8％.开环作用也使得GO上的羟基和羧基等亲水基含量有所提高,这些基团能提供额外的赝电容,在1 A/g的电流密度下保持了225 F/g的电容.可见通过对GO表面官能团改性复合,能优化炭材料电容性能.
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| 关 键 词： | 表面功能化 氧化石墨烯 超级电容器 官能团 活性炭 电化学性能 |
| 收稿时间： | 2020/12/12 0:00:00 |
| 修稿时间： | 2021/4/27 0:00:00 |
Effects of Carboxylated Graphene Oxide on the Supercapacitive Performances of Activated Carbon |
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| Yu Ruji,Du Yuting,LAI Wen-de,Li Xiran,Wu Jinpeng,Zhang Xinren,Chen Yong.Effects of Carboxylated Graphene Oxide on the Supercapacitive Performances of Activated Carbon[J].Science Technology and Engineering,2021,21(20):8558-8564. |
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| Authors: | Yu Ruji Du Yuting LAI Wen-de Li Xiran Wu Jinpeng Zhang Xinren Chen Yong |
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| Institution: | State Key Laboratory of Marine Resource Utilization in South China Sea,Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources;China,State Key Laboratory of Marine Resource Utilization in South China Sea,Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources;China,State Key Laboratory of Marine Resource Utilization in South China Sea,Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources;China,State Key Laboratory of Marine Resource Utilization in South China Sea,Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources;China,State Key Laboratory of Marine Resource Utilization in South China Sea,Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources;China,State Key Laboratory of Marine Resource Utilization in South China Sea,Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources;China, |
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| Abstract: | |
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| Keywords: | surface functionalization graphene oxide supercapacitors functional groups activated carbon electrochemical properties |
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