| 炭化对沥青基活性炭纤维的结构和超级电容器性能影响 |
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| 引用本文： | 张业琼,丛野,张静,李轩科,董志军,袁观明.炭化对沥青基活性炭纤维的结构和超级电容器性能影响[J].无机化学学报,2018,34(8):1430-1436. |
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| 作者姓名： | 张业琼 丛野 张静 李轩科 董志军 袁观明 |
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| 作者单位： | 武汉科技大学化学与化工学院湖北省煤转化与新型炭材料重点实验室;湖南大学先进炭材料及应用技术湖南重点实验室 |
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| 基金项目： | 国家自然科学基金（No.51472186，51402221）和湖北省教育厅中青年人才项目（No.Q20151109）资助。 |
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| 摘 要： | 以450℃低温炭化的各向异性中间相沥青基炭纤维为原料,先通过KOH化学活化方法制备出活性炭纤维(ACFs),再对ACFs进行炭化改性,以提高ACFs的导电率,系统地研究了炭化温度对ACFs微观形貌、结晶度、孔结构和超级电容器性能的影响。结果显示:经过1 200℃炭化处理的ACFs(ACFs~(-1)200)电极具有优异的电化学性能,在0.1 A·g~(-1)电流密度下比容量高达204 F·g~(-1),1 000次循环后电容保持率达到97.0%;且电流增至20 A·g~(-1)时依然具有高比容量(149 F·g~(-1)),表明ACFs~(-1)200电极相比于未炭化的ACFs,其导电率、大电流密度下的比容量、循环保持率均显著提高。
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| 关 键 词： | 活性炭纤维 结晶度 孔结构 炭化 超级电容器 |
| 收稿时间： | 2018/2/5 0:00:00 |
| 修稿时间： | 2018/4/11 0:00:00 |
Effect of Carbonization on the Structure and Supercapacitive Performance of Pitch-Based Activated Carbon Fibers |
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| ZHANG Ye-Qiong,CONG Ye,ZHANG Jing,LI Xuan-Ke,DONG Zhi-Jun and YUAN Guan-Ming.Effect of Carbonization on the Structure and Supercapacitive Performance of Pitch-Based Activated Carbon Fibers[J].Chinese Journal of Inorganic Chemistry,2018,34(8):1430-1436. |
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| Authors: | ZHANG Ye-Qiong CONG Ye ZHANG Jing LI Xuan-Ke DONG Zhi-Jun and YUAN Guan-Ming |
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| Institution: | Wuhan University of Science and Technology, College of Chemical Engineering, Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, Wuhan 430081, China,Wuhan University of Science and Technology, College of Chemical Engineering, Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, Wuhan 430081, China,Wuhan University of Science and Technology, College of Chemical Engineering, Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, Wuhan 430081, China,Wuhan University of Science and Technology, College of Chemical Engineering, Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, Wuhan 430081, China;Hunan University, Hunan Province Key Laboratory of Advanced Carbon Materials and Appliced Technology, Changsha 410082, China,Wuhan University of Science and Technology, College of Chemical Engineering, Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, Wuhan 430081, China and Wuhan University of Science and Technology, College of Chemical Engineering, Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, Wuhan 430081, China |
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| Abstract: | |
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| Keywords: | activated carbon fibers crystallinity pore structure carbonization supercapacitor |
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