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化工新型材料  2019, Vol. 47 Issue (3): 143-148    
  科学研究 本期目录 | 过刊浏览 | 高级检索 |
活性炭纤维的表面改性及其电化学性能研究
李鹏1,马晓晓1,2,赵理栋1
1.太原工业学院材料工程系,太原030008;
2.中北大学材料科学与工程学院,太原030051
Study on surface modification of activated carbon fiber and electrochemistry
Li Peng1,Ma Xiaoxiao1,2,Zhao Lidong1
1.Department of Materials Enginnering,Taiyuan Institute of Technology,Taiyuan 030008;
2.Materials Science and Engineering School,North University of China,Taiyuan 030051
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摘要 用质量分数65%的浓硝酸分别浸渍炭化前和炭化后的蚕茧,然后在不同温度条件下进行热处理,得到改性活性炭纤维材料。利用低温氮气吸附-脱附仪、傅里叶变换红外光谱仪、扫描电子显微镜和透射电子显微镜对改性前后活性炭纤维材料的孔结构和电化学性能进行分析表征。用循环伏安、交流阻抗和恒流充放电等测试方法研究了活性炭纤维电极材料的炭化温度和炭化顺序对中孔炭孔结构及电化学性能的影响。结果表明:随着炭化温度的升高,活性炭纤维电极材料比表面积和孔容逐渐增加;炭化温度为600℃时,采用先炭化后吸附方法制备的活性炭纤维电极材料比电容可以达到124.56F/g,比先吸附后炭化制备的样品比电容(82.69F/g)提高了约51%。
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李鹏
马晓晓
赵理栋
关键词:  活性炭纤维  表面改性  电化学性能    
Abstract: The effect of properties of porous carbon fibre on electrochemical performance of supercapacitor were studied.The materials were obtained by dipping the natural cocoon (with and without carbonization treatment) using 65% nitric acid solution,following by thermal treatment under the different temperature.The pore structure and surface chemical properties of modified electrode materials were characterized by nitrogen adsorption/desorption,FT-IR,SEM and TEM.The electrochemical performance of composites was examined by constant current charge-discharge,cyclic voltammetry and electrochemical impedance spectroscopy.The results showed that with the increase of temperature,the specific surface area and pore volume increased gradually,and the average pore size decreased.When the carbonization temperature was 600℃,the specific capacitance of carbon fiber can reach as high as 124.56F/g compared to 82.69F/g that of first carbonized sample,increasing by of 51%.
Key words:  activated carbon fiber    surface modification    electrochemical performance
               出版日期:  2019-03-20      发布日期:  2019-03-20      期的出版日期:  2019-03-20
基金资助: 山西省青年科技基金(2015021072);太原工业学院青年学术带头人(TITXD201403);北化集团青年科技创新专项(QKCZ201635);国家大学生创新基金(201614101004)
作者简介:  李鹏(1981-),男,副教授,主要从事新型炭材料研究与开发。
引用本文:    
李鹏,马晓晓,赵理栋. 活性炭纤维的表面改性及其电化学性能研究[J]. 化工新型材料, 2019, 47(3): 143-148.
Li Peng,Ma Xiaoxiao,Zhao Lidong. Study on surface modification of activated carbon fiber and electrochemistry. New Chemical Materials, 2019, 47(3): 143-148.
链接本文:  
http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2019/V47/I3/143
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