以针状焦生焦为原料,通过KOH化学活化法,在不同活化条件下制备出一系列高比表面积活性炭,并对这些活性炭进行了孔结构表征.而后以30 % KOH溶液为电解液,测试了由所获活性炭制备的一系列电极的电双层电容性能.结果表明:在碱炭比7:1、活化温度850 ℃时,所制活性炭的BET比表面积为2 728 m2/g,孔容为2.14 cm3/g,统计平均孔径为4.4 nm,大中孔孔容占总孔孔容约50 %.该活性炭电极的比电容达305 F/g,有相对较高的能量密度、良好的功率特性以及双电层电容特性.
参考文献
| [1] | 孟庆函,李开喜,宋燕,吕春祥,凌立成.石油焦基活性炭电极电容特性研究[J].新型炭材料,2001(04):18-21,26. |
| [2] | 何月德,刘洪波,张红波.活化剂用量对无烟煤基高比表面积活性炭电容特性的影响[J].新型炭材料,2002(04):18-22. |
| [3] | 文越华,曹高萍,程杰,杨裕生.纳米孔玻态炭-超级电容器的新型电极材料I. 固化温度对其结构和电容性能的影响[J].新型炭材料,2003(03):219-224. |
| [4] | 张拴勤;王珏;朱基千 等.用碳气凝胶作电极材料制作双电层电容器[J].功能材料与器件学报,1998,4(04):263-267. |
| [5] | 李文翠,胡浩权,朱玉东,朱盛维.常压干燥制备炭气凝胶及其电化学行为的研究[J].新型炭材料,2005(03):217-222. |
| [6] | 王芙蓉,李开喜,吕春祥,吕永根,李强,李建刚,孙成功.酚醛树脂基活性炭微球的电化学性能研究Ⅰ.酚醛树脂基微球制备过程的研究[J].新型炭材料,2005(01):58-62. |
| [7] | 张建宇,曾效舒,蔡结松.基于碳纳米管的双电层电容器[J].南昌大学学报(工科版),2002(03):13-15. |
| [8] | 刘辰光,方海涛,王大伟,李峰,刘敏,成会明.添加多壁纳米碳管活性炭电极材料的电化学电容特性[J].新型炭材料,2005(03):205-210. |
| [9] | 刘辰光,刘敏,王茂章,成会明.电化学电容器中炭电极的研究及开发Ⅱ.炭电极[J].新型炭材料,2002(02):64-72. |
| [10] | Elzbieta Frackowiak;Francois Beguin .Carbon materials for the electrochemical storage of energy in capacitors[J].Carbon: An International Journal Sponsored by the American Carbon Society,2001(6):937-950. |
| [11] | 闫修瑾;张元岐;李玉财 等.针状焦的技术进展[J].炭素科技,2002,12(02):38-41. |
| [12] | 孙新,查庆芳,郭燕生,李兆丰.石油焦系超级活性炭的孔结构控制[J].新型炭材料,2005(03):240-244. |
| [13] | Gamby J;Taberna P L;Simon P et al.Studies and characterisations of various activated carbons used for carbon/carbon supercapacitors[J].Journal of Power Souces,2001,101(01):109-116. |
| [14] | Deyang Qu;Hang Shi .Studies of the activated carbons used in double-layer supercapacitors[J].Journal of Power Souces,2002,109(02):403-411. |
| [15] | Chang-Hee Kim;Su-Il Pyun;Heon-Cheol Shin .Kinetics of Double-Layer Charging/Discharging of Activated Carbon Electrodes[J].Journal of the Electrochemical Society,2002(2):A93-A98. |
| [16] | Teng HS.;Hsieh CT.;Chang YJ. .Performance of electric double-layer capacitors using carbons prepared from phenol-formaldehyde resins by KOH etching[J].Carbon: An International Journal Sponsored by the American Carbon Society,2001(13):1981-1987. |
| [17] | DeYang Qu;Hang Shi .Studys of activated carbons used in double-layer capacitors[J].Journal of Power Sources,1998,74(01):99-107. |
| [18] | To-Chi Weng;Hisisheng Teng .Characterrization of high porosity carbon electrodes derived from mesophase pitch for electric double-layer capacitors[J].Journal of the Electrochemical Society,2001,148(04):A368-A373. |
| [19] | Wendy G.Pell;Brian E.Conway .Analysis of power limitations at porous supercapacitor electrodes under cyclic voltammetry modulation and dc charge[J].Journal of Power Sources,2001(1):57-67. |
| [20] | Conway B E;Pell W G .Power limitations of supercapacitor operation associated with resistance and capacitance distribution in porous electrode devices[J].Journal of Power Sources,2002,105(02):169-181. |
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