以酚醛树脂(PF)为炭前驱体,己二酸(DA)为致孔链段,利用聚合物共聚炭化法制备双电层电容器用多孔炭材料:通过红外和热重分析证实己二酸与酚醛树脂发生了化学反应,DA以链段或支链的形式存在于酚醛树脂固化体系中,并在后续炭化过程中热解逸出.氮气吸附分析表明酚醛树脂固化体系中的DA起到了一定的造孔作用,随着DA加入量增加,多孔炭比表面积先增大后减小,当w(PF)/w(DA )=3∶1时所得多孔炭的比表面积为550 cm2/g,孔容为0.27 cm3/g.采用直流充放电法、交流阻抗法和循环伏安法测定以上述多孔炭为电极材料的双电层电容器的电化学性能,结果表明:w(PF)/w(DA)=3:1时制得的多孔炭电极在30％ KOH电解液中比电容为145 F/g,电流密度增大50倍,比电容保持率达到70％.
参考文献
| [1] | 杨骏兵,凌立成,吕春祥,等.二茂铁的添加对酚醛树脂基球形活性炭活化特性以及孔径分布的影响.离子交换与吸附,2000,16(2):155-161. |
| [2] | Hulicova D,Oya A.The polymer blend technique as a method for designing fine carbon materials.Carbon,2003,41(7):1443-1450. |
| [3] | 张琳,刘洪波,李步广,等.PF与PVB共混炭化制备双电层电容器用多孔炭材料的研究.炭素,2005(1):7-13. |
| [4] | Jintawat C,Takuji Y,Sho K,et al.Synthesis of monodisperse carbonaceous beads with ordered mesoporous structure.Carbon,2009,47(3):929-932. |
| [5] | Wu D,Fu R,Zhang Sh,et al.The preparation of carbon aerogels based upon the gelation of resorcinol-furfural in isopropanol with organic base catalyst.Journal of Non-Crystalline Solids,2004,336(1):26-31. |
| [6] | Ozaki J,Endo N,Ohizumi W,et al.Novel preparation method for the production of mesoporous carbon fiber from a polymer blend.Carbon,1997,35(7):1031-1033. |
| [7] | 包丽颖,吴峰,徐斌,等.聚合物共混法制备超级电容器用多孔炭材料.北京理工大学学报,2007,27(9):828-831. |
| [8] | Patel N,Okabe K,Oya A.Designing carbon materials with unique shapes using polymer blending and coating techniques.Carbon,2002,40(3):315-320. |
| [9] | Masanori Y,Miho K,Kazuko I,et al.Nanostructured carbonaceous material with continuous pores obtained from reaction-induced phase separation of miscible polymer blends.Carbon,2004,42(8):1641-1649. |
| [10] | Min H Ch,Ho Y B,In J Ch.The effect of chain length of fexible diacid on morphology and mechanical property of modiled phenolic resin.Polymer,2002,43(16):4437-4444. |
| [11] | Song H K,Sung J H,Jung Y H,et al.Electrochemical porosimetry.Journal of Electrochemical Society,2004,151(3):E102-E109. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%