在850℃,使用金属钠对活性炭进行石墨化,研究金属钠的量对活性炭的石墨化度、表面性质及孔结构的影响;采用X-射线粉末衍射、显微共振拉曼光谱、氮气吸附-脱附法、循环伏安法和交流阻抗法对样品进行测试.结果表明,当活性炭和金属钠的质量比为2∶3时,石墨化活性炭的石墨化度为63.7％,中孔体积为0.36 cm3/g,扫描速率从10 mV/s增至500 mV/s,其电容保持率高达69.4％.
参考文献
| [1] | D. Kalpana;S.H. Cho;S.B. Lee;Y.S. Lee;Rohit Misra;N.G. Renganathan .Recycled waste paper-A new source of raw material for electric double-layer capacitors[J].Journal of Power Sources,2009(2):587-591. |
| [2] | 刘欣梅,代晓东,张建,宋辉,阎子峰.辅助活化法制备超级活性炭的机理[J].新型炭材料,2008(02):133-138. |
| [3] | 邢宝林,谌伦建,张传祥,黄光许,朱孔远.超级电容器用活性炭电极材料的研究进展[J].材料导报,2010(15):22-25. |
| [4] | O. Barbieri;M. Hahn;A. Herzog .Capacitance limits of high surface area activated carbons for double layer capacitors[J].Carbon: An International Journal Sponsored by the American Carbon Society,2005(6):1303-1310. |
| [5] | 徐子颉,吉涛,赵蕾,王玮衍,杨春艳,甘礼华.碳气凝胶的结构重整及其电化学行为[J].物理化学学报,2012(02):361-366. |
| [6] | 徐子颉,吉涛,王玮衍,夏炳忠,马超,甘礼华.一种热解炭在金属钠中的相变[J].物理化学学报,2011(01):262-266. |
| [7] | 王玮衍,徐子颉,池丽琰,吉涛,甘礼华,郝志显,陈龙武.水溶性酚醛树脂为碳源制备碳化硅研究[J].硅酸盐通报,2010(02):300-303. |
| [8] | 付克明,朱虹,路迈西,张勤善.不同煅烧方式对粉煤灰水热合成沸石的影响[J].人工晶体学报,2007(04):943-946. |
| [9] | L.M. Malard;M.A. Pimenta;G. Dresselhaus;M.S. Dresselhaus .Raman spectroscopy in graphene[J].Physics Reports: A Review Section of Physics Letters (Section C),2009(5/6):51-87. |
| [10] | Sadezky A;Muckenhuber H;Grothe H;Niessner R;Poschl U .Raman micro spectroscopy of soot and related carbonaceous materials: Spectral analysis and structural information[J].Carbon: An International Journal Sponsored by the American Carbon Society,2005(8):1731-1742. |
| [11] | Thomas E. Rufford;Denisa Hulicova-Jurcakova;Zhonghua Zhu .Empirical Analysis of the Contributions of Mesopores and Micropores to the Double-Layer Capacitance of Carbons[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2009(44):19335-19343. |
| [12] | Wenfeng Zhang;Zheng-Hong Huang;Gaoping Cao;Feiyu Kang;Yusheng Yang .A novel mesoporous carbon with straight tunnel-like pore structure for high rate electrochemical capacitors[J].Journal of Power Sources,2012(Apr.15):230-235. |
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