一步法合成具有二级孔道的有序介孔碳材料及其超电容性能研究(2)

3 结论

采用一步法合成具有二级孔道结构的介孔碳材料,BET比表面积达1657·6m2·g-1,

孔径基金项目：省高校研究生科技创新计划(BCXJ06-13);江苏省自然科学基金(BK2006195)

作者简介：廖书田(1984-),男,硕士研究生。

分布主要在2·5nm与6nm处。并以其为超级电容器电极材料,研究了其在KOH溶液中的超电容性能。由于这种碳材料具有很高的比表面积,适当的孔径分布,从而有着比一般介孔碳材料更优良的超级电容器电化学性能。该方法简单且成本较低,有利于实现产业化,因而在电极材料方面有着潜在的应用价值。

从图3可以看出,表面疏水性气相白炭黑增强的硅橡胶海绵材料的泡孔平均直径较小,孔隙率较低,闭孔结构较多;表面疏水性沉淀法白炭黑增强的硅橡胶海绵材料的泡孔平均直径较大,孔隙率较高,开孔结构较多;沉淀法白炭黑增强的硅橡胶海绵材料的泡孔平均直径较小,孔隙率较高,有较多的开孔结构。海绵材料的孔隙率高、开孔结构多有利于降低海绵材料的压缩应力松弛。

3 结论

(1)表面疏水性处理改善了白炭黑在硅橡胶基体中的分散均匀性。

(2)表面疏水处理改善了白炭黑与硅橡胶的相容性,提高

了胶料的可塑性,有利于胶料发泡,使硅橡胶海绵的表观密度降低。

(3)沉淀法白炭黑表面疏水处理后,硅橡胶海绵表观密度降低,导致海绵的硬度、拉伸强度、延伸率、压缩应力松弛降低。

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基金项目：省高校研究生科技创新计划(BCXJ06-13);江苏省自然科学基金(BK2006195)

作者简介：廖书田(1984-),男,硕士研究生。