合成不同联接链长度(s=2,4,6)和不同烷基链长度(m=8,12,16)两个系列的m-s-m型Gemini阳离子表面活性剂作模板剂,采用氧化石墨烯作基底,正硅酸四乙酯作硅源,利用不同Gemini在碱性条件下组装形成的胶束不同,得到一系列氧化石墨烯基二维介孔二氧化硅复合材料(GOMS).这种材料具有较大的比表面积,可作为模板进一步制备其他多种材料的大比表面积的二维材料.实验结果表明,使用Gemini均可在氧化石墨烯基底上形成二氧化硅介孔,且表面活性剂的联接链和烷基链的长度会影响孔径尺寸,烷基链越长,得到的材料孔径越大,联接链越长,孔径反而越小,通过控制表面活性剂可以得到孔径在一定范围内可控的二维介孔模板,这不仅可以拓宽前驱体材料的选择范围,还可在一定程度上调控材料的应用性能.
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