CAJ | 학술논문

以三嵌段共聚物F127为模板剂，线性酚醛树脂(PF)为炭前驱体，在F127与PF的质量比mF127∶mPF=1∶1时，利用溶剂挥发诱导自组装制备介孔炭材料，对在不同焙烧温度下制备的介孔材料进行表征，研究焙烧温度对所得介孔材料结构的影响。采用XRD、TEM、N2吸附/脱附等方法对介孔材料的结构进行了表征，研究了焙烧温度对上述介孔炭结构的影响。结果表明：介孔材料的晶面间距随着温度的升高而降低，当焙烧温度为600℃时，介孔材料的骨架从高分子材料转变为炭材料。其比表面积和C/H摩尔比均随着焙烧温度升高而增加，但其孔壁厚度和孔径却随着焙烧温度的升高而降低。孔径大小和孔壁厚度在600℃以后降低的幅度较小，基本上趋于稳定，碳骨架的收缩变得缓慢。随着焙烧温度的升高，其介观结构基本不发生改变。
이삼감단공취물F127위모판제，선성분철수지(PF)위탄전구체，재F127여PF적질량비mF127∶mPF=1∶1시，이용용제휘발유도자조장제비개공탄재료，대재불동배소온도하제비적개공재료진행표정，연구배소온도대소득개공재료결구적영향。채용XRD、TEM、N2흡부/탈부등방법대개공재료적결구진행료표정，연구료배소온도대상술개공탄결구적영향。결과표명：개공재료적정면간거수착온도적승고이강저，당배소온도위600℃시，개공재료적골가종고분자재료전변위탄재료。기비표면적화C/H마이비균수착배소온도승고이증가，단기공벽후도화공경각수착배소온도적승고이강저。공경대소화공벽후도재600℃이후강저적폭도교소，기본상추우은정，탄골가적수축변득완만。수착배소온도적승고，기개관결구기본불발생개변。
Ordered mesoporous carbon had been synthesized through solvent evaporation induced organic-organic self-assembly method (EISA), by using triblock copolymer F127 as template and novalac phenolic resin (mF127∶mPF=1∶1) as carbon precursor. The structure of ordered mesoporous carbon was characterized by X-ray diffraction, transmission electron microscopy and N2 adsorption/desorption measurements. Influence of calcination temperatures on the pore structures of ordered mesoporous carbon was investigated. The results showed that, when the calcination temperatur was 600℃, the skeleton of mesoporous matter was transformed from polymer material to carbon material. As the calcination temperature increased from 400℃to 900℃, the interplanar spacing of ordered mesoporous materials decreased, both the pore wall thickness and pore size reduced, but the surface area and molar ratio of C/H increased. The shrink-age of carbon skeleton became slow above 600℃. The mesostructure retained well with the increase of carbon temperature.