Template synthesis and characterization of ordered mesoporous carbons from asphaltene
Template synthesis and characterization of ordered mesoporous carbons from asphaltene
复制标题
沥青质有序介孔碳的模板合成及表征
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Yu Gui-hong
中科院分区：
文献类型：
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作者：
Li Jun-ning;Mang Yan;Qiu Jie-shan;Zhou Ying;Yu Gui-hong
以沥青质为原料，采用模板碳化法合成了有序介孔炭。通过扫描电镜、透射电镜、X射线衍射、N2吸附和热重分析对OMC材料进行了研究。结果表明，所制备的OMC材料具有石墨骨架约束的有序结构，是模板的反向复制，具有较高的比表面积（562 m2/g）、较大的孔容（0.57cm3/g）和以3.57nm为中心的窄孔径分布。OMC在300℃的空气中结构稳定，具有良好的热稳定性。电导率测量表明，OMC材料具有0.16Ω·cm的平均电阻。
Ordered mesoporous carbons (OMCs) were synthesized from asphaltene using a template carbonization method. The OMC material was studied by scanning and transmission electron microscopy, X-ray diffraction, N2 adsorption and thermal gravimetric analysis. Results show that the as-obtained OMC material with graphitic framework-confined ordered structure is a reverse replication of the template, which has a relatively high surface area of 562m2/g,large pore volume of 0.57 cm3/g and narrow pore size distribution centered at 3.57nm. The structure of the OMC is stable at 300℃ in air, showing good thermal stability. Electrical conductivity measurements show that the OMC material has an average electrical resistance of 0.16Ω·cm.