| 碳气凝胶的制备及其物性研究 |
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| 引用本文： | 张拴勤,王珏.碳气凝胶的制备及其物性研究[J].同济大学学报(自然科学版),1999,27(4):458-462. |
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| 作者姓名： | 张拴勤 王珏 |
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| 作者单位： | 同济大学物理系!上海，200092 |
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| 摘 要： | 气凝胶是一种新型非晶固态材料，有着广泛的应用前景，为此详细论述了有机气凝胶和碳气凝胶的制备工艺；采用高分辨率航向电镜观察气凝胶的纳米显微结构；喇曼光谱测试结果表明碳气凝胶颗粒内部存在有微晶化结构；低温氮吸附法测试结果表明，有机气凝胶和碳气凝胶的比表面积主要由溶液的配比浓度和催化剂的量决定，后者还受碳化温度的影响。
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| 关 键 词： | 碳气凝胶 纳米网络结构 比表面积 气凝胶 |
Preparation and Characterization of Carbon Aerogels |
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| Zhang Shuanqin,Wang Juue,Zhou Bin.Preparation and Characterization of Carbon Aerogels[J].Journal of Tongji University(Natural Science),1999,27(4):458-462. |
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| Authors: | Zhang Shuanqin Wang Juue Zhou Bin |
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| Abstract: | The Preparing methods of resorcinal formaldehyde(RF) asrogel and carbonized resorcinal formaldehyde (CRF) aerogel were described and the nanoporous structure of RF and CRF aerogel was examined by using tecboques of transmission electron microscopy(TEM). The results of Raman scattering measurement showed us that there exist graphitic ribons within the single partile of CRF aerogel. The specific surface area of RF and CRF aerogel was mainly determined by the stoichiometry of reatants and R/C ratio, and the pyrolisis temperature could also influence the specific surface area of CRF aerogel. |
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| Keywords: | Resoreinal formaldehyde aerogel Carbonized resorcinal formaldehyde aerogel Specific surface area Nanoporous microstructure |
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