| 氧化程度对微细鳞片可膨胀石墨结构及膨胀性的影响 |
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| 引用本文： | 鲜海洋,彭同江,孙红娟.氧化程度对微细鳞片可膨胀石墨结构及膨胀性的影响[J].无机化学学报,2013,29(18). |
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| 作者姓名： | 鲜海洋 彭同江 孙红娟 |
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| 作者单位： | 西南科技大学固体废物处理与资源化教育部重点实验室, 绵阳 621010;西南科技大学矿物材料及应用研究所, 绵阳 621010;西南科技大学固体废物处理与资源化教育部重点实验室, 绵阳 621010;西南科技大学矿物材料及应用研究所, 绵阳 621010;西南科技大学固体废物处理与资源化教育部重点实验室, 绵阳 621010;西南科技大学矿物材料及应用研究所, 绵阳 621010 |
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| 基金项目： | 国家自然科学基金（No.41272051）和西南科技大学博士基金（No.11ZX7135）资助项目。 |
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| 摘 要： | 以平均粒径为19.71μm的天然微细鳞片石墨为原料，通过化学氧化法制备了具有不同氧化程度的可膨胀石墨，采用XRD、FTIR、Raman、SEM等对可膨胀石墨的结构与膨胀性进行了表征。结果表明：当氧化程度较低时制得的微细鳞片可膨胀石墨由石墨、石墨层间化合物和氧化石墨三相组成；随着氧化程度的增加，氧化石墨相含量与可膨胀石墨结构无序程度逐渐增高，石墨层间化合物相含量先增加后减少，石墨相含量则逐渐降低；氧化促使HSO4-或SO42-插入石墨层间，插入层间的HSO4-或SO42-量是决定可膨胀石墨膨胀容积的关键因素，制备的微细鳞片膨胀石墨的膨胀容积可达65.9mL·g-1。
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| 关 键 词： | 氧化程度 微细鳞片石墨 可膨胀石墨 结构 膨胀性 |
| 收稿时间： | 5/7/2014 12:00:00 AM |
Effect of Oxidation Degree on Structure and Expansion Performance of Expandable Fine Graphite |
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| XIAN Hai-Yang,PENG Tong-Jiang and SUN Hong-Juan.Effect of Oxidation Degree on Structure and Expansion Performance of Expandable Fine Graphite[J].Chinese Journal of Inorganic Chemistry,2013,29(18). |
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| Authors: | XIAN Hai-Yang PENG Tong-Jiang and SUN Hong-Juan |
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| Institution: | Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Ministry of Education, Mianyang, Sichuan 621010, China;Institute of Mineral Materials & Application, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China;Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Ministry of Education, Mianyang, Sichuan 621010, China;Institute of Mineral Materials & Application, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China;Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Ministry of Education, Mianyang, Sichuan 621010, China;Institute of Mineral Materials & Application, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China |
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| Abstract: | |
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| Keywords: | oxidation fine graphite expandable graphite structure expansion performance |
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