| 用粉煤灰制备SiO_2-Al_2O_3气凝胶的研究 |
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| 引用本文： | 陈娜,严云,胡志华. 用粉煤灰制备SiO_2-Al_2O_3气凝胶的研究[J]. 武汉理工大学学报, 2011, 0(2) |
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| 作者姓名： | 陈娜 严云 胡志华 |
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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;西南科技大学先进建筑材料四川省重点实验室; |
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| 基金项目： | 国家科技攻关计划(2006BAF02A24); 西南科技大学重点项目(07XJGZB02) |
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| 摘 要： | 以粉煤灰为原料,采用溶胶-凝胶和常压干燥法制备Si O2-Al2O3气凝胶。采用BET、XRD、IR、SEM等实验手段,对Si O2-Al2O3气凝胶性能进行测试分析。结果表明,最终的二元Si O2-Al2O3气凝胶是由纳米颗粒组成的非晶网络和Al2O3晶体共同构成的纳米多空结构,具有高的比表面积和窄的孔径分布。该法制得的气凝胶平均孔径在9 nm左右,比表面积为115～180 m2/g,热稳定性良好。
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| 关 键 词： | 粉煤灰 溶胶-凝胶 SiO2-Al2O3气凝胶 纳米多孔材料 |
Research of SiO_2-Al_2O_3 Aerogel with Fly Ash |
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| CHEN Na,YAN Yun,HU Zhi-hua. Research of SiO_2-Al_2O_3 Aerogel with Fly Ash[J]. Journal of Wuhan University of Technology, 2011, 0(2) |
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| Authors: | CHEN Na YAN Yun HU Zhi-hua |
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| Affiliation: | CHEN Na1,YAN Yun2,HU Zhi-hua2(1.Key Laboratory for Solid Waste Disposal and Resource of Co-established of Ministry of Education,Southwest University of Science and Technology,Mianyang 621010,China,2.Key Laboratory for Advanced Building Materials of Sichuan Province,China) |
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| Abstract: | The study is on synthesis and properties of SiO2-Al2O3 aerogel,using fly ash as raw materials by sol-gel and atmospheric pressure drying method.The writer carried out the test and analysis on the performance of the SiO2-Al2O3 aerogel with the method of BET,XRD,IR and SEM.The results showed that the final two variables SiO2-Al2O3 aerogel were the amorphous network composed of Nanometer particles and the Nanometer multi-empty structure composed of Al2O3 crystals,which had high specific surface area and narrow... |
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| Keywords: | fly ash sol-gel SiO2-Al2O3 aerogel nano-porous materials |
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