| 爆轰裂解法制备纳米石墨粉的吸附性能研究(英文) |
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| 引用本文： | 孙贵磊,李晓杰,闫鸿浩,王小红,江德安.爆轰裂解法制备纳米石墨粉的吸附性能研究(英文)[J].高压物理学报,2008,22(4). |
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| 作者姓名： | 孙贵磊 李晓杰 闫鸿浩 王小红 江德安 |
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| 作者单位： | 中国劳动关系学院;大连理工大学工业装备结构分析国家重点实验室; |
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| 基金项目： | National Natural Science Foundation(10572034,10602013) |
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| 摘 要： | 在酸含量不同的原材料中,通过爆轰的方法制备纳米石墨粉,并利用BET方程以及BJ H方法对所得纳米石墨粉进行比表面积和孔径分布分析。分析结果表明,所得爆轰产物中有的比表面积大致为天然鳞片石墨的5.3~9.2倍,而且随酸含量的增大逐渐增大,产物的等温线中存在吸附滞后现象。其中,增大的比表面积主要由分布在3 nm至7 nm之间的孔引起的,而且在爆轰后,孔径4 nm左右的孔,其数量达到最大值。通过对纳米石墨粉的研究,分析了酸在爆轰过程中的积极作用,并为纳米石墨粉的进一步应用提供了结构信息。
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| 关 键 词： | 纳米石墨粉 吸附/脱附等温线 孔径分布 爆轰技术 |
Property Comparison of Porous Graphite Nanopowders Prepared by Detonation Splitting Technique with Different Acid Content |
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| SUN Gui-Lei,LI Xiao-Jie,YAN Hong-Hao,WANG Xiao-Hong,JIANG De-An.Property Comparison of Porous Graphite Nanopowders Prepared by Detonation Splitting Technique with Different Acid Content[J].Chinese Journal of High Pressure Physics,2008,22(4). |
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| Authors: | SUN Gui-Lei LI Xiao-Jie YAN Hong-Hao WANG Xiao-Hong JIANG De-An |
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| Institution: | 1.China Institute of Industrial Relations;Beijing 100037;China;2.State Key Laboratory of Structural Analysis for Industrial Equipment;Department ofEngineering Mechanics;Dalian University of Technology;Dalian 116023;China |
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| Abstract: | N2 adsorption/desorption isotherms and pore diameter distribution of the porous graphite nanopowders,prepared by detonation splitting technique with different acid content in raw materials,were analyzed using Brunauer-Emmet-Teller(BET) equation and Barrett-Joyner-Halenda(BJH) method.The results indicate that there exists hysteresis phenomenon in the product isotherms and the corresponding BET surface area is 5.3~9.2 times of the natural flake graphite which is increasing with the acid content in raw materia... |
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| Keywords: | graphite nanopowders adsorption/desorption isotherms pore size distribution detonation technique |
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