高压物理学报2008，Vol.22Issue(4)：397-401,5.
爆轰裂解法制备纳米石墨粉的吸附性能研究
Property Comparison of Porous Graphite Nanopowders Prepared by Detonation Splitting Technique with Different Acid Content
摘要
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 materials.The difference of the BET surface area among the detonation soot is mainly caused by the pore of which diameter distributes between 3 nm and 7 nm.Moreover,the amount of the pore size at about 4 nm arrived at the maximum after detonation.In addition,the research provides sorption capacity information for application and at the same time it also proves that acid has perfect impact on preparing graphite nanopowders.关键词
纳米石墨粉/吸附/脱附等温线/孔径分布/爆轰技术Key words
graphite nanopowders/adsorption/desorption isotherms/pore size distribution/detonation technique分类
数理科学引用本文复制引用
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[J].高压物理学报,2008,22(4):397-401,5.基金项目
Foundation Item:National Natural Science Foundation(10572034,10602013) （10572034,10602013）
