期刊文献+

炭化温度对CO_2活化PAN基活性炭纤维微结构的影响(英文) 被引量:22

Effect of carbonization temperature on microstructure of PAN-based activated carbon fibers prepared by CO_2 activation
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摘要 将PAN坝氧化纤维在400℃~900℃炭化,经CO2活化得到一系列活性炭纤维,表征了其比表面、孔容和孔径分布等微结构参数,研究了炭化温度对CO2活化PAN基活性炭纤维微结构的影响。结果表明,炭化温度对活性炭纤维的比表面和孔结构有显著影响,适中的炭化温度(600℃)有利于得到高比表面积、大的孔容和孔径。 A series of activated carbon fibers (ACFs) was prepared by carbonizing pre-oxidized PAN fibers at temperatures ranging from 400 to 900℃ followed by CO2 activation and the effect of carbonization temperature on the porous structure of polyarcylonitrile (PAN)-based ACFs characterized by nitrogen adsorption was investigated. It is found that the porous structure of PAN-ACF depends strongly on the carbonization temperature, and a moderate carbonization temperature ( 600℃ ) is favorable to obtain ACFs with higher specific surface area, larger pore volume and larger pore size.
出处 《新型炭材料》 SCIE EI CAS CSCD 北大核心 2006年第1期14-18,共5页 New Carbon Materials
基金 国家重点基础研究发展计划(2002CB211800) 国家基础研究重大项目前期研究专项(2001CCA05000)。~~
关键词 活性炭纤维 炭化 温度 微结构 Activated carbon fibers Carbonization Temperature Microstructure
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参考文献13

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