Effect of alkali metal salt on the macropore structure of rayon-based activated carbon fibers

被引：0

作者：

Zhang Zhi-hai ^{[1
]}

Wu Qi-lin ^{[2
]}

Cai Ze-tian ^{[1
]}

Yan Cheng ^{[1
]}

Song Hua-yi ^{[1
]}

Pan Ding ^{[2
]}

机构：

[1] Donghua Univ, Sch Mat Sci & Eng, Shanghai 200051, Peoples R China

[2] Donghua Univ, State Key Lab Modificat Synthet Fibers & Polymer, Shanghai 200051, Peoples R China

来源：

NEW CARBON MATERIALS | 2009年 / 24卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Rayon-based activated carbon fibers; Activation; Macropore; Specific surface area;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Macroporous Rayon-based activated carbon fibers (ACFs) were produced from Rayon precursors impregnated with alkali metal salt and Lewis acid followed by chemical activation or water vapor activation. The effect of pretreatment conditions such as the concentration of alkali metal salt and impregnation time on the properties of the resultant ACFs were investigated by scanning electron microscopy and physical adsorption. Results showed that the pore sizes and their distribution could be controlled by the concentration and impregnation time of the alkali metal salt. A novel ACF with abundant macropores and micropores and with high specific surface area was obtained by an optimum pretreatment with alkali metal salt.

引用

页码：265 / 269

页数：5