N2 and CO2 adsorption on activated carbon fibres prepared from Nomex chars

被引：0
|
作者：
López, MCB [1 ]
Martínez-Alonso, A [1 ]
Tascón, JMD [1 ]
机构：
[1] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain
来源：
CARBON | 2000年 / 38卷 / 08期
关键词：
activated carbon; adsorption; X-ray diffraction; porosity;
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Activated carbon fibres were obtained by pyrolysis followed by CO2 activation of Nomex [poly (m-phenylene isophtalamide)] polymeric fibres in their crystalline form. The materials obtained were characterised by N-2 adsorption (77 K), CO2 adsorption (273 K) and XRD. They show BET surface areas up to 1200 m(2) g(-1), and they are essentially microporous. The pore size distribution is narrower than using Kevlar as precursor. This feature can be related with the degree of crystallinity obtained with the corresponding chars. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1177 / 1182
页数：6
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