Preparation of activated carbon cloth from viscous rayon -: Part IV.: Chemical activation

被引:71
作者
Huidobro, A [1 ]
Pastor, AC [1 ]
Rodríguez-Reinoso, F [1 ]
机构
[1] Univ Alicante, Dept Quim Inorgan, Alicante 0308, Spain
关键词
carbon cloth; chemical treatment; adsorption; thermal analysis (DTA and TGA); mechanical properties;
D O I
10.1016/S0008-6223(00)00131-7
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
The chemical activation of viscous rayon fabric was carried out by impregnation with solutions of different chemicals (NH4Cl, AlCl3, ZnCl2, CuCl2, FeCl3, H3PO4 or Na2HPO4), followed by carbonisation in an inert atmosphere. Impregnation modifies the pyrolysis of the precursor. favouring dehydration over depolymerisation, thus resulting in larger yield in respect to carbonisation of the unimpregnated fabric. The effect of each impregnant on yield, flexibility, strength and porosity of the resulting carbon cloth is analysed. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:389 / 398
页数:10
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