A comparison of ASA values determined by different methods

被引：7
|
作者：
Arenillas, A [1 ]
Rubiera, F [1 ]
Parra, JB [1 ]
Pis, JJ [1 ]
机构：
[1] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain
来源：
CARBON | 2002年 / 40卷 / 08期
关键词：
chemisorption; chemical structure; surface properties;
D O I：
10.1016/S0008-6223(02)00128-8
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 active surface area (ASA) values determined by gravimetric, temperature programmed desorption (TPD), and oxygen chemisorption isotherms (OCI) methods were compared. An activated carbon was treated using different temperatures and vacuum to obtain several samples with different textural properties. The gravimetric and TPD methods were carried out in a thermogravimetric analyzer (TGA) and a volumetric apparatus was used for OCI. Results showed that the gravimetric method yielded the highest ASA values.
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页码：1381 / 1383
页数：3
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