Characteristics of surface area in non-graphitizing-type carbons

✍ Scribed by H. Teranishi; T. Ishikawa; H. Honda

• Publisher: Elsevier Science
• Year: 1969
• Tongue: English
• Weight: 339 KB
• Volume: 7
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(69)90026-8

✦ Synopsis

Zhan~ys in the specific surface area of two graphitizing-t)pe carbons and limr non-graphltlzing-type carbons were followed by measuring the values of' surfact areas estimated from r&rogen adsorption (S,J at 77°K and carbon dioxide adsorption (.S& at 195°K as a function of heat treatment temperature (HTT). Both Su, and S,.,,,, in general, increase with increase of I1TT in the tower HT'T region, show a maximum or a plateau in the intermediate HTI' region and decrease to ne&ibty small values in the higher HTT region. The graphitizing-type and norl-graphltlzing-t~~'t' c-arhotls arc distinguished from one another by the sorption behavior-of nitrogen and carbon dioxide, and the variation of Scoo/S~2 with HTT. Moreover, the non-graphitizin~-t~pr carbons may be divided into two subgroups according to the values of SC-02/SX2 111 thr specified HTT range around 700"(:.