A kinetic study of catalytic graphitization of hard carbon

✍ Scribed by C. Yokokawa; K. Hosokawa; Y. Takegami

• Publisher: Elsevier Science
• Year: 1967
• Tongue: English
• Weight: 556 KB
• Volume: 5
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(67)90024-3

✦ Synopsis

The course of catalytic graphitization of hard carbon was studied kinetically. Carbons produced at 800°C from divinyl benzene polymer, Amberlite IRC-50 and furfural-furan resins with added cupric oxide were heat treated at temperatures between 1450 and 1525°C for 30-180 min. Graphitization proceeded abruptly up to a certain degree (d=3*36~3*37 A) and the amount of highly graphitized material gradually increased according to the first order rate equation. Amberlite IRC-50 carbon was most easily graph&red, while divinyl benzene and furfural-furan carbons correspondingly increased in their resistance to graphitization. The energy of activation of the processes for Amberlite IRC-50 and divinyl benzene polymer was approximately 100 kcal per mole and that for fur&al-furan resin somewhat higher. It was assumed that copper cleaved the cross-linking carbon-carbon bonds to accelerate graphitization.