Structural and Kinetic Properties of Graphite Intercalation Compounds
Abstract
The research objective is to gain a basic understanding of (i) the process of intercalation of graphite, (ii) the process of exfoliation of intercalated graphite. Emphasis is given to the kinetic and the structural effects. The first TTT-diagram is reported for the intercalation of graphite. The TTT-curves were C-shaped. Within the temperature range where a given stage was stable, the reaction rate increased with increasing temperature at low temperatures (suggesting a diffusion-controlled mechanism) and decreased with increasing temperature at high temperatures (suggesting an interface-controlled mechanism). Also reported is a TCT-diagram describing the dependence of the intercalation kinetics on the external intercalate concentration (i.e., Br2 concentration in the Br2-CC14 solution containing the sample). In-plane intercalate ordering was observed for the first time in intercalated graphite fibers. This observation was made in stage 1 and stage 2 graphite-IC1 based on Thornel P-100 graphite fibers and prepared by the two-bulb method, in which liquid IC1 was at 95 C while graphite was at 100 C for stage 1 and 130 C for stage 2. Theses. (jhd)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 21, 1982
- Accession Number
- ADA215395
Entities
People
- Deborah D. Chung
Organizations
- Carnegie Mellon University