Hostname: page-component-7bb8b95d7b-fmk2r Total loading time: 0 Render date: 2024-09-24T07:34:31.319Z Has data issue: false hasContentIssue false
  • English
  • Français

Thermodynamics Of Intercalation of Bromine in Graphite*

Published online by Cambridge University Press:  15 February 2011

S. H. Anderson  and
D. D. L. Chung
S. H. Anderson
Affiliation:
Department of Metallurgical Engineering and Materials Science, Carnegie-Mellon University, Pittsburgh, PA 15213, USA
D. D. L. Chung
Affiliation:
Department of Metallurgical Engineering and Materials Science, Carnegie-Mellon University, Pittsburgh, PA 15213, USA
Get access

Abstract

The thermodynamics of intercalation of bromine in highly oriented pyrolytic graphite had been studied by determining the pressure-temperature equilibrium diagram for stages 2–4. The standard heat and entropy of reaction for the transformation from stage n to stage n−l (n=5, 4, 3) were found to be roughly the same, though the enthalpy of reaction became slightly more negative as the stage number increased. The heat and entropy of formation from pure graphite were thus found to be −10.9 kcal mol-1 Br2 and −30.4 cal mol−1 Br2 K−1 respectively for stage 2, −11.32 kcal mol−1 Br2 and −30.6 cal mol−1 Br2 K−1 respectively for stage 3, and −11.5 kcal mol−1 Br2 and −30.6 cal mol−1 Br2 K−1 respectively for stage 4.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 20: Symposium H – Intercalated Graphite , 1982 , 271
Copyright
Copyright © Materials Research Society 1983

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

*

Research sponsored by the Air Force Office of Scientific Research, Air Force Systems Command, USAF, under Grant No. AFOSR-78–3536. The United States Government is authorized to reproduce and distribute re-prints for Governmental purposes notwithstanding any copyright notation hereon.

References

REFERENCES

1. Salzano, F. J. and Aronson, S., J. Chem. Phys. 43, 149 (1965).Google Scholar
2. Salzano, F. J. and Aronson, S., J. Chem. Phys. 45, 4551 (1966).Google Scholar
3. Salzano, F. J. and Aronson, S., J. Chem. Phys. 46, 4169 (1967).Google Scholar
4. Salzano, F. J. and Aronson, S., J. Chem. Phys. 47, 2978 (1967).Google Scholar
5. Aronson, S., Salzano, F. J. and Bellafiore, D., J. Chem. Phys. 49, 434 (1968).Google Scholar
6. Saehr, D., Bull. Soc. Chim. France 1287 (1964).Google Scholar
7. Hérold, A., Bull. Soc. Chim. France 999 (1955).Google Scholar
8. Hérold, A and Setton, R., Les Carbones, Vol. 2, Masson, Paris (1965) p.606.Google Scholar
9. Saunders, G. A., Ubbelohde, A. R. and Young, D. A., Proc. Roy. Soc. Ser. A, 271, 499 (1963).Google Scholar
10. Sasa, T., Carbon 11, 497 (1973).Google Scholar
11. Bach, B., Bagouin, M., Bloc, F. and Hérold, A., Compte Rend., Acad. Sci. (Series C) 257, 681 (1963).Google Scholar
12. Hennig, G. R., J. Chem. Phys. 20, 1438 (1952).Google Scholar
13. Saunders, G. A., Ubbelohde, A. R. and Young, D. A., Proc. Roy. Soc. Ser. A, 271, 499 (1963).Google Scholar
14. Barthel, C. and Dode, M., Bull. Soc. Chim. 21, 1312 (1954).Google Scholar
15. Ohe, S., Computer Aided Data Book of Vapor Pressures, Data Book Publishing Company, Tokyo, Japan (1976).Google Scholar
16. Ghosh, D. and Chung, D. D. L., unpublished.Google Scholar
17. Salzano, F. J. and Aronson, S., J. Chem. Phys. 45, 2221 (1966).CrossRefGoogle Scholar
18. Lalancette, J. M. and Roussel, R., Can. J. Chem. 54, 3541 (1976).Google Scholar