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Changes in surface homogeneity of a graphite upon gasification

✍ Scribed by A. Linares-Solano; J. de D. López-González; C. Moreno-Castilla; F. Rodriguez-Reinoso

Book ID
102996007
Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
478 KB
Volume
16
Category
Article
ISSN
0008-6223

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✦ Synopsis

A natural based graphite and the resulting products of its reaction in oxygen at 600°C (burn-offs up to 91.2%) have been studied by nitrogen adsorption at 77 K. Surface area decreases on gasification to about 50% burn-off but for higher burn-offs the surface area increases and for the samples with 91.2% burn-off the value is close to that of the original graphite. The adsorption isotherms of nitrogen at 77 and 90 K on the 91.2% burn-off sample exhibit a crossing point which corresponds approximately to the V, (B.E.T.) value. The changes in surface homogeneity on gasification have been related to the texture of the original graphite.

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