✦ LIBER ✦

The enthalpies of immersion of active carbons, in relation to the Dubinin theory for the volume filling of micropores

✍ Scribed by H.F. Stoeckli; F. Kraehenbuehl

Publisher: Elsevier Science
Year: 1981
Tongue: English
Weight: 373 KB
Volume: 19
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(81)90059-2

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✦ Synopsis

It

is shown that an exact expression can be derived from Dubinin's theory, for the enthalpy of immersion of active carbons. It appears that for a given liquid, the specific enthalpy of immersion is a function of the characteristic energy REo of the Dubinin-Astakhov equation. The new relation is illustrated by data obtained for 10 different carbons immersed into benzene and n-heptane at 34°C. Simultaneously. results are presented for the immersion into water, not described by Dubinin's theory, but providing useful complementary information about the chemical state of the surface.

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