Discussion of thermodynamic data obtained by adsorption gas chromatography of hydrocarbons on a new graphitized carbon black with a high specific surface area.

Authors :: Mastrogiacomo, A.
Pierini, E.
Source :: Chromatographia; Apr2000, Vol. 51 Issue 7/8, p455-460, 6p
Publication Year :: 2000
Abstract: A new graphitized carbon black (Carbograph 5) with a specific surface area (560 m<superscript>2</superscript> g<superscript>−1</superscript>) greater than those of commerically available graphitized carbons was studied by gas chromatography to determine the enthalpy, entropy, and free energy of adsorption of a series of alkanes (C<subscript>2</subscript>−C<subscript>6</subscript>). The adsorption properties were also investigated by considering changes in the isosteric heats and entropies of adsorption when a nonpolar stationary phase (squalane) was added to the adsorbent. The data obtained are discussed and compared with literature values for other graphitized carbon blacks. [ABSTRACT FROM AUTHOR]

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