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Chromatographia

, Volume 51, Issue 7–8, pp 455–460 | Cite as

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

  • A. R. Mastrogiacomo
  • E. Pierini
Originals

Summary

A new graphitized carbon black (Carbograph 5) with a specific surface area (560 m2 g−1) 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 (C2−C6). 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.

Key Words

Gas chromatography Graphitized carbon black Adsorbents Thermodynamic data 

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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 2000

Authors and Affiliations

  • A. R. Mastrogiacomo
    • 1
  • E. Pierini
    • 1
  1. 1.Istituto di Scienze Chimiche “Fabrizio Bruner” dell’Università degli Studi di UrbinoUrbinoItaly

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