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J. E. Vargas
J. E. Vargas
Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogota, Colombia
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L. Giraldo
L. Giraldo
Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogota, Colombia
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J. C. Moreno-Piraján
J. C. Moreno-Piraján
Grupo de Investigación en Sólidos Porosos y Calorimetría. Departamento de Química, Facultad de Ciencias, Universidad de los Andes, Bogota, Colombia
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Abstract
Immersion enthalpies of activated carbon samples obtained by activation with steam at temperatures between 600 and 900 °C and activation times between 1 and 10 h were determined. The calorimetric liquids of immersion are CCl4, water, NaOH, and HCl 2 M solutions, and the values of the immersion enthalpies are related to other properties of the activated carbons such as the surface area B.E.T., the micropore volume, the content of acid, and basic surface groups. The highest values for the immersion enthalpies take place for the polar solvent CCl4 and for HCl solution, with values between 4.0 and 75.2 J g−1 and 9.15 and 48.3 J g−1, respectively.
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| Journal of Thermal Analysis and Calorimetry | |
|---|---|
| Language | English |
| Size | A4 |
| Year of Foundation |
1969 |
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| Founder | Akadémiai Kiadó |
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