Abstract
Active carbon-methanol pair appears to be suitable for adsorptive cooling systems. The porous structure of commercial active carbon was modified by potassium hydroxide treatment at 750 °C. Such treatment develops the specific surface area of carbon, changes nature of its surface and significantly increases the heat of wetting. The applied way for active carbon modification gives possibility of modeling porous structure, character surface and heat effects of carbonaceous materials for adsorptive refrigerators.
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Abbreviations
- CwA :
-
specific heat of methanol, J/g °C
- CwC :
-
specific heat of carbon, J/g °C
- E0 :
-
characteristic energy of adsorption, kJ/mol
- Q:
-
heat of wetting, J
- SBET :
-
specific surface, m2/g
- Sme :
-
mesopores surface area, m2/g
- W0 :
-
volume of micropores, cm3/g
- VA :
-
volume of methanol used in the measurement, cm3
- Vp :
-
volume of pores, cm3/g
- dA :
-
density of methanol, g/cm3
- dHK :
-
slit pore width, nm
- mC :
-
mass of carbon, g
- ΔT:
-
increase of temperature, °C
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Buczek, B., Wolak, E. Potassium hydroxide modified active carbon for adsorptive refrigerators. Adsorption 14, 283–287 (2008). https://doi.org/10.1007/s10450-007-9094-5
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DOI: https://doi.org/10.1007/s10450-007-9094-5