ISSN:
1573-9171
Schlagwort(e):
coal
;
carbonized coal
;
active carbon
;
X-ray structural data
;
microporous structure
;
chemical composition
;
adsorption of CO2 and H2O
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract The porous structure of active carbon was compared with that of the original mineral coal and its carbonization products. The parameters of the porous structure were calculated from the adsorption isotherms of CO2 (298 K) and H2O (293 K). It was shown that carbonization of the original coal at 1120 K causes changes in the chemical composition, consolidation of the part which is amorphous to X-rays, generation of an ordered defect-containing structure on its basis, an increase in the volume of the micropores, and a decrease in the mean diameter. Activation of the carbonized coal affords a microporous structure with a bimodal size distribution.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00698421
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