Surface fractal dimensions of micropore walls of active carbons
β Scribed by Ryoichi Tsunoda
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 300 KB
- Volume
- 152
- Category
- Article
- ISSN
- 0021-9797
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Mercury porosimetry has been used to characterize the macroporosity of several carbon materials activated by steam or carbon dioxide and their surface fractal dimension is determined. The first part is devoted to the analysis of the differential volume versus pressure curves in order to distinguish
Three different types of carbon precursor-mesophase microbeads, preoxidized polyacrylonitrile (PAN) fibres, and phenolic fibres-have been carbonized in argon at 900Β°C and thereafter activated with carbon dioxide at the same temperature. Physical adsorption of nitrogen at -196Β°C and of carbon dioxide