Comparison of heterogeneous pore models QSDFT and 2D-NLDFT and computer programs ASiQwin and SAIEUS for calculation of pore size distribution |
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Authors: | A. M. Puziy O. I. Poddubnaya B. Gawdzik M. Sobiesiak |
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Affiliation: | 1.Institute for Sorption and Problems of Endoecology,NAS of Ukraine,Kiev,Ukraine;2.Maria Curie-Sk?odowska University,Lublin,Poland |
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Abstract: | The pore size distributions (PSD) of selected carbons were calculated from their nitrogen adsorption isotherms using both the QSDFT model implemented in ASiQwin version 3.0 software (Quantachrome Instruments) and 2D-NLDFT model implemented in SAIEUS software (Micromeritics). The results showed that both the QSDFT and the 2D-NLDFT methods give similar PSDs despite the different methods for accounting for the heterogeneity of the carbon adsorbent. The characteristic features of the methods and software were discussed and possible improvements were proposed. |
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