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Pore-size Distributions from Nitrogen Adsorption Revisited: Models Comparison with Controlled-pore Glasses
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SYSNO ASEP 0055169 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Pore-size Distributions from Nitrogen Adsorption Revisited: Models Comparison with Controlled-pore Glasses Title Distribuce porů z adsorpce dusíku; srovnání modelů na porézních sklech Author(s) Šolcová, Olga (UCHP-M) RID, ORCID, SAI
Matějová, Lenka (UCHP-M) RID, ORCID, SAI
Schneider, Petr (UCHP-M) RIDSource Title Applied Catalysis A - General. - : ELSEVIER SCIENCE BV - ISSN 0926-860X
Roč. 313, č. 2 (2006), s. 167-176Number of pages 10 s. Language eng - English Country NL - Netherlands Keywords pore size distribution ; physical adsorption ; standard nitrogen isotherm Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA104/04/2116 GA ČR - Czech Science Foundation (CSF) GD203/03/H140 GA ČR - Czech Science Foundation (CSF) IAA4072404 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40720504 - UCHP-M (2005-2011) Annotation For the comparative study focused on comparison of models for evaluation of pore-size distributions (PSD) from nitrogen physical adsorption isotherms (at 77 K) a series of controlled pore glasses (CPG10) with wide range of nominal pore sizes was used. The absence of micropores in CPG10 samples was proved by comparing adsorption isotherms at low relative pressures, x. This permitted construction of the dependence of adsorbed film thickness, t, on x [t(x)] commonly used in evaluation of textural properties of porous samples. 15 models for cylindrical pore geometry based on the Barret, Joyner and Halenda (BJH) and Broekhoff and deBoer (BdB) approaches with different t(x) dependencies and two evaluation algorithms were compared. Additionally a model which is based on modified non-local density functional theory with density-dependent weights and Tarazona prescription (NLDFT) was applied. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2007
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