Application of the Dubinin-Radushkevich and Dubinin-Astakhov equations in the characterization of microporous solids

作者: A. Gil , P. Grange

DOI: 10.1016/0927-7757(96)81455-5

关键词:

摘要: The application of the Dubinin-Radushkevich (DR) and Dubinin-Astakhov (DA) equations to characterization comparison microporous solids has been studied. Nitrogen adsorption isotherms at low relative pressures have measured for a variety solids: four pillared clays (Al-PILC, SiAl-PILC, Ti-PILC Zr-PILC), two zeolites (Y-82 H-ZSM5), activated carbons. Both used obtain potential distributions all samples. show bimodal in both formalisms. These are related micropore size distributions, presence types surfaces micropores is also considered. carbons single-peaked formalisms, but modifications observed.

参考文章(43)
R.Sh Mikhail, Stephen Brunauer, E.E Bodor, Investigations of a complete pore structure analysis joint international conference on information sciences. ,vol. 26, pp. 45- 53 ,(1968) , 10.1016/0021-9797(68)90270-1
M. Jaroniec, R. Madey, X. Lu, J. Choma, Characterization of energetic and structural heterogeneities of activated carbons Langmuir. ,vol. 4, pp. 911- 917 ,(1988) , 10.1021/LA00082A023
H. C. Foley, A. Saito, Curvature and parametric sensitivity in models for adsorption in micropores Aiche Journal. ,vol. 37, pp. 429- 436 ,(1991) , 10.1002/AIC.690370312
Kenneth J Masters, Brian McEnaney, Structural analysis of microporous carbons using the Dubinin―Radushkevich equation Journal of Colloid and Interface Science. ,vol. 95, pp. 340- 345 ,(1983) , 10.1016/0021-9797(83)90193-5
D. Burevski, The application of the Dubinin-Astakhov equation to the characterization of microporous carbons Colloid and Polymer Science. ,vol. 260, pp. 623- 627 ,(1982) , 10.1007/BF01422595
F. Carrasco-Marin, M. V. Lopez-Ramon, C. Moreno-Castilla, Applicability of the Dubinin-Radushkevich equation to carbon dioxide adsorption on activated carbons Langmuir. ,vol. 9, pp. 2758- 2760 ,(1993) , 10.1021/LA00035A002
Andoni Gil, Garbine Guiu, Paul Grange, Mario Montes, Preparation and Characterization of Microporosity and Acidity of Silica-alumina Pillared Clays The Journal of Physical Chemistry. ,vol. 99, pp. 301- 312 ,(1995) , 10.1021/J100001A046
M. S. A. Baksh, R. T. Yang, Model for spherical cavity radii and potential functions of sorbates in zeolites Aiche Journal. ,vol. 37, pp. 923- 930 ,(1991) , 10.1002/AIC.690370615