2014
DOI: 10.1021/la5026679
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Validity of the t-plot Method to Assess Microporosity in Hierarchical Micro/Mesoporous Materials

Abstract: The t-plot method is a well-known technique which allows determining the micro- and/or mesoporous volumes and the specific surface area of a sample by comparison with a reference adsorption isotherm of a nonporous material having the same surface chemistry. In this paper, the validity of the t-plot method is discussed in the case of hierarchical porous materials exhibiting both micro- and mesoporosities. Different hierarchical zeolites with MCM-41 type ordered mesoporosity are prepared using pseudomorphic tran… Show more

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Cited by 281 publications
(209 citation statements)
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“…Nonetheless, pore size remains constant after Ce impregnation for the MCM-41 indicating that these species will be also located on the external surface of the material [35][36][37] . 38 that the application of t-plot method should be used with caution when dealing with small mesopores diameters (namely, MCM-41).…”
Section: Catalysts Characterizationmentioning
confidence: 99%
“…Nonetheless, pore size remains constant after Ce impregnation for the MCM-41 indicating that these species will be also located on the external surface of the material [35][36][37] . 38 that the application of t-plot method should be used with caution when dealing with small mesopores diameters (namely, MCM-41).…”
Section: Catalysts Characterizationmentioning
confidence: 99%
“…The thickness of the adsorbed layer can be evaluated experimentally with a non-porous silica [31] or less accurately calculated from different formula as De Boer equation:…”
Section: Characterization Of the Mesoporosity In Hierarchical Silicamentioning
confidence: 99%
“…The pore size distribution was calculated by the BarretteJoynereHalenda (BJH) method using the adsorption branch [53]. Microporous volumes were calculated using the corrected t-plot method developed by Galarneau et al [56] X-ray diffraction (XRD) patterns were recorded with a Goniometer type D-500 Simens equipped with CuKa radiation (40 kV, 40 mA). Low Resolution Transition Electron Microscopy (LR-TEM) was performed on a Libra Zeiss electron microscope at 120 kV.…”
Section: Characterizationmentioning
confidence: 99%
“…It should be noted that in the absence of surfactant during the templating process (HY-NaOH) a nonporous material is obtained. Microporous volumes were deduced by calculating the thickness of the adsorbed nitrogen layer on the surface (t-plot method) and using a correction factor indicated by Galarneau et al [56] (Fig. 3B).…”
Section: Mesoporous Y Zeolite By Ionic Liquid Based Surfactant Templamentioning
confidence: 99%