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CONICET Digital
Article . 2014
License: CC BY NC SA
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Distribución de tamaño de poros de materiales mesoporos ordenados de sílice con poros de geometría cilíndrica utilizando el método macroscópico VBS

Authors: Villarroel Rocha, Jhonny; Deicy Barrera; Karim Sapag;

Distribución de tamaño de poros de materiales mesoporos ordenados de sílice con poros de geometría cilíndrica utilizando el método macroscópico VBS

Abstract

En este artículo se muestra el método VBS (Villarroel-Barrera-Sapag) para el cálculo de la PSD de materiales mesoporosos. Es un método macroscópico mejorado que modifica la ecuación de Kelvin utilizada en el método BJH, y considera los mecanismos de condensación y evaporación capilar más aceptados para materiales mesoporosos. En este método se adiciona un término de corrección (fc) a la ecuación de Kelvin original y adicionalmente toma en cuenta el volumen de microporos, en caso de existir, de los MMO. A diferencia de los métodos macroscópicos tradicionales, el método VBS es autoconsistente con los datos experimentales. Se muestran las bases para el desarrollo de este método con el fin de ser aplicado en la obtención de una PSD confiable a partir de datos de isotermas de adsorción-desorción de N2 a 77 K para MMO de sílice (MCM-41 y SBA-15) con geometría de poros cilíndrica.

Fil: Villarroel Rocha, Jhonny. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada ; Argentina

Fil: Deicy Barrera. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada ; Argentina

Fil: Karim Sapag. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada ; Argentina

Country
Argentina
Keywords

ISOTERMAS DE ADSORCIÓN-DESORCIÓN DE N2, ECUACIÓN DE KELVIN, https://purl.org/becyt/ford/1.4, DISTRIBUCIÓN DE TAMAÑO DE MESOPOROS, MATERIALES MESOPOROSOS ORDENADOS, https://purl.org/becyt/ford/1

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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