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Characterization of mesoporous region by the scanning of the hysteresis loop in adsorption–desorption isotherms

Toncón-Leal, C. F. ; Villarroel-Rocha, J. ; Silva, M. T. P. ; Braga, T. P. ; Sapag, K.

Adsorption : journal of the International Adsorption Society, 2021-10, Vol.27 (7), p.1109-1122 [Periódico revisado por pares]

New York: Springer US

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Título:
Characterization of mesoporous region by the scanning of the hysteresis loop in adsorption–desorption isotherms
Autor: Toncón-Leal, C. F. ; Villarroel-Rocha, J. ; Silva, M. T. P. ; Braga, T. P. ; Sapag, K.
Assuntos: 13th Brazilian Meeting on Adsorption ; Adsorption ; Chemistry ; Chemistry and Materials Science ; Cobalt oxides ; Connectivity ; Desorption ; Engineering Thermodynamics ; Heat and Mass Transfer ; Hysteresis loops ; Industrial Chemistry/Chemical Engineering ; Isotherms ; Mathematical models ; Pore size distribution ; Scanning ; Surfaces and Interfaces ; Thin Films
É parte de: Adsorption : journal of the International Adsorption Society, 2021-10, Vol.27 (7), p.1109-1122
Descrição: The scanning hysteresis loop provides information about the correlation of the pore network, its connectivity and pore size distribution; nonetheless, this correlation cannot be revealed from the complete isotherm. To analyze the connectivity of the porous network in ordered mesoporous materials modified with iron and cobalt oxides, Ar adsorption–desorption isotherms and their corresponding scanning of the hysteresis loops at three temperatures (65, 77, and 87 K) were measured. Two mathematical models based on the independent domains theory (i.e. Uncorrelated Model (UM) and Partial Correlated Model (PCM)) were applied to adjust the desorption branches in the hysteresis loops associating these results to the connectivity in the porous network and the presence of pore-blocking effects.
Editor: New York: Springer US
Idioma: Inglês

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Characterization of mesoporous region by the scanning of the hysteresis loop in adsorption–desorption isotherms

Toncón-Leal, C. F. ; Villarroel-Rocha, J. ; Silva, M. T. P. ; Braga, T. P. ; Sapag, K.

New York: Springer US

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