Unraveling the argon adsorption processes in MFI-type zeolite

E. García-Pérez, J. B. Parra, C. O. Ania, D. Dubbeldam, T. J.H. Vlugt, J. M. Castillo, P. J. Merkling, Sofia Calero

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50 Citations (Scopus)

Abstract

The understanding of adsorption isotherms is important for the solution of a large class of industrial problems, many of which are of current research interest. The existence of stepped adsorption isotherms is often observed in some particular adsorption processes, being a distinction of mesoporous materials reflecting capillary condensation effects. However, such singularity is less observed at very low relative pressures. For instance, the presence of a substep on the argon adsorption isotherm of MFI at cryogenic temperature has been corroborated with a variety of experimental studies, but its origin is still unclear, and the interpretations are even contradictory. In this work, a new insight into this process is proposed by a combined approach using both experiments and molecular simulations.

Original languageEnglish
Pages (from-to)9976-9979
Number of pages4
JournalJournal of Physical Chemistry C
Volume112
Issue number27
DOIs
Publication statusPublished - 10 Jul 2008
Externally publishedYes

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