Abstract
We present a detailed analysis, using simulated data, of the adsorption and desorption in two finite length slit mesopores, one with both ends open to the surroundings and the other with one end closed, to investigate the microscopic behavior of an adsorbate in a confined space. The mesoscopic analysis of the interface separating the gas-like phase and the condensed phase reveals the mechanisms that lead to hysteresis in these two types of pore. The effects of pore width, temperature, and surface strength on these mechanisms are also studied to probe the detailed behavior of the system just before condensation and just after evaporation. In particular, for closed-end pores, we observe the development of a meniscus and the subsequent movement of the developed meniscus in adsorption and desorption. From these observations we are able to explain why adsorption and desorption branches have two distinct sections, slow and fast variations with pressure (corresponding to the two stages (1) developing meniscus and (2) developed meniscus), which have not been recognized in earlier literature.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
