A New Theory and Its Applications: Fluids in Mesopores

Despite the fact that hysteresis in fluid adsorption in porous material has been known for over a century, the thermodynamic treatment of this phenomenon is still unknown. We propose that we recognize that thermodynamics is not designed to deal with constrained systems and develop a new set of rules to explain their behavior. This suggestion is based on a large number of simulation calculations. In this field, the simulation method has been shown to describe both static and dynamic processes [1]. The newly proposed theory accounts for the occurrence of hysteresis while avoiding inconsistencies. It will also be demonstrated that the theory allows for the simulation of diffusional and convective processes. Convectional transport (nanofluidics) by a unified ansatz without the need for phenomenological parameters to introduce capillary forces (surface or interface tensions). The possibility of practical application is discussed in the study’s second section. The new ideas, it turns out, pave the way for better applications by allowing the use of unique states of matter observed in porous systems. We’ll focus on the possibility of driving a fluid in a pore into negative-pressure states under static conditions. as well as dynamic settings It turns out that states with negative pressure can be controlled in a reproducible manner. Since Torricelli’s time, negative pressure states have been understood in principle, and they have been investigated as experimentally accessible conditions in the literature. Despite this, they have yet to be translated into functional utility, most likely due to the concept of their metastability in macroscopic systems. The topic of metastability has received a lot of attention in the literature. Controlling chemical reactions as well as new routes to efficient separation processes that are difficult to handle using conventional techniques are examples of possible applications.

Author (S) Details

Dr. Harald Morgner
Wilhelm-Ostwald Institute for Physical and Theoretical Chemistry, University Leipzig, 04103 Leipzig, Germany.

View Book :- https://stm.bookpi.org/CACS-V1/article/view/1790

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