Pore force fields in carbon material and their interaction with gas molecules

Abstract

It was shown that a pore in a solid has a force field that acts on molecules from the surrounding gas phase. The axial and radial distributions of forces were studied. The study showed that forces parallel to the pore axis operate at the entrance to and the exit from the pore. These forces can either impede or facilitate the entering of gas molecules into the inner space. Forces that have the radial direction act in the pore space and can either retain gas molecules on its central axis or increase the density of the gas in the space adjacent to pore walls. The influence of these forces alter the velocity distribution of gas filtration in the pore, thus leading to the situation that gas transport is realized along the walls under certain conditions. Equipotential field lines were obtained whose general view gives a clear illustration of the distribution of the field in the pore and in the adjacent environment.