Molecules in the Porous System of Activated Carbon Fibers - Spin Population Control

摘要

The aim of this work is to describe the influence of adsorbed molecules on electronic properties of activated carbon fibers (ACF). Guest molecules of different type, dipolar water molecules and nondipolar CCl₄, were used to analyze the dependence of physisorption forces of pore walls (host-guest interaction) on the localization of spins on ACF graphitic nanoparticles. For each substance the number of localized spins, estimated from electron paramagnetic resonance experiments, was compared to the energy parameter of interaction between guest molecules and pore walls. Control of spin population and potential barriers between nanographitic particles of ACF is important from the point of view of ACF system as a quantum dots matrix.