Using Moving Electrode Impedance Spectroscopy to Monitor Particle Sedimentation

We have devised a method that employs moving electrode electrochemical impedance spectroscopy to monitor the sedimentation of particles in conductive suspensions. In contrast standard cells with fixed geometry, our cell has flexible design movable counter allows precise adjustment distance. Measuring electrical at various spacings and utilizing linear dependence this function on displacement enables probing small section sample. This considerable advantages when heterogenous liquids (e.g., suspensions) are be analyzed. applied approach test cases obtained following results: (i) demonstrated by experiment bulk conductivity can measured correctly even if particle sediments cover surface. (ii) studied monodisperse suspensions compositions investigated effect concentrations size conductivity. (iii) monitored process and, combining experimental theoretical results, identified correlation between growing mass layer measured. The intended application is crystallization processes ionic for use zeolite synthesis.