Use of X-ray Tomography for the Experimental Verification of a Mathematical Model for the Recovery of Cu and Cd in a Flow-By Porous Electrode Reactor.

Abstract

In this work a mathematical model for a flow-by electrochemical reactor operating galvanostatically for the Cu and Cd electrodeposition and hydrogen evolution reaction (HER) has been proposed. X-ray computed tomography was used to measure experimental metallic distributions. Good agreement was found between the experimental measurements and model predictions for conversion, current efficiencies, electrode potential and metallic deposit distributions. Differences were observed between experimental results and model predictions and were attributed to a change in Cd electrodeposition and HER kinetics.