Electrochemical microreactor and gas-evolving reactions

Present study addresses a problem of utilization of electrochemical microreactors for a system containing gas-evolving electrode reaction. Impact of the interelectrode distance reduction on the local current density distribution is treated in parallel with the influence of a single gas bubble present in the interelectrode space. Subsequently, the bubble size distribution is experimentally determined by flow visualization and image processing. The effect of bubbles on current density distribution is predicted on the base of the numerical simulation results.