Electrochemical behaviors in closed bipolar system with three-electrode driving mode

•A closed bipolar cell driven by three-electrode system for the studies of the electrochemical behavior is constructed.•The impacts of the reagents' concentration, electrode size and material on its electrochemical behaviors have been studied.•The experimental and the theoretical results agree with each other very well.•This research could deepen our understanding of bipolar chemistry and be useful for the future c-BPE-based applications.

Here we report the studies on the electrochemical behaviors at a closed bipolar cell which is composed of two separated reaction cells containing a closed bipolar electrode (c-BPE) and its driving electrodes. The influence factors such as the concentration of the reagents, the size and material of the electrodes are studied experimentally and theoretically. And the experimental results fit with the theoretic calculation very well. Significantly, unlike the previous studies focusing on the coupling of the two c-BPE poles, this work also considers the effect of the reaction on the driving electrode on the electrochemical behavior. We believe that this research could deepen our understanding of bipolar chemistry and be useful for the future c-BPE-based applications.