Abstract
Objectives:In this study, We developed pilot-scale bipolar-electrochemical generator (or bipolar-electrolyzer) for generating hydrogen peroxide (H2O2). By comparing H2O2 concentration and generation efficiency of H2O2 according to structure and arrangement of anode/cathode spacer, the structure and arrangement of spacer have been optimised for high H<sub>2</sub>O<sub>2</sub> concentration and generation efficiency. Methods:The concentration and generation efficiency of H2O2 were evaluated by changing the width of the channel supporter in anode/cathode spacer and we optimised the arrangement of anode/cathode spacer in electrochemical generator. Additionally, we also evaluated the efficiency of H<sub>2</sub>O<sub>2</sub> generation with different concentration catholyte (Na<sub>2</sub>SO<sub>4</sub>).Results and Discussion:The electrochemical H<sub>2</sub>O<sub>2</sub> generator applied anode/cathode supporter with narrow channel supporter showed high H<sub>2</sub>O<sub>2</sub> concentration of 2023.83 mg/L. Electrochemical H<sub>2</sub>O<sub>2</sub> generator with N-C type spacer (anode: no channel supporter, cathode: channel supporter) showed the highest H<sub>2</sub>O<sub>2</sub> concentration (2295.95 mg/L) and H<sub>2</sub>O<sub>2</sub> generation efficiency (86.87%). also, we observed that the electrolyzer with 20 PSU has higher H<sub>2</sub>O<sub>2</sub> concentration (4217.74 mg/L) and generation efficiency (74.80%).Conclusions:As a results, We generated H<sub>2</sub>O<sub>2</sub> with high concentration and high generation efficiency by optimising structure and arrangement of spacer in electrochemical H<sub>2</sub>O<sub>2</sub> generator. Also, We concluded that the developed bioplar-electrochemical generator in our study could be applied to the real industry.
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call