Enhancement of H₂O₂ Production in Modified Electrochemical Reactor Using Synthesized MnO₂ Nanoparticles
نویسندگان
1 Department of Chemical Engineering, College of Engineering, Tikrit University, Saladin, Iraq
2 National School of Engineers of Monastir, Labrotary of Thermal and Thermodynamic of Industrial Processes, Monastir, Tunisia
3 Department of Chemical Engineering, College of Engineering, Tikrit University, Saladin, Iraq
4 Department of Chemical Engineering, National School of Engineering of Gabes, Gabes University, Gabes, Tunisia
5 Department of Petroleum and Gas Refining Engineering, College of Petroleum Processes Engineering, Tikrit University, Saladin, Iraq
doi
10.48309/ajca.2025.474473.1651چکیده
Synthesized MnO2 nanoparticles created a trickling bed electrochemical reactor (TBER) for H2O2 electrogeneration. This reactor has a porous cathode bed made of MnO2 nanoparticles and PTFE as a conductive binder. Cathode beds and electrolytes are needed to run the reactor. Co-precipitation produces MnO2 nanoparticles combined with PTFE to form the cathode bed. The synthesized catalyst was characterized using X-ray diffraction (XRD), Transmission electron microscopy (TEM), Scanning electron microscopy (SEM), and FTIR. This change increases H2O2 concentration by more than twice that of a single cathode bed. The effective mass transfer of oxygen from the gas phase to the electrolyte cathode interface and the uniform distribution of electrolyte and oxygen throughout the cathode bed were thought to increase cathode bed performance. The TBER electrochemically reduced oxygen in concentrated alkaline and acid electrolytes to produce H2O2. H2SO4 acid was more stable as an electrolyte; however, the maximum H2O2 concentration was 16.32 mM at 0.5 M. When using 0.25 M KOH as an electrolyte quickly, a high concentration of 36.56 mM was detected. Therefore, we observed H2O2 generation from the first minute of the reaction until the steady state duration of 15 minutes. Wastewater treatment, CO2 reduction, chemical manufacturing, and desulfurization are prospective commercial uses of the findings
