Response Surface Methodology for Optimization of Cathode Surface Area and Inter-Electrode Gap in Electro-generation of H2O2

Hydrogen peroxide (H 2 O 2 ) is a strong oxidizing agent, which is widely used in numerous industrial applications. In order to reduce the hazards involved, research has focused on the small-scale on-site production of H 2 O 2 using electrolysis. Therefore, the present study focused on optimization...

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Bibliographic Details
Main Authors: Sandani, Wanniarachchige Paramitha, Premaratne, Malith, Ariyadasa, Thilini U., Premachandra, Jagath K.
Format: Conference Proceeding
Language:English
Subjects:
cathode surface area
Cathodes
Charge coupled devices
electro- generation
Electrochemical processes
hydrogen peroxide
interelectrode gap
Mathematical model
Optimization
Response surface methodology
Surface treatment
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Summary:Hydrogen peroxide (H 2 O 2 ) is a strong oxidizing agent, which is widely used in numerous industrial applications. In order to reduce the hazards involved, research has focused on the small-scale on-site production of H 2 O 2 using electrolysis. Therefore, the present study focused on optimization of the electrolysis using an acidic electrolyte in order to maximize the concentration of electro-generated H 2 O 2 , for use in low pH applications. To this end, response surface methodology (RSM) with central composite design (CCD) was used to develop a mathematical model and to determine optimum process parameters for cathode surface area and the inter-electrode gap. The mathematical model (R 2 = 84.79%) indicated that the cathode surface area has a higher effect on the final concentration of H 2 O 2 as compared to the inter-electrode gap, where the maximum yield of 17.03 mg/L H 2 O 2 was obtained when cathode surface area and inter-electrode gap were 7.44 cm 2 and 1 cm respectively.
ISSN:2325-9418
DOI:10.1109/INDICON49873.2020.9342367