Evaluation Of Electrolyte Effectiveness in HHO Gas Production: A Systematic Analysis Of KOH, NaOH and NaHCO3 Concentrations

Abstract

The effectiveness of different electrolytes in HHO gas production during electrolysis is not well understood, which complicates the selection of the most efficient electrolyte. This study aimed to systematically evaluate and compare the performance of common electrolytes (KOH, NaOH and NaHCO3) to identify the most efficient one. The study evaluated the effectiveness of KOH, NaOH, and NaHCO3 as electrolytes for HHO gas production during electrolysis. Using the STWEG-M1 Oxyhydrogen Gas Generator, gas output was measured at concentrations from 0.0125 M to 0.250 M via water displacement. ANOVA revealed significant differences (p < 0.05), with KOH yielding the highest gas volume (245.7 mL at 0.250 M), followed by NaOH (180.6 mL), while NaHCO3 was least effective (20.0 mL). Results confirmed that increasing electrolyte concentration enhanced electrolysis efficiency by improving ion availability and charge transport, highlighting the importance of electrolyte selection in optimising performance.