The Effect of NaOH and LaCoO 3 Perovskite on HHO Gas Production Rate

• Published in: Journal of physics. Conference series Vol. 2344; no. 1; p. 12003
• Main Authors: Mustaqim, I Z, Maulana, D W
• Format: Journal Article
• Language: English
• Published: 01.09.2022
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/2344/1/012003

Utilization of renewable energy such as solar energy, wind energy, require a technology to store energy since production and consumption energy isn’t always at the same time. Hydrogen appears as an alternative solution to store energy since it has high energy density and can be easily obtained from water by electrolysis reaction. Electrolysis produces hydrogen and oxygen gas and when it combines forming HHO gas. There are many factors that can influence HHO gas production, such as electrolyte concentration and utilization of catalyst. In this research, we observed the effect of NaOH electrolyte concentration and catalyst LaCoO 3 concentration toward production of HHO gas. Catalyst LaCoO 3 is synthesized by sol-gel method with calcination over 900°C, however particle of LaCoO 3 that formed still submicron-sized. To obtain catalyst LaCoO 3 that disperse in electrolyte suspension, it is treated by beads milling process to minimize the size of particle. Experiment result showed that increasing NaOH electrolyte concentration will affect to increment of HHO gas production. The most optimal HHO gas production from all variation of catalyst LaCoO 3 is when using 3 M of NaOH electrolyte concentration. However, addition of catalyst LaCoO 3 in suspension electrolyte will drop HHO gas production.