Hydrogen Production as Alternative Energy Through the Electrolysis Process of Sea Water Originating from Mangrove Plant Areas

Abstract

This research was conducted by utilizing seawater around mangrove forests, namely multi-functional areas in education. One of the objects of research by electrolysis seawater to determine the content of hydrogen gas is one of the renewable energy that has many advantages compared to other renewable energy. One simple method to produce hydrogen gas is by electrolysis of seawater whose source is unlimited. The electrolysis method in this study uses direct electric current or DC (Power Supply) and seawater with an electrolyte volume of 1000 ml, electrolysis time of 2, 4, 6, 8 minute using Copper electrodes (anode) and Aluminum (cathode) selection of cylindrical reactor types volume 1500 ml, operating conditions 36°C and 1 atm. As for the free variables, namely voltages of 5, 10, 15, 20, and 25 volt. With time variations, the results of the study showed that voltage greatly affects the decomposition of seawater into hydrogen gas. The highest hydrogen gas flow rate results can be at a voltage of 20 volts with 8 minutes of 1.8172 cc/sec (6545.51 ml/hour). The electrolysis time study on the decomposition of seawater into hydrogen gas had no significant effect. The electrolysis time of 6 and 8 minutes at a voltage of 20 and 15 volt showed high hydrogen gas results.