Abstract
The production of hydrogen gas as an alternative fuel cell which is a renewable energy, is now in great demand by utilizing waste aluminum beverage cans and added water using NaOH catalyst by electrolysis process. The research method will be carried out by inserting 1 gram of aluminum pieces into a tube and 300 ml of distilled water followed by a NaOH catalyst. Both faucets are opened to release air during the filling process. The faucet is closed when the height of the solution in both tubes is the same. Then turn on the DC flow, then adjust the voltage according to the variable. The filling period is recorded until the specified reaction time. The results of the gas volume obtained are recorded, and the hydrogen obtained is determined by the flame test. From the research it can be concluded that the hydrogen gas produced from the reaction can be identified by means of a flame test. The characteristics of hydrogen gas appear in flames which tend to disappear in the air. At Al 5 gr Weight : 5 M NaOH concentration is the largest volume of hydrogen. The reaction time of 150 minutes will produce a lot of hydrogen gas. The largest volume of hydrogen gas lies at a voltage of 20 volts.
Highlights
Used cans are one example of solid waste that can be recycled
Pieces of used beverage can of variable weight were put into tubes and 300 ml of distilled water followed by NaOH catalyst
Hydrogen gas has the characteristic of a flame that tends to disappear quickly in the air, so that the damage caused by the explosion of hydrogen gas is lighter than the hydrocarbon explosion [13]
Summary
Used cans are one example of solid waste that can be recycled. The rate of recycling aluminum cans is higher than other used packaging materials because of the high value of scrap metals and is accompanied by more highly advanced technology for sorting and recovering. Utilization of aluminum waste from used beverage cans to produce hydrogen gas. One of them is hydrogen produced from aluminum metal which is reacted with water using a NaOH catalyst [7]. Hydrogen gas produced from the water electrolysis process can be reviewed from thermodynamic reviews and catalyst reviews. According to the thermodynamic review, if the electrolysis temperature used is higher, it will affect the reduced electrical energy needed. This can be explained by the thermodynamic characteristics of water molecules that the reaction of molecular separation increases when the temperature increases [9]. Some previous studies, processing used beverage cans into hydrogen gas using catalysts such as sodium hydroxide (NaOH). L-1 get the result that the NaOH catalyst reacts faster and the hydrogen yield is greater than the KOH catalyst [12]
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