Title: The effect of current and filtration on hydrogen production in seawater electrolysis
Grade level: Middle School - Grades 7-9
Academic Level: Ordinary
Project Type: Experimental
Awards: 1st Place, Canada Wide Virtual Science Fair ($400)
Affiliation: Canada Wide Virtual Science Fair
Materials, Techniques and Concepts: Hoffman apparatus and 2 platinum electrodes, electronic balance, DC power supply, electrolytes
Description: This project researches if different voltages / amperages and electrolytes affect the volume of hydrogen produced using water electrolysis and if preliminary filtration methods increase hydrogen production in seawater electrolysis? The first step is to prepare equal concentration electrolyte solutions; then by using a Hoffman apparatus and a DC power supply the amount of hydrogen and oxygen accumulated by the electrodes is measured at different voltages and at different electrolyte concentrations. The same is repeated by testing filtered seawater.