High-frequency sound waves make electrolyzers produce 14x more hydrogen

RMIT researchers say they’ve unlocked cheaper, more energy-efficient green hydrogen production with a new electrolysis technique boosted by sound waves. With these high-frequency vibrations active, standard electrolysis produces 14x more hydrogen.Where batteries can’t carry enough energy, or take too long to charge, green hydrogen is rising as an important zero-emissions fuel that carries a higher density of electrons and supports fast refueling. Green hydrogen is created through electrolysis; splitting water molecules into hydrogen and oxygen using renewable energy to attract each gas to a different electrode, where the hydrogen can be captured, compressed and stored. So why does this process work so much better when the RMIT team plays a 10-MHz sound wave? Several reasons, according to a research paper just published in the journal Advanced Energy Materials.Firstly, vibrating the…

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