Engineers use sound waves to boost green hydrogen production by 14 times

“Electrode materials used in electrolysis suffer from hydrogen and oxygen gas build-up, forming a gas layer that minimizes the electrodes’ activity and significantly reduces its performance,” said Ehrnst, a Ph.D. researcher at RMIT’s School of Engineering.Professor Leslie Yeo, one of the lead senior researchers, said that the breakthrough was a huge step toward using the “new acoustic platform” for other applications. “Our ability to suppress bubble build-up on the electrodes and rapidly remove them through high-frequency vibrations represents a major advance for electrode conductivity and stability. With our method, we can potentially improve the conversion efficiency leading to a net-positive energy saving of 27 percent,” said Yeo from RMIT’s School of Engineering.However, integrating the sound-wave innovation with current electrolyzers to scale up the work is a challenge…

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