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Bigger Bubbles Boost Hydrogen Production Efficiency in Electrolysis

Study finds that bubble coalescence, not smaller bubbles, improves hydrogen evolution reaction efficiency by up to 30%, offering a new design principle for electrolyzers.

This research overturns a fundamental assumption in electrolysis, suggesting that promoting bubble coalescence could be a simple, cost-effective strategy to enhance green hydrogen production efficiency. As the world seeks to decarbonize hard-to-abate sectors, this finding could accelerate the adoption of electrolysis by reducing energy losses, potentially lowering the cost of green hydrogen and making it more competitive with fossil fuels.