<ul><li>Scientists have developed new materials and methods to increase efficiency and safety of a green hydrogen reactor.</li><li>The reactor operated successfully outdoors for three years, but challenges remain before it can be a viable component of the clean energy transition.</li><li>The researchers used photocatalysts to convert sun and water into green hydrogen, making it possible to use solar energy anytime and anywhere.</li><li>The efficiency of solar-to-chemical energy conversion needs to be improved for reactors to be cost-effective and competitive with hydrogen made from natural gas.</li></ul>

A ‘game-changing’ design for green hydrogen reactor

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