US EditionSydney Researchers Use Liquid Gallium to Produce Hydrogen from Seawater
The University of Sydney team achieved a 12.9% efficiency using a circular process with liquid gallium to produce green hydrogen from seawater and freshwater.
- Yesterday, researchers at the University of Sydney revealed a sunlight-powered method using liquid gallium to produce clean hydrogen from freshwater and seawater, published in Nature Communications.
- To address long-standing barriers in green hydrogen production, researchers have pursued a decades-long search for economical hydrogen, hindered by high energy needs and the reliance on purified water.
- Using microscopic gallium particles, the team suspended liquid gallium in water where sunlight or artificial light triggers a surface reaction releasing hydrogen and forming gallium oxyhydroxide, which can be recycled, achieving 12.9% efficiency.
- The research team led by Professor Kourosh Kalantar-Zadeh is building a mid-scale reactor to increase efficiency, targeting deployment in coastal or water-scarce regions.
- The work highlights the untapped chemistry of liquid metals, offering a new avenue for sustainable hydrogen and positioning liquid gallium as a novel material in the global hydrogen economy.
7 Articles
7 Articles
Sunlight and liquid metal produce clean hydrogen from seawater with new 'harvest' method
Researchers have created a process using liquid metals, powered by sunlight, that can produce clean hydrogen from both freshwater and seawater. The method allows researchers to "harvest" hydrogen molecules from water while ...
Low temperature and rapid photothermal oxidation of liquid gallium for circular hydrogen production - Nature Communications
Hydrogen is a clean energy carrier with significant promises for a sustainable future, yet many established production routes operate under undesirable conditions or constraints, motivating the search for alternative production pathways. Here, our approach uses photothermal oxidation of liquid gallium to generate hydrogen from both freshwater and seawater. The exposure to light thermally heats up liquid gallium droplets to a temperature suitable…
Low temperature and rapid photothermal oxidation of liquid gallium for circular hydrogen production
Hydrogen is a clean energy carrier with significant promises for a sustainable future, yet many established production routes operate under undesirable conditions or constraints, motivating the search for alternative production pathways. Here, our approach uses photothermal oxidation of liquid galli …
Scientists have found a way to produce clean hydrogen using liquid gallium and sunlight. The method even works with seawater, and the metal used can be reused. Many consider hydrogen part of the solution to climate change. When burned, it releases only water vapor, not CO2. […] Want to learn more about science? Read the latest articles on Scientias.nl.
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