Inventing a way to create hydrogen fuel from seawater

Stanford University scientists have invented a way to create hydrogen fuel from seawater when using solar energy, opening up the ability to create clean, zero-carbon-free energy.

Hydrogen fuel is being researched by the world to serve future projects.(Photo: HydroWorld).

The study was published on March 18 in the scientific journal Proceedings of the National Academy of Sciences, describing an anti-erosion method when separating hydrogen and oxygen gas with electricity.

Current water separation measures use purified water because the chlorine in seawater salts (negatively charged) can corrode the anode, resulting in a shorter lifespan of the separation system.

According to the researchers, when separating hydrogen and oxygen from water, hydrogen gas flies out in the cathode and oxygen escapes in the anode. The team led by Dai Hongjie scientists found that if the anodes were coated with metal layers that were negatively charged, they themselves pushed the chlorine out and slowed down the internal metal corrosion. covered. Without a negatively charged casing, the anode can only work for about 12 hours in salty seawater, but with this coating, the anode can work well for thousands of hours.

Dai Hongjie scientist's laboratory can generate up to 10 times the amount of electricity through its multistage equipment, making it faster to produce hydrogen from seawater. According to researchers, in the future, the technology could also be used to create oxygen that can breathe from the ocean.

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