Artificial photosynthesis transforms water into hydrogen and oxygen

Australian scientists have successfully developed "artificial photosynthesis" that turns water into hydrogen and oxygen to provide clean energy for living.

The most efficient artificial photosynthesis system in the world

Researchers at Monash University in Melbourne have developed the world's most efficient artificial photosynthesis technique, which simulates plant photosynthesis by passing electricity through the water.

Photosynthesis is an efficient process for generating fuel. Photo: Shelley Lloyd.

" Water electrolysis will provide a clean, cheap, sustainable and renewable energy source, " said Leone Spiccia, lead author of the study. " This is a very important breakthrough that will take us one step further to achieve this goal."

The average yield of artificial photosynthesis was just over 10%, while the team's system yielded 22.4%, breaking the previous record of 18%. The result is even more meaningful when nickel is used as a catalyst. This is a low cost, abundant and stable source of raw materials. Other methods of electrochemical extraction require precious metals.

Another advantage is that the Monash system can operate in river water, allowing for use in many different geographic locations. The scope of application of this system is very large, because hydrogen fuel is suitable for all current technologies.

" Hydrogen can be used to generate electricity directly in fuel cells ," MacFarlane said. " Many car manufacturers are making fuel-cell vehicles, and hydrogen is being used as a low-cost solar energy storage technology for households."

Thomas Faunce, an expert on artificial photosynthesis, said that the potential of this study could completely change the way modern societies harness energy.

" If artificial photosynthesis could be applied to all buildings on the ground with better plant performance, we would reduce the pressure on nature and at the same time have enough food and fuel on the planet. , "Faunce told ABC News on July 17.