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Robotic chemist discovers the way to make oxygen from Martian minerals

November 14, 2023
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Robotic chemist discovers the way to make oxygen from Martian minerals
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A robotic chemist working autonomously in a lab has developed an oxygen-producing catalyst from minerals present in Martian meteorites. The identical process might someday be used to offer oxygen for astronauts on Mars.

Sending provides to a future Martian colony by spacecraft can be extraordinarily costly, which makes producing supplies with Mars’s pure assets an interesting choice. However this may be tough as a result of there are fewer obtainable components on Mars than on Earth.

Yi Luo on the College of Science and Know-how of China in Hefei and his colleagues have developed a totally automated robotic chemist. The machine used a high-powered laser to analyse the chemical make-up of 5 Martian meteorites and located six components in vital portions: iron, nickel, calcium, magnesium, aluminium and manganese.

“On Earth, we don’t use these six components as a result of we’ve extra selection,” says Luo. “These six components are usually not the perfect for this type of catalyst and it limits its efficiency, however it’s what you’ve bought on Mars.”

There are greater than 3.7 million totally different mixtures of the Martian components, which might take greater than 2000 years to check manually if every spherical of testing took round 5 hours, says Luo.

Relatively than checking each mixture, the robotic used synthetic intelligence to foretell which mixture of components would make the perfect catalyst for producing oxygen. It then produced and examined greater than 200 catalysts, utilizing a briny answer and carbon dioxide because the uncooked supplies.

The robotic lastly settled on a catalyst that’s corresponding to the perfect obtainable catalysts on Earth from 10 years in the past, says Luo. The catalyst can work at −37°C (−35°F), just like temperatures on Mars, and for greater than six days constantly. A 3-metre excessive, 100-square-metre room on Mars with the catalyst on its ceiling might produce oxygen ranges matching these on Earth in about 15 hours, Luo and his crew calculated.

“To get [the robot] to work is a non-trivial achievement, as a result of you need to get so many elements working collectively,” says Ross King on the College of Cambridge. It nonetheless is likely to be simpler to design supplies on Earth and ship them to Mars in circumstances like this, however autonomous robotic chemists might be important for exploring additional out within the photo voltaic system the place it’s more durable to speak, he says.

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