Manned Mission To Mars Close To Possibility As New Tech Transforms Salty Water To Oxygen And Fuel

KEY POINTS

  • Unlike NASA’s MOXIE, this new technology can produce oxygen and hydrogen from salty water
  • The team behind this device wants to partner with NASA for its goal of bringing humans to Mars by 2023
  • Apart from Martian missions, the new technology is also useful on Earth

Access to water and fuel remains to be the biggest barrier to manned missions to Mars. The good news is that a new electrolyzer technology could trample that obstacle, making it possible for humans to survive the extreme conditions on the Red Planet. 

A team of engineers developed an electrolyzer device that can turn salty water into fuel and oxygen. Details of their development were published in the proceedings of the National Academy of Sciences.

This device can produce 25 times more oxygen than NASA’s Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE), which is currently used by the Perseverance rover that’s currently on its way to Mars.

Unlike MOXIE, which produces oxygen from carbon dioxide, the new tech from the engineers of Washington University can produce both oxygen and hydrogen even from salty water. 

“Our novel brine electrolyzer incorporates a lead ruthenate pyrochlore anode developed by our team in conjunction with a platinum on carbon cathode,” Vijay Ramani, lead author and professor at the McKelvey School of Engineering at Washington University, said in a press release.  

“These carefully designed components coupled with the optimal use of traditional electrochemical engineering principles has yielded this high performance,” he explained further.

The team hopes it could partner with NASA for its goal of bringing humans to Mars by 2023. After all, it performed a simulation of the Martian atmosphere at -33 degrees Fahrenheit in testing its brine electrolysis device.  

Salty water is abundant on Mars, a fact that has already been established by various studies in the past. In September, three underground lakes were also discovered on the Red Planet. The waters were found to contain extremely salty components. 

Apart from Martian missions, the technology is also useful on Earth, according to the engineers. The standard electrolysis device on Earth requires pure water, whereas this new device can make oxygen and fuel even from salty water, making it more economical to use. 

The electrolysis system also has diverse applications. For instance, submarines for deep ocean exploration can rely on the system to produce enough supply of oxygen and fuel from salty water.

Mars seen from the Hubble space telescope Mars seen from the Hubble space telescope Photo: NASA / NASA

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