Scientists think they may have cracked life support for Martian occupation
PEC devices use semiconductor materials to convert solar energy directly to chemical energy to produce hydrogen and oxygen without requiring the intermediate production of electricity. The technology is the subject of intense research on Earth because it might help in the sustainable energy problem, but its potential in space has yet to be studied.
"This work seeks to establish the theoretical foundations for the application of PEC devices in habitats on the Moon and Mars and delivers the first foray into exploring the feasibility of utilising them for oxygen production and carbon dioxide recycling," Brinkert said in the paper.
The research also looked at whether the PEC devices could be built in an extra-terrestrial settlement using In-Situ Resource Utilization , meaning what you can find where you've landed. "The device construction can draw from a variety of semiconductors and electrocatalyst materials that are available on the Moon and Mars and the required materials can eventually be produced via ISRU. Moreover, we have previously demonstrated that PEC devices can work efficiently in microgravity and our theoretical analysis suggests that it can suitably be scaled up," the study said.
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