Life on Earth owes its existence to photosynthesis – a process which is 2.3 billion years old.
The search for alternative systems which can be employed on the Moon and on trips to Mars is therefore ongoing. One possibility is to harvest solar energy and directly use it for oxygen production and carbon dioxide recycling in only one device.
We could use additional thermal energy released during the process of capturing solar energy directly for catalyzing the chemical reactions – thereby speeding them up. Moreover, complex wiring and maintenance could be significantly reduced.to analyze and predict the performance of such integrated"artificial photosynthesis" devices for applications on Moon and Mars.
Artificial photosynthesis devices, on the other hand, could operate at room temperature at pressures found on Mars and the Moon. That means they could be used directly in habitats and using water as the main resource.Shackleton craterOn Mars, the atmosphere composes of nearly 96% carbon dioxide - seemingly ideal for an artificial photosynthesis device. But the light intensity on the red planet is weaker than on Earth due to the larger distance from the Sun.
Existing electrolysis systems, operating at high temperatures, require a significant amount of energy input. And devices foron Mars are still in their infancy, whether they are based on photosynthesis or not.
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