China recently completed artificial photosynthesis experiments in orbit, advancing the use of local resources to regenerate oxygen and produce fuel in space. The tests were conducted aboard the Chinese space station and validated essential technologies for future manned deep space exploration missions, according to the China Manned Space Agency (CMSA).
Extraterrestrial artificial photosynthesis uses solar energy to convert carbon dioxide and water into oxygen and carbon compounds such as methane and ethylene. The process takes place under ambient temperature and pressure conditions, eliminating the need for conventional methods that require high temperatures and pressures. This approach allows for more efficient and flexible energy conversions, using pathways such as solar-chemical and solar-electrical-chemical.
The experiments carried out have already successfully produced oxygen and ethylene, validating technologies such as the conversion of carbon dioxide at room temperature, separation of gases in microgravity and precise control of flow rates of liquids and gases in space. Furthermore, modification of catalysts has enabled the selective production of useful materials, including formic acid, essential for sugar synthesis, and fuels such as methane.
The CMSA highlighted that the data obtained in 12 experiments provide valuable insights for the development of technologies aimed at using extraterrestrial resources. This innovation is considered crucial for self-sufficient survival on long-term space missions, reducing dependence on terrestrial resources and establishing the technical basis for sustainable space exploration.
Source: https://www.chinahoje.net/china-avanca-na-fotossintese-artificial-para-exploracao-espacial-de-longo-prazo/
