New! Sign up for our free email newsletter.
Science News
from research organizations

A mission to Mars could make its own oxygen thanks to plasma technology

Date:
October 18, 2017
Source:
IOP Publishing
Summary:
Plasma technology could hold the key to creating a sustainable oxygen supply on Mars, a new study has found. It suggests that Mars, with its 96 per cent carbon dioxide atmosphere, has nearly ideal conditions for creating oxygen from CO2 through a process known as decomposition.
Share:
FULL STORY

Plasma technology could hold the key to creating a sustainable oxygen supply on Mars, a new study has found.

It suggests that Mars, with its 96 per cent carbon dioxide atmosphere, has nearly ideal conditions for creating oxygen from CO2 through a process known as decomposition.

Published today in the journal Plasma Sources Science and Technology, the research by the universities of Lisbon and Porto, and École Polytechnique in Paris, shows that the pressure and temperature ranges in the Martian atmosphere mean non-thermal (or non-equilibrium) plasma can be used to produce oxygen efficiently.

Lead author Dr Vasco Guerra, from the University of Lisbon, said: "Sending a manned mission to Mars is one of the next major steps in our exploration of space. Creating a breathable environment, however, is a substantial challenge.

"Plasma reforming of CO2 on Earth is a growing field of research, prompted by the problems of climate change and production of solar fuels. Low temperature plasmas are one of the best media for CO2 decomposition -- the split-up of the molecule into oxygen and carbon monoxide -- both by direct electron impact, and by transferring electron energy into vibrational excitation."

Mars has excellent conditions for In-Situ Resource Utilisation (ISRU) by plasma. As well as its CO2 atmosphere, the cold surrounding atmosphere (on average about 210 Kelvin) may induce a stronger vibrational effect than that achievable on Earth. The low atmospheric temperature also works to slow the reaction, giving additional time for the separation of molecules.

Dr Guerra said: "The low temperature plasma decomposition method offers a twofold solution for a manned mission to Mars. Not only would it provide a stable, reliable supply of oxygen, but as source of fuel as well, as carbon monoxide has been proposed as to be used as a propellant mixture in rocket vehicles.

"This ISRU approach could help significantly simplify the logistics of a mission to Mars. It would allow for increased self-sufficiency, reduce the risks to the crew, and reduce costs by requiring fewer vehicles to carry out the mission."


Story Source:

Materials provided by IOP Publishing. Note: Content may be edited for style and length.


Journal Reference:

  1. Vasco Guerra, Tiago Silva, Polina Ogloblina, Marija Grofulović, Loann Terraz, Mário Lino da Silva, Carlos D Pintassilgo, Luís L Alves, Olivier Guaitella. The case for in situ resource utilisation for oxygen production on Mars by non-equilibrium plasmas. Plasma Sources Science and Technology, 2017; 26 (11): 11LT01 DOI: 10.1088/1361-6595/aa8dcc

Cite This Page:

IOP Publishing. "A mission to Mars could make its own oxygen thanks to plasma technology." ScienceDaily. ScienceDaily, 18 October 2017. <www.sciencedaily.com/releases/2017/10/171018113316.htm>.
IOP Publishing. (2017, October 18). A mission to Mars could make its own oxygen thanks to plasma technology. ScienceDaily. Retrieved April 24, 2024 from www.sciencedaily.com/releases/2017/10/171018113316.htm
IOP Publishing. "A mission to Mars could make its own oxygen thanks to plasma technology." ScienceDaily. www.sciencedaily.com/releases/2017/10/171018113316.htm (accessed April 24, 2024).

Explore More

from ScienceDaily

RELATED STORIES