Electrolysis in reduced gravitational environments: current research perspectives and future applications

Area of Science:

• Space science and engineering
• Electrochemistry
• Materials science

Background:

• Electrochemical energy conversion is vital for space missions, including life support on the ISS.
• Future long-term space travel requires on-site production of oxygen, fuel, and chemicals.

Purpose of the Study:

• To provide an overview of existing electrolytic energy conversion technologies for space applications.
• To discuss interfacial processes in reduced gravity and future applications like ISRU.
• To explore computational modeling and experimental suggestions for understanding electrolysis in space.

Main Methods:

• Review of proton exchange membrane (PEM) and alkaline electrolyzer systems.
• Analysis of interfacial processes under reduced gravitational conditions.
• Discussion of computational modeling approaches and experimental strategies.

Main Results:

• Electrolyzer systems are crucial for space applications, particularly in reduced gravity.
• Understanding interfacial processes like gas bubble dynamics is key to optimizing efficiency.
• Computational modeling and targeted experiments are needed to predict and improve performance.

Conclusions:

• Electrolysis technologies are essential for sustainable space exploration and ISRU.
• Further research into reduced gravity effects on electrochemical processes is required.
• Integrated modeling and experimental approaches will advance space-based electrolysis systems.