Lunar Soil Simulant Electrolysis Using Inert Anode for Al-Si Alloy and Oxygen Production
Open accessAbstract
NEU-1, a new lunar soil simulant mined from the Longgang Volcano Group in Jilin Province of China, was electrochemically split into Al-Si alloy and oxygen in molten 52.7wt%NaF-47.3wt%AlF 3 at 1233 K using 56wt%Fe-44wt%Ni metallic inert anode. The anode gas was analyzed by gas chromatography, while the cathode product obtained by galvanostatic electrolysis for 8 h was analyzed by means of X-ray diffraction, X-ray fluorescence, scanning electron microscopy and energy dispersive spectrometer. The results showed that the phase compositions of the cathode product are Al and Si, while the metallic mass fraction is 56.70 wt% Al, 40.80 wt% Si, 2.25 wt% Fe, and 0.25 wt% Ti, respectively. Besides, the outlet gas on the anode during electrolysis is pure oxygen according to the analysis of gas chromatography.
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Electrolytes include molten calcium chloride, molten cryolite, molten regolith, and ionic liquid.
“Electrolytes include molten calcium chloride, 114,115 molten cryolite, 116 molten regolith, 117,118 and ionic liquid. 119,120”
From Energy system and resource utilization in space: A state-of-the-art review (2024) · cites this paper as [116]
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- Authors
- Liu, A., Shi, Z., Hu, X., Gao, B., & Wang, Z.
- Affiliations
- Key Laboratory of Ecological Metallurgy of Multimetallic Mineral of Ministry of Education (CN)
- Venue
- Journal of The Electrochemical Society
- Publisher
- The Electrochemical Society
- Published
- 2017
- Volume
- 164
- Issue
- 2
- Pages
- H126-H133
- ISSN
- 0013-4651 (ISSN-L)
- 1945-7111
- OpenAlex
- W2578232669
- Cited by
- 45
- References
- 29
- Citations by year
- 2026: 7 · 2025: 8 · 2024: 9 · 2023: 3 · 2022: 6 · 2021: 4 · 2020: 2 · 2019: 6
- FWCI
- 1.52
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of The Electrochemical Society (publishedVersion)
- Funders
- National Natural Science Foundation of China (NSFC) (51322406)
- Fundamental Research Funds for the Central Universities (N140205001)
- Topics
- Physical Sciences › Chemical Engineering › Fluid Flow and Transfer Processes › Molten salt chemistry and electrochemical processes
- Physical Sciences › Chemistry › Inorganic Chemistry › Inorganic Fluorides and Related Compounds
- Physical Sciences › Engineering › Mechanical Engineering › Metallurgical Processes and Thermodynamics
- Keywords
- lunar regolith simulant, molten salt electrolysis, inert anode, Al-Si alloys, oxygen production, galvanostatic electrolysis, lunar resource utilization
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