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Updated: Feb 17, 2026

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
Martian Redox Chemistry: Oxygen Reduction in Low-Temperature Magnesium Perchlorate Brines
Joseph Elliott1, Kamonwad Ngamchuea1, Christopher Batchelor-McAuley1
1Department of Chemistry, Physical & Theoretical Chemistry Laboratory, University of Oxford , South Parks Road, Oxford OX1 3QZ, United Kingdom.
Abstract:
NASA has a mandate to send humans to Mars by 2033. Recent discoveries regarding Mars include the likely presence of low-temperature liquid brines on the planet's surface. This work investigates redox chemistry in near saturated aqueous 2.8 M Mg(ClO4)2 at temperatures as low as -34 °C. These conditions are comparable to those thought to be found on the Martian surface. In particular, electro-reduction of oxygen is studied, and the diffusion coefficient and solubility of this important redox species are established.
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