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Humans on Mars Initiative

The Bubble Effect

  • Production of hydrogen and oxygen by electrolysis is necessary for human space exploration. We address bubble nucleation, growth, and detachment during electrolysis.

    © Joris Wegner, University of Bremen

The Bubble Effect

Human exploration of space is limited by the availability of resources. In situ production of oxygen and hydrogen is an essential for space transportation systems and for life support. Electrolysis allows splitting water into its components, oxygen and hydrogen, using electric energy or directly solar energy. During this process, the nucleation, growth, and detachment of bubbles at the surface of the electrode, the "bubble effect", strongly affects the performances of the process and is gravity-dependent. In this project we will investigate the bubble effect on flat or nanostructured electrodes, in order to improve the electrolyzer design and operation under reduced gravity. This goal will be reached by combining materials science and engineering, time-resolved electro-analytical techniques, and multi-phase / multi-scale fluid-dynamic modelling.

Contact

Project Leader

Prof. Dr. Fabio La Mantia
Professor for Energy Storage and Energy Conversion System
University of Bremen

 

Wiener Str. 12, 28359 Bremen, DE
IFAM-Building, Room 1.5.13
+49 421 2246 7331
lamantiaprotect me ?!uni-bremenprotect me ?!.de

 

 

Publication highlights

Synthesis_structure
© 2024 Attribution 4.0 International (CC BY 4.0)
MAPEX Research Highlights|

Synthesis, structural and spectroscopic characterization of defect-rich forsterite as a representative phase of Martian regolith

Muchammad Izzuddin Jundullah Hanafi, Lorenzo Bastonero, Mohammad Mangir Murshed, Lars Robben, Wilke Dononelli, Andrea Kirsch, Nicola Marzari, Thorsten M. Gesing

IUCrJ 11 (2024): 977-990

https://doi.org/10.1107/S2052252524009722

Regolith draws intensive research attention because of its importance…

Location_dependent
© The Authors

Location-dependent flight cost difference from the lunar surface to an orbital fuel depot and its influence on in situ resource utilisation location selection

Sven Julius Steinert, Paul Zabel, Dominik Quantius

Frontiers in Space Technologies 5 (2024) 

doi: 10.3389/frspt.2024.1352213

With increasing relevance for lunar activities, the location selection for in situ resource utilization (ISRU) facilities is a necessary step to identify the most suitable…

JEDI: A versatile code for strain analysis of molecular and periodic systems under deformation

Henry Wang, Sanna Benter, Wilke Dononelli, Tim Neudecker

The Journal of Chemical Physics 160 (2023): 152501

doi: 10.1063/5.0199247

Stretching or compression can induce significant energetic, geometric, and spectroscopic changes in materials. To fully exploit these effects in the design of…

Automated_all-functionals_2024
© The Authors

Automated all-functionals infrared and Raman spectra

Lorenzo Bastonero; Nicola Marzari

npj computational materials 10 (2024): 55

doi: 10.1038/s41524-024-01236-3

Infrared and Raman spectroscopies are ubiquitous techniques employed in many experimental laboratories, thanks to their fast and non-destructive nature able to capture materials' features…

Optimizing lunar
© The Authors

Optimizing lunar regolith beneficiation for ilmenite enrichment

Kunal Kulkarni, Michel Fabien Franke, Muchammad Izzuddin Jundullah Hanafi, Thorsten M. Gesing, Paul Zabel

Frontiers in Space Technologies 4 (2023): 1328341  

doi: 10.3389/frspt.2023.1328341

Over the past few years, the international space industry has focused extensively on advancing technologies…

Understanding-the-role
© 2023 American Physical Society

Understanding the role of Hubbard corrections in the rhombohedral phase of BaTiO 3

G. Gebreyesus, Lorenzo Bastonero, Michele Kotiuga, Nicola Marzari, Iurii Timrov

Physical Review B 108 (2023): 235171

doi: 10.1103/PhysRevB.108.235171

We present a first-principles study of the low-temperature rhombohedral phase of BaTiO3 using Hubbard corrected density-functional theory. By…

A-new-fuzzy
© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2022

A new fuzzy logic approach for reliable communications in wireless underground sensor networks

Damien Wohwe Sambo, Blaise Omer Yenke,  Anna Förster , Jospeh Ndong, Paul Dayang, Idrissa Sarr

Wireless Networks   2 8  (2022) :  3275-3292

doi: 10.1007/s11276-022-03008-7

Nowadays, the exploitation of Wireless Underground Sensor Networks (WUSNs) remains challenging because of the attenuation of…

Martian Landscape
© Joris Wegner, University of Bremen

A vision for Human Mars Exploration made in Bremen

M. Avila, C. Heinicke, L. Colombi Ciacchi, A. Dekorsy, S. Fehrler, K. Rezwan, N. Sieroka, K. Tracht, C. Verseux

44th COSPAR Scientific Assembly. Held 16-24 July, 2022. Online at https://www.cosparathens2022.org/. Abstract PEX.2-0002-22.

Bibcode: 2022cosp...44.3186A

Leading space agencies have the…

Graphical_Abstract
© 2022 Elsevier Ltd. All rights reserved.

Modeling of electrochemical oxide film growth-a PDM refinement

Ingmar Bösing, Fabio La Mantia, Jorg Thöming

Electrochimica Acta 406 (2022), 139847

doi: https://doi.org/10.1016/j.electacta.2022.139847

The Point Defect Model (PDM) is known for over 40 years and has brought deeper insight to the understanding of passivity. During the last decades it has seen…

growth
© The Authors (2021) licensed under CC BY-NC 4.0​​​​​​​

Optimization of growth and electrosynthesis of PolyHydroxyAlcanoates by the thermophilic bacterium Kyrpidia spormannii

Guillaume Pillot, Soniya Sunny, Victoria Comes, Sven Kerzenmacher

Faraday Discussions Advance Article (2023)

doi: https://doi.org/10.1101/2021.10.25.465696 preprint available open access: doi: http://biorxiv.org/lookup/doi/10.1101/2021.10.25.465696

The electrosynthesis of valuable compounds by…

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