PhD Positions in Energy and Planetary Sciences; Natural Hydrogen and Supercritical CO₂ Systems

ETH Zurich

Schweiz

Two PhD Opportunities in Energy and Planetary Sciences: Natural Hydrogen and Supercritical CO₂ Systems

100%, fixed-term

The ETH Zurich Geothermal Energy & Geofluids (GEG.ethz.ch) Group in the Department of Earth and Planetary Sciences investigates subsurface reactive fluid and geothermal energy transfer, developing and employing computer simulations, laboratory experiments, and field analyses. Our aim is to gain fundamental insights and to develop sustainable technologies that address societal needs.

We are excited to announce two interdisciplinary PhD opportunities focused on cutting-edge research in geochemistry, planetary science, and natural hydrogen. The successful candidates will join a dynamic research team to explore fundamental processes in supercritical CO₂ systems with dissolved water and the formation of natural hydrogen in geological environments. This research aims to address pressing questions regarding geological processes on Earth and other planets as well as the potential for energy resources from natural hydrogen.

Job description

For this research, we are looking for applicants with backgrounds in geochemistry and electrochemistry, or closely related fields, to fill two PhD positions with respective foci on: (1) reactivity of hydrous supercritical CO₂ (scCO2) and (2) subsurface production of natural hydrogen.

The PhD position on the reactivity of hydrous scCO₂ will focus on mineral-hydrous scCO₂ reactions, including the dissolution and precipitation of minerals as well as the associated electrochemical processes in CO₂-rich environments with limited dissolved water. This research will have direct applications to natural and artificial CO₂ reservoirs, geologic CO₂ storage, usage of subsurface CO₂ as a geothermal energy extraction fluid, insights into early Earth conditions, and the potential for studying CO₂ interactions on other planets.

The PhD position on natural hydrogen production will focus on the formation, accumulation, and migration of natural hydrogen in subsurface environments. The research aims to explore geochemical processes that lead to natural hydrogen generation, focusing on the potential of natural hydrogen as an energy resource. The research will also extend to the study of hydrogen generation in planetary systems, particularly in the context of (early) life in deep subsurface environments and extraterrestrial settings.

Profile

We seek highly motivated, self-organized individuals with a strong background in geochemistry, planetary science, subsurface energy science, or a related field. Successful candidates will:

have a keen interest in interdisciplinary research that combines Earth science and energy resources.
be motivated to conduct innovative research in geochemistry, energy systems, and planetary science.
have experience in experimental geochemistry, geochemical modeling, or geothermal/fluid systems.
possess skills in geochemistry measurement techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray computed tomography (XRCT), nuclear magnetic resonance (NMR), or electron paramagnetic resonance (EPR).
ideally also have expertise in designing and performing high-temperature and high-pressure in situ experiments.
be near-fluent in English, both written and spoken.

Workplace

We offer

We offer:

a dynamic and stimulating work environment with cutting-edge computational and laboratory infrastructure - both at ETH Zurich as a whole and within the GEG Group in particular.
GEG's Reactive Transport Laboratory features an XRCT system for conducting in situ reactive transport experiments, as well as a laser laboratory equipped with Particle Image Velocimetry (PIV) and Laser-Induced Fluorescence (LIF) capabilities.
we are currently expanding our facilities to include both low - and high-field, multi-nuclide Nuclear Magnetic Resonance (NMR) scanners. These will enable in situ reactive transport experiments, along with the quantification and visualization of a wide range of components, temperature, and pressure in up to three dimensions. The NMR systems will also be equipped with Electron Paramagnetic Resonance (EPR) capabilities. The GEG Group fosters an open, collaborative, and inclusive culture.

The position is 100% with a competitive salary according to ETH Zurich standards. The position is for one year with the potential for annual extensions based on project needs and employee performance. The anticipated position start date is 1st of October 2025 or as soon as possible thereafter.

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We value diversity

In line with our values, ETH Zurich encourages an inclusive culture. We promote equality of opportunity, value diversity and nurture a working and learning environment in which the rights and dignity of all our staff and students are respected. Visit our Equal Opportunities and Diversity website to find out how we ensure a fair and open environment that allows everyone to grow and flourish.

Curious? So are we.

We look forward to receiving your online application with the following documents:

a cover letter, describing your motivation, experience and qualification for the position
your CV
diplomas and relevant work certificates
if readily available, up to three professional reference letters, otherwise, please provide the contact information of up to three references

Please note that we exclusively accept applications submitted through our online application portal. Applications via email or postal services will not be considered.

Further information about the GEG Group can be found on our website. Questions regarding the position should be directed to Dr. Xiang-Zhao Kong at xkong@ethz.ch (no applications).

We would like to point out that the pre-selection is carried out by the responsible recruiters and not by artificial intelligence.

About ETH Zürich

ETH Zurich is one of the world’s leading universities specialising in science and technology. We are renowned for our excellent education, cutting-edge fundamental research and direct transfer of new knowledge into society. Over 30,000 people from more than 120 countries find our university to be a place that promotes independent thinking and an environment that inspires excellence. Located in the heart of Europe, yet forging connections all over the world, we work together to develop solutions for the global challenges of today and tomorrow.

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