About the project
As the need to decarbonise transportation, especially the maritime sector, intensifies, there is growing interest in hydrogen energy. Geological seeps of Natural Hydrogen have been known for decades but regarded as curiosities. The aim of this project is to understand more about the underlying chemistry responsible for the formation of this low cost and energy efficient source of hydrogen.
The are various estimates of how much hydrogen can be accessed from geological reserves, with some generous projections suggesting the potential to produce enough hydrogen for the next 100,000 years at 1Gt per year (current predicted need). The production of geological reserves of hydrogen is commonly ascribed to the hydrolysis of ferrous iron (Fe2+) containing silicates, yielding oxidised ferric iron (Fe3+) alongside hydrogen. As the interest in Natural Hydrogen continues to grow there is an emerging need to understand these chemical transformations in greater detail.
X-ray absorption spectroscopy (XAS) is unique in its ability to provide element specific information on oxidation state, coordination environment and local structure without the need for periodicity. Modern synchrotron facilities can provide X-ray beams with both micro and nano spot sizes that not only provide the precise chemical information but can be scanned across samples to construct two-dimensional images of element specific speciation. The core aim of this project is to use XAS to examine cross-sections of recent drill samples, linked to the production of Natural Hydrogen. The intention is to develop a comprehensive understanding of the iron (Fe) chemistry involved within these materials, and the alterations that take place on exposure to different conditions.
You'll be based in the School of Chemistry and Chemical Engineering. You'll receive unique training and exposure to state-of-the-art analytical methods, including national and international synchrotron light sources, alongside being part of a cohort within the Southampton Marine Maritime Institute (SMMI).
The School of Chemistry and Chemical Engineering is committed to promoting equality, diversity inclusivity as demonstrated by our Athena SWAN award. We welcome all applicants regardless of their gender, ethnicity, disability, sexual orientation or age, and will give full consideration to applicants seeking flexible working patterns and those who have taken a career break. The University has a generous maternity policy, onsite childcare facilities, and offers a range of benefits to help ensure employees’ well-being and work-life balance. The University of Southampton is committed to sustainability and has been awarded the Platinum EcoAward.
