PhD Studentship: Development and Evaluation of Novel Materials for Proton-conducting Ceramic Electrolysers

Protonic ceramics represent an emergent class of materials that have potential utility in several intermediate-temperature electrochemical applications, including the production of “green” hydrogen. Renewable-derived electricity can be used to drive steam electrolysis to form H2 and O2 products in a proton-conducting ceramic electrolyser (PCCEL). However, like any emerging technology, they face several challenges. Finding materials that can withstand the harsh operating conditions of PCCELs, including high temperatures and corrosive environments, without degrading is a significant challenge. This includes materials for electrodes, electrolytes, seals, and interconnects. Ensuring the long-term durability and stability of PCCEL systems is crucial for commercial viability. Therefore, developing durable materials and improving system design to mitigate degradation is essential. This project will explore novel materials for electrodes and the electrolyte of PCCEL investigating activity and durability. Material syntheses and characterisations will be carried out to verify the credibility of the system.

The project will support the activities of the Global Hydrogen Production Technologies (HyPT) Center. HyPT is a consortium of Arizona State University, University of Adelaide, University of Toronto, and within the UK, Universities Cranfield, Birmingham, Cambridge, Imperial College London, and Newcastle. The HyPT will develop hydrogen production technologies with net-zero emissions of carbon dioxide for real-world applications embodying technical innovation, socio-economic factors, and water-energy resource management.

Aims, Objectives and Methodology: Conduct a comprehensive review of existing research on materials for PCCELs, including synthesis methods, performance evaluation, and degradation mechanisms. Develop synthesis methods for producing new materials with tailored properties optimised for PCCEL applications, focusing on factors such as conductivity, stability, and compatibility. Develop and optimise synthesis routes for selected materials, utilising techniques such as solid-state synthesis, sol-gel methods, and chemical vapour deposition. Characterise the synthesised materials using various analytical techniques, including X-ray diffraction, scanning electron microscopy, and impedance spectroscopy. Identify promising candidate materials based on their properties, such as proton conductivity, chemical stability, thermal resistance, and cost and evaluate the performance of such materials through comprehensive electrochemical testing, including impedance spectroscopy, cyclic voltammetry, and durability studies under realistic operating conditions. To develop novel materials with improved performance and durability for use in PCCELs to enhance their efficiency and cost-effectiveness. Fabricate prototype PCCEL cells incorporating the synthesised materials as electrodes, electrolytes, and other components. Evaluate the electrochemical performance of the cells under relevant operating conditions, including temperature, pressure, and gas composition. Investigate the degradation mechanisms of materials in PCCELs through accelerated stress tests and post-mortem analysis. Assess the scalability and manufacturability of promising materials and fabrication processes for potential commercialisation and scale up the fabrication processes to produce larger quantities of materials for further testing and validation.

Funding notes:

The studentship is open to UK and EU applicants with settled status applicants and will cover both the cost of tuition fee and a yearly stipend (at UKRI rate) over the course of the PhD programme.

To apply please email your cv via the above ‘Apply’ button.

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