Publication date: 27th March 2025
Green hydrogen is emerging as a vital energy vector for the decarbonization of industrial and mobility sectors. In the context of the H2ENRY initiative, our work focuses on advancing three innovative technologies for hydrogen production: Solid Oxide Electrolysis Cells (SOEC), Photoelectrochemical (PEC) water splitting, and integrated Bioelectrochemical Systems combined with dark fermentation (FO).
New perovskite-based nanofibers (PBMO) have been synthesized and characterized to be used as catalysts for SOEC, providing enhanced performance when used at low SOEC temperatures and with transport properties with lower dependency on the temperature. In parallel, promising results have been obtained in the fabrication of photoelectrode materials using scalable techniques such as screen printing. This approach paves the way for cost-effective, high-performance PEC systems that can be readily expanded to meet scalability demand. Additionally, our FO approach leverages bioelectrochemical processes coupled with dark fermentation to generate hydrogen from organic substrates, offering a complementary route that aligns with circular economy principles.
To ensure that the hydrogen produced meets stringent industrial purity requirements, we have also developed advanced purification strategies using polymeric membrane technologies. This integrated approach not only enhances overall process efficiency but also paves the way for scalable and sustainable green hydrogen production.
In this work, we will detail the experimental results, material innovations, and system integration strategies that underpin these breakthroughs. Our findings illustrate a comprehensive pathway toward cost-effective and environmentally sustainable hydrogen production, reinforcing the critical role of advanced electrochemical, photoelectrochemical and bioelectrochemical technologies within the H2ENRY framework.
This project is linked to the 2023 call for the accreditation and granting of aid to "CERVERA" Centers of Excellence, within the framework of the 2021–2023 State Plan for Scientific and Technical Research and Innovation and the Recovery, Transformation and Resilience Plan – Funded by the European Union – NextGenerationEU.
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