SWEETHY
SWEETHY develops direct seawater electrolysis based on an anion-exchange membrane, for distributed hydrogen production coupled to wind and solar power. CENmat is a project partner.
project facts
- Full titleDirect seawater electrolysis technology for distributed hydrogen production
- ProgrammeHorizon Europe – Clean Hydrogen Partnership (HORIZON-JU-RIA)
- TopicDevelopment of innovative technologies for direct seawater electrolysis
- Grant agreement101192342
- Duration1 March 2025 – 28 February 2029
- CoordinatorRISE Research Institutes of Sweden
- CENmat’s rolePartner (beneficiary)
SWEETHY develops an AEM electrolyser that operates in natural or alkaline seawater and produces hydrogen and oxygen under intermittent renewable power.
Work covers corrosion-resistant, selective PGM-free catalysts, highly selective anion-exchange membranes with anti-fouling properties, anti-corrosion coatings, a stack architecture with hydraulic cell compression for high-pressure operation, and sustainability and techno-economic analysis.
targets
- More than 2,000 h of operation on Mediterranean seawater in Messina, Italy
- 20 g H₂/h production
- Degradation below 1 %/100 h
- Revenue optimisation with by-products and grid services
Project targets as published on CORDIS; they are research goals, not product specifications.
cenmat’s contribution
CENmat contributes materials know-how in anion-exchange membranes, ionomers and CRM-free electrodes for the seawater environment.
Related CENmat products
AEM membranes
AionFLX™ anion-exchange membranes
PFAS-free anion-exchange membranes for AEM electrolysers; wet or dry assembly.
Learn more →CRM-free anodes for AEM
OXYGN catalysts and electrodes (AEM)
CRM-free oxygen-evolution catalyst and coated anodes.
Learn more →CRM-free cathodes for AEM
H2GN catalysts and electrodes
CRM-free hydrogen-evolution catalyst and coated cathodes for AEM cells.
Learn more →other projects
- HYScale – coordinated by CENmat
- REDHY – CENmat as partner
- NEWELY – CENmat as partner
- PROMET-H2 – CENmat as partner
Test the materials
Paid samples, prices on request. We reply personally.
SWEETHY has received funding from the Clean Hydrogen Partnership under grant agreement No 101192342, supported by the European Union’s Horizon Europe research and innovation programme. Views expressed on this page are those of CENmat only.