ERC PoC SOLAR H2 - Web Catalysis UNIME - CASPE

The SOLAR-H2 project introduces a groundbreaking artificial tree (AT)-like technology for distributed, on-demand H2 production, designed for zero-carbon communities and off-grid applications. Unlike conventional electrolysers requiring high-purity water and grid electricity, this system has near-zero operational costs, leveraging solar energy and capture of reactants from the ambient.

The innovative approach integrates photo-electrocatalysis, where CO2 and H2O are converted into H2 and formic acid (FA) using sunlight. The latter acts as a hydrogen storage medium, enabling on-demand or continuous H2 production, even during the night, through catalytic decomposition. Additionally, the system ensures a closed-loop CO2 recirculation, with minimal losses compensated by external CO2 sources, making it a highly sustainable and carbon-efficient solution.  

Building upon the ERC Synergy SCOPE project, SOLAR-H2 aims to advance the technology to TRL4. This will involve scaling up to a small-scale demonstrator, improving performance and gas-diffusion electrodes as well as the cell for stable