Ulm and Jena Researchers Develop Copolymer for On-Demand Hydrogen Production from Solar Energy
HYDROGENENERGY STORAGESOLAR ENERGY
Researchers from the Universities of Ulm and Jena have developed a copolymer that can store solar energy and convert it to hydrogen on demand. This reversible process allows for energy storage over days and operates even in darkness.
The system achieves over 80% efficiency and utilizes a pH switch for reactivation. The findings, published in Nature Communications, could enhance green hydrogen production for industrial applications.

Feb 27, 2026, 6:13 AM