water splitting

Researchers in the Netherlands have designed a water-splitting system with an electrochemical cell and a 25%-efficient tandem perovskite-silicon solar cell. It can reportedly achieve a solar-to-hydrogen efficiency rating of more than 21%.

University of Cambridge scientists have developed lightweight floating photocatalyst devices that produce green hydrogen and syngas. The leaf-like photoelectrochemical devices show potential for scalability.

Japanese researchers have developed a new way to improve water splitting, while South Korea has completed its largest hydrogen production complex. Scotland and England have announced new hydrogen investments, and Uzbekistan and Saudi Arabia’s ACWA Power have agreed to collaborate on hydrogen projects.

A German research team has developed a photovoltaic-electrochemical device for alkaline water electrolysis that can be linked to battery storage. The proposed system configuration can not only smoothen out the PV power fluctuations and facilitate power coupling, but also improve solar to hydrogen efficiency.

A German research team has developed a new photovoltaic-electrochemical device for alkaline water electrolysis. The prototype has an initial solar‐to‐hydrogen efficiency of approximately 7.7%.

Japanese researchers have developed a new water-splitting technology based on a photoelectrochemical system made with titanium dioxide and cobalt. Cobalt is said to be a solid alternative to noble metals such as gold and silver to improve the light-absorbing properties of titanium dioxide used for water oxidation.

The cell uses a novel approach that increases its conversion efficiency and longevity at the same time. Researchers claim it is a new world record for this type of application and highlight its importance in storing renewable energy in hydrogen to compensate for output and demand fluctuations.