Artificial Photosynthesis Bypasses Batteries, Converting Solar Energy into Hydrogen
…California-based company [HyperSolar] thinks it can crack the code on hydrogen production with a solar-powered electrolysis solution.
[It takes] energy from the sun, and uses only that to split water molecules and harvest the hydrogen. This would have advantages over traditional solar power because the hydrogen produced would store energy much more efficiently than batteries, which are notoriously slow to improve.
…You need 1.5 volts to realistically split water molecules, and HyperSolar has been improving its system at a startling rate. It was only 8 months ago that HyperSolar’s very inexpensive solar cell technology was only putting out 0.2 volts. Three months ago it reached 0.75 volts, which makes for a rapid increase in efficiency when the new 1 volt number is figured in.
HyperSolar’s technology is based on a proprietary nanoparticle that integrates photovoltaics bonded to chemical catalysts to generate hydrogen. The company seems convinced it will reach 1.5 volts without a large increase in cost.
HyperSolar has chosen to make much of its development process public. Is that confidence, or overconfidence? Time will tell.
(via Artificial photosynthesis hits milestone in producing cheap, clean hydrogen from water | ExtremeTech)