Hydrogen produced using renewable energy could help countries meet carbon-reduction targets, as it could be used in vehicles and other applications as an alternative to fossil fuels. Currently, almost all hydrogen is made using fossil fuels. Photosynthetic fuel cells that use energy from sunlight to split water molecules and produce hydrogen gas could make clean hydrogen more broadly available.
Many materials can efficiently absorb sunlight, but few of them are durable — limiting their value for photosynthetic fuel cells. “One of the big challenges is that a lot of research has focused on efficiency and less on operability,” says Francesca Toma, a researcher at Lawrence Berkeley National Laboratory (LBL). “Addressing stability is becoming a pressing issue.”
A recent study from researchers at LBL, Lawrence Livermore National Laboratory, and the Univ. of Michigan reveals how a photosynthetic material improves while in use...
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