One of the most promising forms of artificial photosynthesis involves using solar energy to split liquid water to produce oxygen and hydrogen gas, which can be stored and used as a clean fuel. And one of the most promising semiconductor materials for such a task is gallium phosphide (GaP), which can convert sunlight into an electrical charge and also split water. Unfortunately, the material is expensive, but researchers have now used a processed form of gallium phosphide to create a prototype solar fuel cell that not only requires 10,000 times less of the precious material, but also boosts the hydrogen yield by a factor of 10.
Toyota and Hino Motors have begun testing a jointly-developed fuel cell bus in Tokyo, Japan. The brief test is designed to will help Toyota evaluate and improve the technology ahead of a possible market launch.
When people suggest possible uses for electric multicopter drones, it
frequently seems like they're forgetting something – presently, most
such aircraft can only fly for a maximum of around 25 minutes per
battery charge. Horizon Energy Systems, however, is developing a quadcopter that should do a lot better. Known as the Hycopter, the fuel cell-powered drone is hoped to be capable of 4-hour flight times once completed.