Tokyo University Finds a Solution to the Problems of Hydrogen Fuel Production: Rust!
For decades, scientists have looked for an inexpensive, efficient and safe way to produce hydrogen. One of the most interesting methods to achieve this is through the use of solar energy: light is used to accelerate the reaction that causes water molecules to divide into oxygen and hydrogen. In this method, the most popular catalyst is titanium dioxide, but new research has found a substitute that is not only cheaper but also up to 25 times more efficient: rust.