How to make hydrogen on the cheap

There are many challenges to achieving the dreamed-about hydrogen economy, but one of them – the ability to make hydrogen from water cheaply and at scale – could be a little closer to being overcome. If it indeed is, renewable energy could become a whole lot more economical.

Rust and sunshine could replace fossil fuels

Using sunlight and ultrathin films of iron oxide, or rust, Technion-Israel Institute of Technology researchers have found a new way to split water molecules into hydrogen and oxygen.