Hongjie Dai and colleagues have developed a cheap, emissions-free device that uses a 1.5-volt battery to split water into hydrogen and oxygen. The hydrogen gas could be used to power fuel ce... Read more
Stanford researchers have developed an inexpensive device that uses light to split water into oxygen and clean-burning hydrogen. The goal is to supplement solar cells with hydrogen-powered f... Read more
Stanford University scientists have breathed new life into the nickel-iron battery, a rechargeable technology developed by Thomas Edison more than a century ago. Designed in the early 1900s... Read more
Carbon nanotubes could be an excellent alternative to the platinum, palladium and other precious-metal catalysts now in use Platinum catalysts in fuel cells are too expensive for larg... Read more