Hydrogen fuel could be a good alternative to conventional ones as it is zero-emission and could be considered as environmentally friendly. But there comes the question of is it reliable enough? According to Wikipedia, “Hydrogen production always requires more energy than can be retrieved from the gas as a fuel later on”. It’s quite confusing, right? So why bother you with this information?
A research team at the University of California has developed a novel device that uses only sunlight and wastewater to produce hydrogen gas and it could be considered to provide both sustainable energy source and improved wastewater treatment. The hybrid device combines a microbial fuel cell (MFC) and a solar photoelectrochemical cell (PEC), which separated generate electricity, but working together provide a self-driven process driving electrolysis of water which splits it to hydrogen and oxygen. In the MFC component, bacteria degrade organic matter in the wastewater, generating electricity, which is then delivered to the PEC component to assist the solar –powered electrolysis of water. Sounds promising! More information you can find on Science Daily.
via Science Daily