A group has developed a low-cost method to produce carbon-free 'green' hydrogen via solar-powered electrolysis of seawater. A happy byproduct of the process? Potable water.

The volume of hydrogen given off is twice the volume of oxygen given off.

However, the acidic nature of H 2 S deactivates non ... Compared with conventional water electrolysis, the system reduced energy consumption by 43% at the current density of 200 mA/cm 2, offering ...