Traditional electrolysis of water to produce hydrogen and oxygen

Add electrolyte to conduct current and electrolyze and dissociate water molecules. The negative electrode of the DC electrode releases hydrogen gas; The positive electrode releases oxygen. Hydrogen and oxygen can be collected using the drainage gas collection method, with a volume ratio of 2:1. The above electrolyte can be an ionic compound of strong acid and strong base, such as sodium chloride, but in order to avoid the generation of chlorine gas at the anode, sodium hydroxide should be used as the electrolyte.
Hydrogen is not only considered as a fuel, but also envisioned as a direct substitute for electricity. It can be transported in the form of natural gas through underground pipelines. Unlike electricity, it can be stored (usually in liquid form at low temperatures), gas can be continuously supplied, and when energy demand is high, it can be stored in advance. Hydrogen will generate heat energy through combustion or be used in fuel cells to produce electricity.