Which electrolyte is good for electrolyzing water to produce hydrogen?

Excuse me, what is the essence of water electrolysis?

It is that hydrogen ions are reduced, the valence of electrons is reduced, and hydrogen is generated . Hydroxyl radicals are oxidized, valence. of electrons is lost and the valence is increased, generating oxygen.

So, when choosing an electrolyte, it is better to choose an electrolyte that can improve the degree of ionization water or an electrolyte that can be supplied by itself, such as sulfuric acid or sodium hydroxide.

What the person above said is not scientific. According to the redox principle, chlorine ions will lose electrons before hydroxide and generate chlorine gas.

When selecting electrodes, it is better to use graphite as the electrode or carbon rod, because carbon The outermost electronic layer has 4 electrons, which is not very active.

Teach yourself a little method: batteriess larger ones contain carbon rods.