Electrolyte that doesn't react with ZnO for electrolysis of water

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The discussion centers on finding an electrolyte suitable for water electrolysis that does not react with zinc oxide (ZnO). While sodium hydroxide (NaOH) and potassium hydroxide (KOH) are effective electrolytes, they interact with ZnO. Sodium sulfate is suggested as a potential alternative, with participants emphasizing the need for a neutral electrolyte due to ZnO's amphoteric nature. It is noted that salts of strong acids and bases may be viable, provided they contain stable anions that resist oxidation. Recommendations include sulfates of sodium, lithium, and potassium, as well as perchlorates, though the latter may be more costly.
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Does anybody know electrolyte that doesn't react with ZnO for electrolysis of water? NaOH and KOH is good electrolyte for electrolysis of water, but it react with ZnO. Thanks.:smile:
 
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Sodium sulfate?
 
Thanks, I will try using sodium sulfate but are there any more possible electrolytes?
 
You need something that is neutral, as ZnO is amphoteric. Most salts of strong acids and strong bases will be neutral in solutions (or close to neutral) - but you need a stable anion, that would not get oxidized, which means of the obvious ones chlorides are out of the question. Sulfates of sodium, lithium, potassium sound best to me, perhaps perchlorates would be good as well - but definitely more expensive..
 

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