How could I determine capacitance of an electrolytic cell?

  • Thread starter Thread starter hobbs125
  • Start date Start date
  • Tags Tags
    Capacitance Cell
AI Thread Summary
To determine the capacitance of an electrolytic cell containing water, hydrogen, and oxygen ions, cyclic voltammetry is suggested as a potential method, though the user is still learning about it. The discussion emphasizes the need to experimentally determine electrical capacitance by exploiting its definition. One recommended approach is to apply an AC voltage and analyze how reactance changes with frequency. Alternatively, for less precision, a DC voltage can be applied to observe how current varies over time. This approach allows for the measurement of both double layer capacitance and pseudocapacitance present in the cell.
hobbs125
Messages
108
Reaction score
0
I am doing a lab experiment in which I need to find the capacitance of an electrolytic cell containing water and of course hydrogen and oxygen ions.

The cell has both a double layer capacitance as well as a pseudicapacitance.

My initial studies show that I would use cyclic voltammetry, but I am still learning about it..

What method(s) would be best to determine or measure the cells capacitance?

Thanks in advance
 
Chemistry news on Phys.org
You have to determine the electrical capacitance experimentally?
You'd exploit the definition of capacitance and design the experment accordingly.
I'd apply an AC voltage and see how the reactance varies with frequency.
If you don't need a lot of accuracy, you could apply a DC voltage and find how the current varies with time.
 
  • Like
Likes 1 person
I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
Back
Top