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Where can I get voltammetry testing performed?

  1. Aug 3, 2013 #1
    I have an electrochemical cell I need to get testing done on (namely cyclic voltammetry).

    Problem is, I have no idea where to go?

    Any suggestions?

    I was thinking of contacting the local State University Chemistry department but I doubt it if they would do testing for someone who is not a student???
     
  2. jcsd
  3. Aug 3, 2013 #2

    mfb

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    Voltage/Current curves? I would ask the physics department, too, it looks like this could be done with standard equipment and not too much time.
     
  4. Aug 3, 2013 #3
    Hmm, Is there anyway I could perform the tests using an oscilloscope?

    I have a propscope (USB oscilloscope).

    I am trying to determine the total capacitance (EDL and pseudo) of an electrochemical capacitor.
     
  5. Aug 13, 2013 #4
    I doubt you can do it using Osciloscope. however you can make a small setup at low cost using opamp though. All you need to supply some voltage and recieve the current while maintaining a potential into the solution using feedback. You need some idea though.
     
  6. Aug 14, 2013 #5

    chemisttree

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    Find some equipment manufacturers and ask if they could perform the work or if they know if any of their customers could. Potentiostats are NOT trivial pieces of equipment that you can cobble together easily.
     
  7. Aug 14, 2013 #6
    if you are not looking for too many functionality, yes a simple potentiostat able to do Cyclic voltammetry is NOT a rocket science....But as i said you need some idea ofcourse...if not better look for permission in a nearby laboratory
     
  8. Aug 14, 2013 #7

    chemisttree

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    Hmmm, you need to construct a potentiostat that allows you to control potential, sweep rate and measure tiny currents accurately. I suppose it will need to be sized appropriately for the conductivity of the solution and surface area of the electrodes. I guess your idea of an opamp and mine are a bit different. I prefer to cause it to be done by others more knowledgeable than me.
     
  9. Aug 14, 2013 #8

    mfb

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    According to a quick google search, some standard commercial power supplies can be used for that. They are not cheap, but they can be found in many electronics labs. I don't want to advertise manufacturers, however.
     
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