Recent content by hitech1

good day. I have settled the issue, thanks for all the inputs from you guys. i used impedance spectroscopy for the activation energy calculation and it did suit for me well.

I was not really sure about that. For now I will continue with the measurements and try to see whether I will arrive at a similar result.

by the way, if ill get negative values that way, is it supposed to be between -1 and 0 only? but from the paper, the range in the y-axis (log i) is -2.5 to -4. it doesn't seem to add up...

i see. thanks for the enlightenment.

if that is the case, for example if my temperatures are 30oC, 35oC,40oC,...,60oC; I will have I(35oC)/I(30oC), I(40oC)/I(30oC),...,I(60oC)/I(30oC)? that being the case, there would have been no negative values on the log i - axis since an increasing temperature normally increases current...

Thank you for the reply. This is the paper I am referring to : Electrooxidation of methanol on platinum doped polyaniline electrodes: deposition potential and temperature effect here is the linkk ...

I am doing a catalytic study on my Pt nanoparticles. My experiment set-up is a three-electrode cell with sulfuric acid as electrolyte for methanol electrooxidation reaction. Now, i want to calculate the apparent activation energy and for that I need to get the voltammograms at various...