I was reading one research paper where they have calculated the specific capacitance of one electrode of supercapacitor system using integral capacitance. I did the math by dividing their mentioned carbon atoms in electrode but it does not match with their report of specific capacitance. Can someone explain?
184703_1_online.pdf (8.4 MB)
for ordered electrode they have specified that average total charge evolved at 1V potential difference is 38.6 e converting this charge into Coulomb hence multiplication with 1.6 1e-19 hence it becomes 61.76 1e-19 dividing this by 0.5V, we get 123.521e-19 F considering 10998 carbon atoms in the electrode their weight will be 2.191 1e-19 grams. hence dividing the specific capacitance comes out to be 56.37 F/g. How come they are getting 134 F/g. Can anyone explain where I am going wrong?