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. 2015 Sep 14;6:8304. doi: 10.1038/ncomms9304

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(a) A plot of geometric area normalized charge transfer resistance (R_ct) versus applied potential, comparing between FTO_NiS and NU-1000_Ni-S electrodes. (b) A plot of electroactive surface area normalized R_ct versus applied potential, exhibiting similar R_ct values for both FTO_Ni-S and NU-1000_Ni-S electrodes. (c) A plot of double-layer capacitive current versus CV scan rate. The slope of each curve is relative to the amount of electroactive surface area of the system.