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. Author manuscript; available in PMC: 2023 Nov 1.
Published in final edited form as: J Electroanal Chem (Lausanne). 2022 Oct 3;924:116865. doi: 10.1016/j.jelechem.2022.116865

Table 3.

Calculation of the roughness factor (Rf) and electrochemically active surface area (ECSA) of the final structure formed from varying Au:Ag alloy composition. Charge under the reduction peak seen in CV was evaluated for all the different compositions. The 10:90 composition formed the hb-NPG structure with the highest roughness factor.

Composition Charge (mC) under reduction peak Mean Standard dev ECSA/cm2Rf
10:90 3.51
3.44
3.37		 3.44 0.07 7.64231.5
20:80 1.82
1.93
1.7		 1.82 0.11 4.04122.4
25:75 1.07
0.97
0.54		 1.02 0.28 2.2668.5
30:70 0.13
0.11
0.37		 0.20 0.14 0.4513.6