## 3 Results
### Output Potential and Voltammetry
#### 3.2.3 Acidic Fuel Cell  
For all the electrode combinations in the Acidic Electrolyte 1 and 2, the cell output's potential values are summarized in Tables 7 and 8. The open circuit potentials for the electrodes that generate high cell output potentials can be found in Figure 7. The potentials were adjusted by +209 mV for the Ag/AgCl reference electrode. Figure 9 summarizes the cyclic voltammograms for all the electrodes in the Acidic Electrolyte 1. The voltammograms for the same electrodes in Acidic Electrolyte 2 showed similar results as Acidic Electrolyte 1.  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline - & **Ag** & **Pt** & **GC** & **Sb** \\ \hline
**Ag** & x & x & x & x \\
**Pt** & \(-\)460 & x & x & x \\
**GC** & \(-\)112 & \(-\)5.1 & x & x \\
**Sb** & 51 & 521 & 78 & x \\
**Ta** & \(-\)19 & 457 & 78 & \(-\)40 \\ \hline \hline \end{tabular}
\end{table}
Table 7: Fuel cell output potentials (mV) obtained from all electrode combinations using Acidic Electrolyte 1. Cells are formatted to visually show higher and lower values with red and blue, respectively. The further away the value is from zero, the higher the cell output potential. GC stands for glassy carbon electrode. The horizontal rows represent the positive lead and the vertical columns represent the negative lead.  
Figure 8: Cyclic voltammograms of electrodes in the Neutral Electrolyte. Graph (**a**) shows the overlap of both Sb and Ta electrode voltammograms in the Neutral Electrolyte containing hydrogen peroxide. Graphs (**b**,**c**) show voltammograms for Sb and Ta electrodes in the Neutral Electrolyte with and without hydrogen peroxide. Testing the electrodes without hydrogen peroxide present in the electrolyte demonstrates the additional reactivity the compound adds to the reaction.  
Figure 9: Cyclic voltammograms of electrodes in Acidic Electrolyte 1. Graph (**a**) shows overlap of both Sb and Ta electrode voltammograms in Acidic Electrode 1 containing hydrogen peroxide. Graphs (**b**,**c**) show voltammograms for Sb and Ta electrodes in Acidic Electrolyte 1 with and without hydrogen peroxide.  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**-** & **Ag** & **Pt** & **GC** & **Sb** \\ \hline
**Pt** & \(-640\) & x & x & x \\
**GC** & \(-370\) & \(40\) & x & x \\
**Sb** & \(-21\) & \(574\) & \(295\) & x \\
**Ta** & \(-26\) & \(621\) & \(340\) & \(68\) \\ \hline \hline \end{tabular}
\end{table}
Table 8: Fuel cell output potentials (mV) obtained from all electrode combinations using Acidic Electrolyte 2. Cells are formatted to visually show higher and lower values with red and blue, respectively. The further away the value is from zero, the higher the cell output potential. GC stands for glassy carbon electrode. The horizontal rows represent the positive lead and the vertical columns represent the negative lead.  
The relative peak power destiny values for each novel electrode was calculated using their voltammogram's highest current densities and the corresponding potential values. This differs from the conventional method of constructing power density and polarization curves. Table 9 shows the calculated peak power density values for alkaline and acidic peroxide electrolytes. The Neutral Electrolyte results were not included due to its instability and anomalistic voltammograms.