Figure 11 – uploaded by Jeya Bharathi S Ram

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Fig. 12 Graphical plot of circular slotted (top) and circular toothed (bottom) geometry of WE — Figure 12 Graphical plot of circular slotted (top) and circular toothed (bottom) geometry of WE

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Fig. 3 Circular toothed and circular slotted geometry of WE Fig. 2 Circular and square shaped geometry of WE

Fig. 4 Circular sharp edged and star geometry of WE

Fig. 5 Circular zigzag and Fibonacci geometry of WE

Fig. | Three electrode arrangement of electrolytic cell [2]

ay =Concentration profiles of different geometries From equation (5), it is seen that the peak current not only depends on the concentration but also on electrode surface area and scan rate. The influence of different electrode geometry on the output current is mainly focused and analyzed by keeping the above parameters such as concentration, electrode surface area, and scan rate to be constant. After many trials, the scan rate is chosen in the range of 0.01 to 0.001 V/s. These lower scan rates produced currents even in milliamperes. It is also found that higher scan rates resulted in adsorption of species that produced a modified cyclic voltammogram graph.

Fig. 6 SP of circular(top), square(bottom) shaped geometry of WE Fig. 7 SP of circular toothed(top), circular slotted (bottom) shaped geometry of WE

Fig. 8 SP of circular sharp edged(top), star (bottom) shaped geometry of WE

Fig. 9 SP of circular zigzag(top), fibonocci (bottom) shaped geometry of WE

The Fibonacci geometry of WE delivers the highest peak current. From concentration profile figures 6,7,8,9,it is observed that the reaction is higher atthe electrode

Fig. 10 Legends for the cyclic voltammetry graphs plotted

Fig. 13 Graphical plot of circular sharp edged(top), and star (bottom) geometry of WE

Fig.14 Graphical plot of Zigzag (top) and Fibonacci (bottom) geometry of WE TABLE II] PEAK CURRENT VALUE FOR VAR\YING GEOMETRY

Fig. 15Graphical plot of concentration swept between 0.1 and 1 mmol/L for the Fibonacci geometry of WE (top) & Legends for it (down) boundary than in the surface. This is because the bull solution reaches the boundary first and hence higher boundary (1.e., perimeter) gives more reaction and hence higher current. So, the perimeter of different geometries i: also calculated and tabulated in TABLE II. From the Table, it is seen that for same area the geometry witt higher perimeter gives the better peak current i.e., peak current output is directly influenced by perimeter 0! working electrode.