V. M. R. M. PonRani et al. / Natural Science 2 (2010) 1318-1325

Copyright © 2010 SciRes. OPEN ACCESS

1323

(d)

Figure 8. Normalized concentration v at

microelectrode. The concentrations were com-

puted using Eq.20 for some value of

12

0.001,0.005mm

12

0.001,0.005mm

and the reaction/diffusion parameter

34

0.001, 0.005 kkand for various values

of (a) 0.1

T; (b)1T; (c) 10T; (d)

100

T

Figure 9. Plot of the dimensionless current,

verses time. The current were calculated

using Eq.21 for the fixed value of 31k and

for various values of the reaction/diffusion

parameter 4

k.

Figure 10. Plot of the dimensionless current,

versus time. The current were calculated using

Eq.21 for the fixed value of 41kand for various

values of the reaction/diffusion parameter 3

k.

sponds to changes in electrode size. Further, based on

the outcome of this work it is possible to calculate the

concentration and current at cylindrical and hemispheri-

cal electrode for CE mechanism.

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