Advantages of Microelectrodes use for CV measurement

Micro Pt electrode 10µm

1. Little distortion from dissipation in potential or electrification flow
2. Combination of PC enables to process at high sweep rate
3. Analyzable short-lived intermediate in electrode reaction
4. Mearsurable without support electrolyte
5. Excellent measuring accuracy because of little influence of noise arising from electrification flow
6. Smooth diffusion enough to obtain stationary state
 


E(V) vs Ag/Ag+     Figure in right : the result of
detection of a chemical product
in subsequent reaction. By the
faster sweep at 104 V/S, the peak
(which is shown when the
short-lived intermediate is
reduced into the former
substance) can be observed
before the intermediate
vanishes.



Kosuke Izutsu, Electrochemistry in Nonaqueous
Solutions, WILEY-VCH, 2002.