Heterogeneous Electron Transfer Steady-State Methods

HETEROGENEOUS ELECTRON TRANSFER STEADY-STATE METHODS... 

Heterogeneous Electron Transfer Steady-State Methods... 

One can see from Eq. (36) that at L 1, mo D/a (as for a microdisk electrode alone), but at L 1, mo D/d, i.e., a thin-layer cell (TLC)-type behavior. This suggests that the SECM should be useful for studying rapid heterogeneous electron transfer kinetics. By decreasing the tip/substrate distance, the mass-transport rate can be increased sufficiently for quantitative characterization of the electron-transfer kinetics, preserving the advantages of steady-state methods, i.e., the absence of problems associated with ohmic drop, adsorption, and charging current. 

Tab. 3 Rate constants for heterogeneous electron transfer determined using steady state methods...

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