  It is shown that the consideration of the density of states variation in
nanoscale electrochemical systems yields modulations in the rate constant and
concomitant electrical currents. The proposed models extend the utility of
Marcus-Hush-Chidsey (MHC) kinetics to a larger class of materials and could be
used as a test of dimensional character. The implications of the study are of
much significance to an understanding and modulation of charge transfer
nanostructured electrodes.
