Electrochemical kinetics and dimensional considerations at the nanoscale

TL;DR

This paper explores how nanoscale effects influence electrochemical reaction rates by considering density of states variations, extending Marcus-Hush-Chidsey kinetics to nanostructured electrodes for better understanding and control.

Contribution

It introduces models that incorporate density of states variations at the nanoscale, expanding the applicability of MHC kinetics to new material classes.

Findings

Density of states variations modulate rate constants and currents.

Models extend MHC kinetics to nanostructured materials.

Implications for charge transfer in nanoscale electrodes.

Abstract

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.