title: Comparison of the performance of an array of nanoband electrodes with a macro electrode with similar overall area.
abstract: The performance of two electrode architectures with broadly similar overall active electrode areas are examined. The first is an electrode comprising a single contiguous area (a disc) and the second is an electrode in which the cumulative electrode area is dispersed over a wide area as a 50 nm thickness platinum nanoband. A direct comparison of the electrochemical performance of these two electrodes has been made. The relatively simple nanoband electrode architecture is shown to have benefits, including two orders of magnitude greater mass transport limited currents, the ability to measure faster electrode kinetics (by a similar factor), a three orders of magnitude lowering of the Limit of Detection and a significantly reduced susceptibility to hydrodynamic perturbations. The consequences and implications of these performance characteristics on the uses of such a nanoband electrode have been considered.
authors.affiliation: School of Physics and Astronomy, Manchester University, Oxford Road, Manchester, M13 9PL, UK.
authors.forename: Neville J
authors.initials: NJ
authors.lastname: Freeman
authors.forename: Reshma
authors.initials: R
authors.lastname: Sultana
authors.forename: Naser
authors.initials: N
authors.lastname: Reza
authors.forename: Helena
authors.initials: H
authors.lastname: Woodvine
authors.forename: Jonathan G
authors.initials: JG
authors.lastname: Terry
authors.forename: Anthony J
authors.initials: AJ
authors.lastname: Walton
authors.forename: Charlotte L
authors.initials: CL
authors.lastname: Brady
authors.forename: Ilka
authors.initials: I
authors.lastname: Schmueser
authors.forename: Andrew R
authors.initials: AR
authors.lastname: Mount