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Antimony tin oxide (ATO) screen-printed electrodes and their application to spectroelectrochemistry

2018; Elsevier BV; Volume: 93; Linguagem: Inglês

10.1016/j.elecom.2018.06.012

1873-1902

Miguel Aller Pellitero, Álvaro Colina, Rosa Villa, F. Javier del Campo,

Conducting polymers and applications

Spectroelectrochemistry studies spectral changes as a function of applied potential or current. While there is no standard experimental setup, transparent electrodes are most typically used in transmission mode. Working in reflection mode forces light across the sample twice, resulting in higher sensitivities, but in turn requires the use of highly reflective electrodes. Here we present the production and characterization of screen-printed electrodes made from different antimony tin oxide (ATO) conducting particles. The resulting electrodes display excellent spectroelectrochemical properties, such as reflectivities up to 20 times higher than conventional graphite screen-printed electrodes, but with comparable electron transfer rates. These electrodes represent an attractive alternative to conventional materials and widen the choice of suitable electrode materials for electrochemistry in general and spectroelectrochemistry in particular.