Measuring local pH in electrochemistry

Current Opinion in Electrochemistry, vol. 25, pp. 100649

Abstract

Localized pH measurements are important in various areas of electrochemistry, from corrosion to bio-electrochemistry and electrocatalysis. Different techniques are available to perform these measurements and offer numerous possibilities in terms of spatial and temporal resolution, sensitivity, and precision. In this brief review we present the recent progress made and summarize the main techniques available for localized pH measurements in electrochemistry such as scanning probe techniques (SECM, SICM, SIET), laser (confocal) fluorescence microscopy, rotating ring-disc electrode (RRDE) voltammetry, and infra-red spectroscopy, among others.

Authors 2

1. Mariana C. O. Monteiro Aachen

   Leiden University

   Affiliation as printed

   Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, Leiden, 2300 RA, the Netherlands

2. Marc T. M. Koper corresponding Aachen

   Leiden University

   Affiliation as printed

   Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, Leiden, 2300 RA, the Netherlands