An electrochemical cell for 2-dimensional surface optical reflectance during anodization and cyclic voltammetry

We have developed an electrochemical cell for in situ 2-Dimensional Surface Optical Reflectance (2D-SOR) studies during anodization and cyclic voltammetry. The 2D-SOR signal was recorded from electrodes made of polycrystalline Al, Au(111), and Pt(100) single crystals. The changes can be followed at...

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Veröffentlicht in:Review of scientific instruments 2020-04, Vol.91 (4), p.044101-044101
Hauptverfasser: Linpé, W., Harlow, G. S., Larsson, A., Abbondanza, G., Rämisch, L., Pfaff, S., Zetterberg, J., Evertsson, J., Lundgren, E.
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Sprache:eng
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Zusammenfassung:We have developed an electrochemical cell for in situ 2-Dimensional Surface Optical Reflectance (2D-SOR) studies during anodization and cyclic voltammetry. The 2D-SOR signal was recorded from electrodes made of polycrystalline Al, Au(111), and Pt(100) single crystals. The changes can be followed at a video rate acquisition frequency of 200 Hz and demonstrate a strong contrast between oxidizing and reducing conditions. Good correlation between the 2D-SOR signal and the anodization conditions or the cyclic voltammetry current is also observed. The power of this approach is discussed, with a focus on applications in various fields of electrochemistry. The combination of 2D-SOR with other techniques, as well as its spatial resolution and sensitivity, has also been discussed.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.5133905