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In situ uv visible reflectance spectroscopic investigation of the nickel electrode-alkaline solution interface

✍ Scribed by F. Hahn; B. Beden; M.J. Croissant; C. Lamy

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
687 KB
Volume
31
Category
Article
ISSN
0013-4686

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✦ Synopsis

An in situ uv visible reflectance spectroscopic technique is used to investigate the nickel electrode-alkaline solutiuh interface. It is shown that by recording the change in relative reflectivity of the surface vs the potential applied to the electrode, at various fixed wavelengths, it is possible to get the spectra of superGal layers.

Reflection-absorption spectra were thus obtained respectively for the hydroxide aNi( (two maxima at 360 and 500 nm) and the oxyhydroxide NiOOH (broad band with a maximum at 500-550 nm), providing new insights concerning the reversibility of some of the eleetrochemieal processes which occur on the electrode surface when varying the potential.

πŸ“œ SIMILAR VOLUMES

In situ investigation of the behaviour o
In situ investigation of the behaviour of a nickel electrode in alkaline solution by uv-vis and ir reflectance spectroscopies
✍ F. Hahn; D. Floner; B. Beden; C. Lamy πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 English βš– 570 KB

In situ spectroscopic techniques were used to investigate the nickel electrode-alkaline solution interface. By uv-ois reflectance spectroscopy, it was possibie to characterize (by their respective absorption spectra) some of the oxygenated species formed at the electrode surface, namely aNi(OHh, flN