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In situ investigation of the behaviour of a nickel electrode in alkaline solution by uv-vis and ir reflectance spectroscopies

✍ Scribed by F. Hahn; D. Floner; B. Beden; C. Lamy

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
570 KB
Volume
32
Category
Article
ISSN
0013-4686

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✦ Synopsis

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, flNi(OH),, BNiOOH and yNiOOH, and to follow their evolution depending on the electrode potential. By ir reflectance spectroscopy, information was obtained on the nature of the hydroxides (strength of the bond between OH and Ni) and on the role of water. In particular the results are in favour of an hydrated oxide structure for the so called oxyhydroxides.

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In situ uv visible reflectance spectrosc
In situ uv visible reflectance spectroscopic investigation of the nickel electrode-alkaline solution interface
✍ F. Hahn; B. Beden; M.J. Croissant; C. Lamy πŸ“‚ Article πŸ“… 1986 πŸ› Elsevier Science 🌐 English βš– 687 KB

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