Nickel(111)/alkaline electrolyte interface

Kuilong Wang, G. S. Chottiner, Daniel Alberto Scherson, Margaret Reid

Research output: Contribution to journalConference article

Abstract

The electrochemical properties of Ni(111) prepared and characterized by surface analytical techniques have been examined in alkaline media by cyclic voltammetry using an ultra high vacuum (UHV) - electrochemical cell transfer system designed and built in this laboratory. Prior to the transfer, the Ni(111) surface was exposed to saturation coverages of CO in UHV in an attempt to protect the surface from possible contamination with other gases during the transfer and to prevent the surface from undergoing spontaneous oxidation upon contact with the electrolyte. On the basis of the results obtained it was concluded that: Ni(111) surfaces displaying c(4×2) LEED patterns after exposure to saturation coverages of CO at room temperature react with water and/or adventitious O2 immediately prior to contact with the electrolyte. Temperature programmed desorption of such exposed surfaces yields CO2 and water as the only products suggesting that the layer consists of some form of hydrated carbonate denoted as reacted c(4×2)CO/Ni(111). The reacted c(4×2)CO/Ni(111) appears to protect the surface from spontaneous oxidation upon contact with the electrolyte.

Original languageEnglish
Pages (from-to)35-43
Number of pages9
JournalProceedings - The Electrochemical Society
Volume90
Issue number4
Publication statusPublished - 1990 Dec 1
Externally publishedYes
EventProceedings of the Symposium on Nickel Hydroxide Electrodes - Hollywood, FL, USA
Duration: 1989 Oct 161989 Oct 18

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Wang, K., Chottiner, G. S., Scherson, D. A., & Reid, M. (1990). Nickel(111)/alkaline electrolyte interface. Proceedings - The Electrochemical Society, 90(4), 35-43.