Nickel(111)/alkaline electrolyte interface

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

*この研究の対応する著者

研究成果: Conference article査読

抄録

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.

本文言語English
ページ(範囲)35-43
ページ数9
ジャーナルProceedings - The Electrochemical Society
90
4
出版ステータスPublished - 1990 12 1
外部発表はい
イベントProceedings of the Symposium on Nickel Hydroxide Electrodes - Hollywood, FL, USA
継続期間: 1989 10 161989 10 18

ASJC Scopus subject areas

  • 工学(全般)

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