Electrocatalytic properties of metal adatoms in a potential range negative to Nernstian bulk deposition

Xuekun Xing; Daniel Alberto Scherson

doi:10.1016/0022-0728(89)85042-9

Electrocatalytic properties of metal adatoms in a potential range negative to Nernstian bulk deposition

Xuekun Xing, Daniel Alberto Scherson

Research output: Contribution to journal › Article

23 Citations (Scopus)

Abstract

The formation of submonolayers of Cu adatoms on polycrystalline Au in 0.1 M HClO₄ solutions containing only perchlorate anions has been found to proceed at unusually slow rates. This has made it possible to examine the electrocatalytic activity of submonolayer coverages of Cu adatoms exhibiting UPD like properties at potentials more negative than Cu bulk deposition. Rotating ring disk measurements have provided evidence that such layers show electrocatalytic properties for the reduction of nitrate. This process proceeds by a parallel mechanism yielding nitrite as one of the intermediates.

Original language	English
Pages (from-to)	273-284
Number of pages	12
Journal	Journal of Electroanalytical Chemistry
Volume	270
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-0728(89)85042-9
Publication status	Published - 1989 Oct 10
Externally published	Yes

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ASJC Scopus subject areas

Analytical Chemistry
Chemical Engineering(all)
Electrochemistry

Cite this

Xing, X., & Scherson, D. A. (1989). Electrocatalytic properties of metal adatoms in a potential range negative to Nernstian bulk deposition. Journal of Electroanalytical Chemistry, 270(1-2), 273-284. https://doi.org/10.1016/0022-0728(89)85042-9

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AB - The formation of submonolayers of Cu adatoms on polycrystalline Au in 0.1 M HClO4 solutions containing only perchlorate anions has been found to proceed at unusually slow rates. This has made it possible to examine the electrocatalytic activity of submonolayer coverages of Cu adatoms exhibiting UPD like properties at potentials more negative than Cu bulk deposition. Rotating ring disk measurements have provided evidence that such layers show electrocatalytic properties for the reduction of nitrate. This process proceeds by a parallel mechanism yielding nitrite as one of the intermediates.

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Access to Document

10.1016/0022-0728(89)85042-9