In situ potential difference fourier transform infrared reflection absorption spectroscopic studies of the electrochemical oxidation of adsorbed carbon monoxide on nickel in alkaline solutions

Ming Zhao; Kuilong Wang; Daniel Alberto Scherson

doi:10.1021/j100119a038

In situ potential difference fourier transform infrared reflection absorption spectroscopic studies of the electrochemical oxidation of adsorbed carbon monoxide on nickel in alkaline solutions

Ming Zhao, Kuilong Wang, Daniel Alberto Scherson^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

The spectral properties of CO adsorbed on polycrystalline nickel electrodes in 0.1 M KOH have been examined using in situ potential difference Fourier transform infrared spectroscopy. The results obtained have shown that the voltammetric peak observed in the first linear scan in the positive direction for Ni(poly)/CO(ads) surfaces prepared by a special procedure is associated with the electrochemical oxidation of bridge-bonded CO to generate solution-phase carbonate as the only detectable product. No changes in the stretching frequency of CO (v_CO) could be found as a function of potential in a region negative to the onset of CO oxidation. However, v_CO shifted monotonically toward lower wavenumbers as the coverage of CO was reduced by electrooxidative stripping.

Original language	English
Pages (from-to)	4488-4490
Number of pages	3
Journal	Journal of physical chemistry
Volume	97
Issue number	17
DOIs	https://doi.org/10.1021/j100119a038
Publication status	Published - 1993 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physical and Theoretical Chemistry

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10.1021/j100119a038

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In situ potential difference fourier transform infrared reflection absorption spectroscopic studies of the electrochemical oxidation of adsorbed carbon monoxide on nickel in alkaline solutions. / Zhao, Ming; Wang, Kuilong; Scherson, Daniel Alberto.

In: Journal of physical chemistry, Vol. 97, No. 17, 01.01.1993, p. 4488-4490.

Research output: Contribution to journal › Article › peer-review

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abstract = "The spectral properties of CO adsorbed on polycrystalline nickel electrodes in 0.1 M KOH have been examined using in situ potential difference Fourier transform infrared spectroscopy. The results obtained have shown that the voltammetric peak observed in the first linear scan in the positive direction for Ni(poly)/CO(ads) surfaces prepared by a special procedure is associated with the electrochemical oxidation of bridge-bonded CO to generate solution-phase carbonate as the only detectable product. No changes in the stretching frequency of CO (vCO) could be found as a function of potential in a region negative to the onset of CO oxidation. However, vCO shifted monotonically toward lower wavenumbers as the coverage of CO was reduced by electrooxidative stripping.",

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AU - Wang, Kuilong

AU - Scherson, Daniel Alberto

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N2 - The spectral properties of CO adsorbed on polycrystalline nickel electrodes in 0.1 M KOH have been examined using in situ potential difference Fourier transform infrared spectroscopy. The results obtained have shown that the voltammetric peak observed in the first linear scan in the positive direction for Ni(poly)/CO(ads) surfaces prepared by a special procedure is associated with the electrochemical oxidation of bridge-bonded CO to generate solution-phase carbonate as the only detectable product. No changes in the stretching frequency of CO (vCO) could be found as a function of potential in a region negative to the onset of CO oxidation. However, vCO shifted monotonically toward lower wavenumbers as the coverage of CO was reduced by electrooxidative stripping.

AB - The spectral properties of CO adsorbed on polycrystalline nickel electrodes in 0.1 M KOH have been examined using in situ potential difference Fourier transform infrared spectroscopy. The results obtained have shown that the voltammetric peak observed in the first linear scan in the positive direction for Ni(poly)/CO(ads) surfaces prepared by a special procedure is associated with the electrochemical oxidation of bridge-bonded CO to generate solution-phase carbonate as the only detectable product. No changes in the stretching frequency of CO (vCO) could be found as a function of potential in a region negative to the onset of CO oxidation. However, vCO shifted monotonically toward lower wavenumbers as the coverage of CO was reduced by electrooxidative stripping.

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In situ potential difference fourier transform infrared reflection absorption spectroscopic studies of the electrochemical oxidation of adsorbed carbon monoxide on nickel in alkaline solutions

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