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Author Halley, J. W. ♦ Smith, B. B. ♦ Walbran, S. ♦ Curtiss, L. A. ♦ Rigney, R. O. ♦ Sutjianto, A. ♦ Hung, N. C. ♦ Yonco, R. M. ♦ Nagy, Z.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CHEMISTRY ♦ ELECTROLYTES ♦ REACTION KINETICS ♦ FREE ENERGY ♦ ELECTRON TRANSFER ♦ CHEMICAL REACTION KINETICS ♦ ELECTROCHEMISTRY ♦ AQUEOUS SOLUTIONS ♦ COPPER ♦ ELECTRODES ♦ OXIDATION
Abstract We describe results of experiment and theory of the cuprous{endash}cupric electron transfer rate in an aqueous solution at a copper electrode. The methods are similar to those we reported earlier for the ferrous{endash}ferric rate. The comparison strongly suggests that, in marked distinction to the ferrous{endash}ferric case, the electron transfer reaction is adiabatic. The model shows that the activation barrier is dominated by the energy required for the ion to approach the electrode, rather than by the energy required for rearrangement of the solvation shell, also in sharp distinction to the case of the ferric{endash}ferrous electron transfer at a gold electrode. Calculated activation barriers based on this image agree with the experimental results reported here. {copyright} {ital 1999 American Institute of Physics.}
ISSN 00219606
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-04-01
Publisher Place United States
Journal Journal of Chemical Physics
Volume Number 110
Issue Number 13


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