Evaluation technique of kinetic parameters for irreversible charge transfer reactions from steady-state voltammograms at microdisk electrodes

Material type: 文書・図像類

Author: AOKI, Koichi

Publisher: Elsevier Ltd

Publication date: 2005-05

Material Format: Digital

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Note (General)：: An explicit approximate expression for half-wave potentials of irreversible steady-state current-voltage curves at a microdisk electrode was derived f...

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Material Type: 文書・図像類
Title: Evaluation technique of kinetic parameters for irreversible charge transfer reactions from steady-state voltammograms at microdisk electrodes
Author/Editor: AOKI, Koichi
Author Heading: AOKI, Koichi
Publication, Distribution, etc.: Elsevier Ltd
Publication Date: 2005-05
Publication Date (W3CDTF): 2005-05
Periodical title: Electrochemistry Communications
No. or year of volume/issue: 7 5
Volume: 7
Issue: 5
Pages: 523-527
ISSN (Periodical Title): ISSN : 1388-2481
Text Language Code: eng
Subject Heading: microdisk electrode
electrode kinetics
hemispherical electrode
transfer rate constant
steady-state current
half-wave potential
Target Audience: 一般
Note (General): An explicit approximate expression for half-wave potentials of irreversible steady-state current-voltage curves at a microdisk electrode was derived from the diffusion equation and the Butler-Volmer equation on the basis of the previous analytical method (J. E. C., 235 (1987) 87). The plot of the half-wave potential, E1/2, against ln(1-exp(-(E1/2- Eo))F/RT)] showed a linear relation with the slope of RT/αF, irrespective of the values of the kinetic parameters, where a is the radius of the electrode and α is the transfer coefficient. Values on the both axis in this plot are readily accessible from the voltammograms. The intercept gave the rate constant. Values of kinetic parameters obtained from the disk model were very close to those from the hemisphere model although there is big difference in current distribution on the two model electrodes.
Source: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=22127&item_no=1&attribute_id=22&file_no=1
https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=22127&item_no=1&attribute_id=22&file_no=1
Access Restrictions: 限定公開
Related Material (DOI): 10.1016/j.elecom.2005.03.006
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ