Enhancement of the Negative Capacitance Associated with the Dissolution of Silver by Salt Concentrations by Means of Anodic Stripping Voltammetry

Material type: 文書・図像類

Author: Wang, Ruほか

Publisher: MDPI

Publication date: 2022-07-25

Material Format: Digital

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Note (General)：: The amount of anodically dissolved charge of silver by linear sweep stripping voltammetry has been observed to be smaller than that of the potentiosta...

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Material Type: 文書・図像類
Title: Enhancement of the Negative Capacitance Associated with the Dissolution of Silver by Salt Concentrations by Means of Anodic Stripping Voltammetry
Author/Editor: Wang, Ru
Aoki, Koichi Jeremiah
Chen, Jingyuan
Author Heading: Wang, Ru
Aoki, Koichi Jeremiah
Chen, Jingyuan
Publication, Distribution, etc.: MDPI
Publication Date: 2022-07-25
Publication Date (W3CDTF): 2022-07-25
Alternative Title: Enhancement of the Negative Capacitance Associated with the Dissolution of Silver by Salt Concentrations by Means of Anodic Stripping Voltammetry
Periodical title: Electrochem
No. or year of volume/issue: 3 3
Volume: 3
Issue: 3
Pages: 397-406
ISSN (Periodical Title): ISSN : 2673-3293
Text Language Code: eng
Subject Heading: anodic stripping voltammetry of silver ion
negative capacitance associated with redox reactions
lifespan of dipoles
low concentration of salts
Target Audience: 一般
Note (General): The amount of anodically dissolved charge of silver by linear sweep stripping voltammetry has been observed to be smaller than that of the potentiostatically deposited charge. The imbalance in the charge is opposite to the participation in the double-layer capacitance. This can be explained in terms of the negative capacitive current, which is caused by dipoles of generated redox charge (Ag+ ) with counterions (NO3 −). Lower concentrations of counterions may suppress the capacitance to retain the equality of the charge. This prediction is examined in this work by the oxidation of silver film at various concentrations of NO3 − by anodic stripping voltammetry. The capacitance decreased with a decrease in the salt concentrations less than 0.05 mol dm−3 . Low concentrations of salts prevent loss of the anodic charge in electroanalysis. This dependence was related with the lifespan of generated silver nitrate dipoles and is described theoretically.
source:https://www.mdpi.com/2673-3293/3/3/27
Source: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=29371&item_no=1&attribute_id=22&file_no=1
https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=29371&item_no=1&attribute_id=22&file_no=1
Access Restrictions: 限定公開
Rights (production): cc-by
CC BY
Related Material (DOI): 10.3390/electrochem3030027
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