A Cationic Rectifier Based on a Graphene Oxide Covered Microhole : Theory and Experiment

Material type: 文書・図像類

Author: Budi, Riza Putraほか

Publisher: ACS

Publication date: 2019-01-14

Material Format: Digital

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Note (General)：: Cation transport through nano-channels in graphene oxide can be rectified to give ionic diode devices for future applications for example in desalinat...

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Material Type: 文書・図像類
Title: A Cationic Rectifier Based on a Graphene Oxide Covered Microhole : Theory and Experiment
Author/Editor: Budi, Riza Putra
Koichi, Jeremiah Aoki
Jingyuan, Chen
Frank, Marken
Author Heading: Budi, Riza Putra
Koichi, Jeremiah Aoki
Jingyuan, Chen
Frank, Marken
Publication, Distribution, etc.: ACS
Publication Date: 2019-01-14
Publication Date (W3CDTF): 2019-01-14
Periodical title: Langmuir
No. or year of volume/issue: 35 6
Volume: 35
Issue: 6
Pages: 2055-2065
Text Language Code: eng
Subject Heading: desalination
voltammetry
amplifier
transistor
iontronics
molecular pump
Target Audience: 一般
Note (General): Cation transport through nano-channels in graphene oxide can be rectified to give ionic diode devices for future applications for example in desalination. A film of graphene oxide is applied to a 6 m thick poly-ethylene-terephthalate (PET) substrate with 20 m diameter microhole and immersed in aqueous HCl solution. Strong diode effects are observed even at high ionic strength (0.5 M). Switching between open and closed states, microhole size effects, and time dependent phenomena are explained based on a simplified theoretical model focusing on the field-driven transport within the microhole region. In aqueous NaCl, competition between Na+ transport and field-driven heterolytic water splitting are observed, but shown to be significant only at low ionic strength. Therefore, nanostructured graphene oxide is demonstrated to exhibit close to ideal behavior for future application in ionic diode desalination of seawater.
Access Restrictions: 限定公開
Related Material (DOI): 10.1021/acs.langmuir.8b03223
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