Arrangement of Al Ions between Ionic Liquid and Graphite Electrode Interface by AFM Force Curve Measurement
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- TABO Atsuki
- Graduate School of Engineering, Hokkaido University
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- MATSUSHIMA Hisayoshi
- Graduate School of Engineering, Hokkaido University
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- OHKUBO Takahiro
- Graduate School of Engineering, Chiba University
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- NISHIKAWA Kei
- Graduate School of Engineering, Chiba University National Institute of Materials Science (NIMS)
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- UEDA Mikito
- Graduate School of Engineering, Hokkaido University
Abstract
<p>The arrangement of ions at the interface between highly oriented pyrolytic graphite (HOPG) and Aluminum chloride–1-ehtyl-3-methylimidazolium chloride (AlCl3–EmImCl) ionic liquid was evaluated using Atomic Force Microscopy (AFM) force curve measurements. In the force curve measurements, three steps were observed towards the HOPG electrode. The width of each step was 0.3, 0.4, and 0.5 nm in order from the final arrival point. Their step widths were regarded as the thicknesses of EmIm+, Al2Cl7−, or their mixed layers. The force curve measurements at each potential demonstrated that the width of the first layer close to the HOPG tended to decrease as the potential shifted towards the less noble side.</p>
Journal
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- Electrochemistry
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Electrochemistry 92 (4), 043011-043011, 2024-04-01
The Electrochemical Society of Japan
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Details 詳細情報について
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- CRID
- 1390581148794759808
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- ISSN
- 21862451
- 13443542
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Allowed