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Title
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Fabrication of a stable, switchable An/SAM-Au electrode with tunable electron transfer and excellent electrochemical properties
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Type
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JournalPaper
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Keywords
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Switchable electrode, Anthracene (An), Self-assembled monolayers (SAMs), Electrochemical impedance spectroscopy, Gold electrode, 1-Dodecanthio
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Abstract
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This paper describes the electrochemical properties, such as electrode reactivity, and interfacial capacitance of an anthracene/self-assembled monolayer (An/SAM) Au electrode prepared through controllable immersion of the dodecanethiol (C12SH) SAM-Au electrode in a THF solution of anthracene (An). The C12SH SAM almost totally blocks heterogeneous electron transfer between the bare Au electrode and Fe(CN)6 3−/4− in solution, but adsorption of the An molecules onto the SAM-Au electrode restores electron transfer. The prepared An/SAM-Au electrode possesses good reactivity without a remarkable barrier to heterogeneous electron transfer. On the other hand, the electroactive form of the An/SAM-Au electrode can be converted back to the non-electroactive form by immersing the electrode into pure THF.
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Researchers
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Sahar Rashid-Nadimi (Third Researcher), Reza Ojani (Second Researcher), Jahan Bakhsh Raoof (First Researcher)
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