08:45 〜 09:00
▲ [11a-Z12-2] Charge Transfer Enhancement by the Second Redox Mediator
キーワード：EIS, Redox Probe, Second Mediator
Introduction
Electrochemical Impedance Spectroscopy (EIS) is a method wildly used for interface measurement and has high potential in biomolecules detection. The impedances can monitor the charge-transfer between electrode and electro-chemical redox probes. Magnifying of the charge transfer process will lead to high measurement performance. [1] The selection of the redox probe depends on various parameters. Fe(CN)63-/4-, Ru(NH3)63+/2+, p-benzoquinone/hydroquinone are widely used to monitor the charge transfer. [2, 3] 1 - 10 mM Fe(CN)63-/4- is the most frequently used as a redox probe pair. Recently, we have discovered that the addition of a small amount of second redox probe to the popular ferricyanide/ferrocyanide results in a significant improvement in charge-transfer.
Electrochemical Impedance Spectroscopy (EIS) is a method wildly used for interface measurement and has high potential in biomolecules detection. The impedances can monitor the charge-transfer between electrode and electro-chemical redox probes. Magnifying of the charge transfer process will lead to high measurement performance. [1] The selection of the redox probe depends on various parameters. Fe(CN)63-/4-, Ru(NH3)63+/2+, p-benzoquinone/hydroquinone are widely used to monitor the charge transfer. [2, 3] 1 - 10 mM Fe(CN)63-/4- is the most frequently used as a redox probe pair. Recently, we have discovered that the addition of a small amount of second redox probe to the popular ferricyanide/ferrocyanide results in a significant improvement in charge-transfer.