3D-ITIES supported on porous reticulated vitreous carbon

作者：Tan Shuxin; Hojeij Mohamad; Su Bin; Meriguet Guillaume; Eugster Nicolas; Girault Hubert H^*

来源：Journal of Electroanalytical Chemistry, 2007, 604(2): 65-71.

DOI：10.1016/j.jelechem.2006.11.011

• reticulated nitreous carbon
• polypeptide multilayers
• dye-sensitisation
• photocurrent
• ITIES

A thin aqueous film prepared by layer-by-layer assembly of oppositely charged polypeptides on 4-aminobenzoic acid modified porous reticulated vitreous carbon (RVC) electrodes was used with the aim of forming a 3D-ITIES. The film containing a redox mediator, namely ferri/ferrocyanide, was placed in contact with an organic solution 1,2-dichloroethane containing an electron acceptor, 7,7';,8,8';-tetracyanoquinodimethane (TCNQ). The reduction of TCNQ was studied to characterise the electrochemical properties of the supported ITIES. When the film is dye-sensitised, a reduction photocurrent was observed upon illumination. This photocurrent was an order of magnitude larger than that measured on a planar electrode.

• 出版日期2007-6-15