Electrochemical Properties of Redox-active Tetrathiafulvalene and Fullerene C<SUB>60</SUB>-functionalized Gold Nanoparticles, and Their Nanocomposite Films-modified Electrodes
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概要
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Redox-active gold nanoparticles containing tetrathiafulvalene as an electron donor (TTF-Au nanoparticles) and fullerene C<SUB>60</SUB> as an electron acceptor (C<SUB>60</SUB>-Au nanoparticles) have been prepared by the reaction of octanethiol-stabilized gold nanoparticles with a tetrathiafulvalenyl-monothiol and a fullerene C<SUB>60</SUB>-terminated alkanethiol. Immersion of a gold electrode in a solution of the colloidal TTF-Au nanoparticles deposited the colloid films of them on the electrode surface, which were remarkably stable under repeated electrochemical cycling. Analogously, the self-assembly of C<SUB>60</SUB>-Au on planar gold surface led to the formation of the nanoparticle films which showed two distinct reversible reduction/oxidation waves and significant electrochemical stability. The electrochemical responses for the C<SUB>60</SUB>-Au nanoparticle films and self-assembled monolayers of the C<SUB>60</SUB>-thiol adsorbed on gold electrodes are significantly different. The nanocomposite films containing electron-donor and -acceptor functions such as TTF-Au and C<SUB>60</SUB>-Au can be characterized by cyclic voltammetry.
- Japan Society of Colour Materialの論文