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Journal of Undergraduate Chemistry Research, 2004, 4, 145 ELECTROCHEMISTRY OF FERROCENE-MODIFIED
 

Summary: Journal of Undergraduate Chemistry Research, 2004, 4, 145
ELECTROCHEMISTRY OF FERROCENE-MODIFIED
MONOLAYER-PROTECTED GOLD NANOCLUSTERS AT
REDUCED TEMPERATURES
K. Grace Kennedy* and Deon T. Miles
Department of Chemistry, University of the South, 735 University Avenue, Sewanee, TN 37383-1000,
dmiles@sewanee.edu
Abstract
The electrochemistry of ferrocene-modified monolayer-protected gold nanocluster (Fc-MPC) solutions at reduced
temperatures was studied. Fc-MPC diffusion coefficients are estimated from macroelectrode cyclic voltammetry
(CV) and shown to decrease as the solution temperature is lowered. Diffusion coefficients were also determined for
the ferrocenecarboxylic acid monomer (Fc-COOH) at reduced temperatures with similar effects. The potential peak
spacing (Ep
) for both species increases as the solution temperature is lowered. This effect is largely attributed to
the increased solution resistance rather than the increased solvent viscosity at lower temperatures.
Keywords: Diffusion coefficient, Electrochemistry, Ferrocene, Gold nanoparticles, Low temperature, Monolayer-
protected clusters, Viscosity
Introduction
Gold nanoparticles have received a great deal of
attention recently because of their dimensions and

  

Source: Akhmedov, Azer - Department of Mathematics, University of California at Santa Barbara

 

Collections: Mathematics