Chaki, Nirmalya Kumar ; Kakade, Bhalchandra ; Vijayamohanan, Kunjukrishna P. (2004) Quantized double layer charging of dodecanethiol protected larger Au nanoclusters: combined investigations using differential pulse voltammetry, cyclic voltammetry and impedance technique Electrochemistry Communications, 6 (7). pp. 661-665. ISSN 1388-2481
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.elecom.2004.05.003
Abstract
The electrochemical quantized double layer charging of 4.63 ± 0.04 nm sized Au nanoclusters protected with dodecanethiol [ca. Au2869(DDT)541] has been investigated using differential pulse voltammetry, cyclic voltammetry and impedance measurements. Our results show for the first time that these particles are clearly accessible for single electron charging despite their higher capacitance (1.95 aF). Analysis of the impedance spectra using the Randles equivalent circuit reveals that the process is very sluggish, where the electron transfer rate constant is found to be of 8.27 × 10−cm s−1.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | QDL Charging; Au2869(DDT)541; Differential Pulse Voltammetry; Cyclic Voltammetry; Impedance Analysis |
| ID Code: | 53276 |
| Deposited On: | 05 Aug 2011 11:17 |
| Last Modified: | 05 Aug 2011 11:17 |
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