Observation of Electrochemical Single-Electron-Transfer Events of Gold Nanoparticles in Aqueous Solution in the Presence of Both Ammonium and Sulfonate Surface-Active Agents
The synergistic effect of the two surfactants hexyltrimethylammonium bromide and sodium dodecylbenzenesulfonate allows the redox peaks of Au nanoparticles (AuNPs) to be observed in the differential pulse voltammogram of an AuNP‐modified Au electrode in aqueous solution (b), whereas in the presence o...
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Veröffentlicht in: | Angewandte Chemie (International ed.) 2008-08, Vol.47 (35), p.6699-6702 |
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creator | Nakai, Misaki Yamanoi, Yoshinori Nishimori, Yoshihiko Yonezawa, Tetsu Nishihara, Hiroshi |
description | The synergistic effect of the two surfactants hexyltrimethylammonium bromide and sodium dodecylbenzenesulfonate allows the redox peaks of Au nanoparticles (AuNPs) to be observed in the differential pulse voltammogram of an AuNP‐modified Au electrode in aqueous solution (b), whereas in the presence of Et4NClO4 alone no significant peaks ascribable to AuNP redox processes appear due to the high dielectric constant of water (a). |
doi_str_mv | 10.1002/anie.200801704 |
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subjects | Benzenesulfonates - chemistry Electrochemistry Electrodes electron transfer Electron Transport gold Gold - chemistry Metal Nanoparticles - chemistry Microscopy, Electron, Transmission nanoparticles Quantum Dots Quaternary Ammonium Compounds - chemistry Solutions Surface-Active Agents - chemistry surfactants voltammetry Water - chemistry |
title | Observation of Electrochemical Single-Electron-Transfer Events of Gold Nanoparticles in Aqueous Solution in the Presence of Both Ammonium and Sulfonate Surface-Active Agents |
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