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Novel Single-Phase and Gram-Scale Synthesis of Thiol-Uncapped Stable Colloidal Gold Nanoparticles

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Here we describe a new chemical route for obtaining nanometer-sized gold(0) particles with a narrow size distribution and a band gap of 1.45 eV. The synthetic method is based on the reduction of AuBr3 with t-BuOLi activated LiH in dioxane. The single-phase process developed allows the production of large quantities of stable thiol-uncapped gold(0) nanoparticles. These clusters were further used for the production of monodisperse Au nanoparticles with controlled surface properties through ligand exchange with 1-dodecanethiol or 1-decylamine.
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Keywords: ACTIVATED LITHIUM HYDRIDE; AU NANOPARTICLES; CHEMICAL PROCESS; CYCLIC VOLTAMMETRY; ELECTRONIC ENERGY; LIGAND EXCHANGE; NANOMATERIALS

Document Type: Research Article

Publication date: 2005-02-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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