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Metalized Alkanedithiol Self-Assembled Monolayers (SAM) on Au Surfaces by an In Situ Autocatalytic Mechanism

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Here, a simple and general approach was developed for depositing metal nanoparticles on alkanedithiol self-assembled monolayers (SAMs) based on the spontaneous reduction of metal ions by the free SH sites of SAMs. By immersing the alkanedithiol SAM/Au in a corresponding metalcontaining solution (HAuCl4, AgNO3, H2PtCl6 and PdSO4), Au, Ag, Pt and Pd clusters, respectively, could be formed on top of the SAM/Au(111) electrode surface, which was confirmed by STM characterization. The size, morphology and coverage of clusters/islands can be tuned by modulating the immersion time, which allows for possible utilization of the metal/SAM/Au(111) in catalysis, nanoelectronics and biodetection.
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Keywords: In Situ Autocatalyst; Metallization; Nanoclusters; SAMs

Document Type: Research Article

Affiliations: 1: Sino-Precious Metals Holding Co., Ltd., Kunming 650106, P. R. China 2: School of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China 3: State-Local Joint Engineering Laboratory of Precious Metal Catalytic Technology and Application, Kunming Sino-Platinum Metals Catalysts Co., Ltd., Kunming 650106, P. R. China

Publication date: April 1, 2020

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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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