2005
DOI: 10.1021/jp053429r
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Dodecanethiol-Protected Copper/Silver Bimetallic Nanoclusters and Their Surface Properties

Abstract: Dodecanethiol-protected copper/silver bimetallic nanoclusters were prepared by a liquid-phase method using different copper to silver feed ratios. The morphology and size of the prepared nanoclusters were analyzed with X-ray diffraction (XRD) and transmission electron microscopy (TEM), while their spectroscopic and surface properties were characterized by infrared (IR) and X-ray photoelectron spectroscopy (XPS), thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), and 13C cross-polariza… Show more

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Cited by 51 publications
(52 citation statements)
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“…These peaks, centered at ca. 120 °C, have been attributed to the collapse of -(CH 2 ) n -groups that form the organic capping layer [22][23][24][25]. The end of the interdigitation between thiols chains of neighboring nanoparticles takes place when the collapse occurs.…”
Section: Structural and Morphological Characterizationsmentioning
confidence: 99%
See 1 more Smart Citation
“…These peaks, centered at ca. 120 °C, have been attributed to the collapse of -(CH 2 ) n -groups that form the organic capping layer [22][23][24][25]. The end of the interdigitation between thiols chains of neighboring nanoparticles takes place when the collapse occurs.…”
Section: Structural and Morphological Characterizationsmentioning
confidence: 99%
“…In this paper, an extensive study, concerning the interaction among in-situ synthesized thiol-capped silver nanoparticles embedded in a polymeric matrix obtained by thermal decomposition of the silver(I)-thiolates different types (AgS(CH 2 ) n X, where n is the number of carbon atoms that form the chain length and X symbolizes the terminal group of the chain), is reported [21][22][23]. The influence of thiol structure on the interaction between adjacent nanoparticles was studied and characterization of samples obtained from different precursors by X-Ray diffraction (XRD) transmission electron microscopy (TEM), differential scanning calorimetric (DSC) and UV-Vis optical spectroscopy was reported.…”
Section: Introductionmentioning
confidence: 99%
“…In principle, this can be achieved by varying the synthetic protocol. [9][10][11][12] The core-shell nanoparticles can be effectively formed using separate reduction reactions in two stages with different reaction temperatures through the heterogeneous nucleation process. For example, Cu-Ni core-shell nanoparticles have been prepared using this technique.…”
Section: Introductionmentioning
confidence: 99%
“…However, Co-B particle agglomeration could be effectively avoided owing to the smooth reaction between Co(HSC 12 H 25 ) n 2+ and BH 4 À , resulting in uniform Co-B nanoparticles [10]. Meanwhile, the Co-B amorphous alloy nanoparticles were covered by dodecanethiol molecules via strong chemisorption of the thiol group as demonstrated by the aforementioned XPS analysis, which could stabilize the nanoparticles against aggregating [27,28]. The coverage of each Co-B particle by dodecanethiol molecules was heterogeneous since only the side contacting the dodecanethiol phase could adsorb for dodecanethiol.…”
Section: Resultsmentioning
confidence: 99%