2014
DOI: 10.5194/jsss-3-245-2014
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Abstract: Abstract. In the present study, Au-surfactant core-shell colloidal nanoparticles (NPs) with controlled dimension and composition were synthesized by sacrificial anode electrolysis. Transmission electron microscopy (TEM) revealed that Au NPs core diameter is between 8 and 12 nm, as a function of the electrosynthesis conditions. Moreover, surface spectroscopic characterization by X-ray photoelectron spectroscopy (XPS) analysis confirmed the presence of nanosized gold phase. Controlled amounts of Au NPs were then… Show more

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Cited by 6 publications
(2 citation statements)
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“…These results clearly demonstrate a p-type semiconducting behavior of the MWCNTs networked films, maintained also A c c e p t e d M a n u s c r i p t after the functionalization with Au nanoclusters [39]. This p-type dominant character in the Aumodified MWCNT sensors is also confirmed in a previous work of the authors [57].…”
Section: Gas Sensing Propertiessupporting
confidence: 84%
“…These results clearly demonstrate a p-type semiconducting behavior of the MWCNTs networked films, maintained also A c c e p t e d M a n u s c r i p t after the functionalization with Au nanoclusters [39]. This p-type dominant character in the Aumodified MWCNT sensors is also confirmed in a previous work of the authors [57].…”
Section: Gas Sensing Propertiessupporting
confidence: 84%
“…44 Decoration of metal catalysts such as Au has introduced new peak in XPS because of Au-4f7/2 at 83.7±0.2 eV. 45 We have recently demonstrated the formation of Au(NP)-MWCNT nanohybrids, 46 which confirmed that both acid treatment and functionalization of Au(NPs) introduced stresses on the surface of MWCNTs as studied by the X-ray diffraction and Raman spectroscopy ( Figures 6-8). 46 Linear decrease in D/G ratio in Raman spectra from 1.27 for oxidized MWCNTs to 1.03 for 80 nM Au(NPs) concentrations and then again an increase to 1.21 for 100 nM Au(NPs) on the surface of MWCNTs was the significant signature of Au(NPs) functionalization.…”
Section: Resultsmentioning
confidence: 71%