SYNTHESIS AND CHARACTERIZATIONS OF Ag, Cu AND AgCu METALLIC NANOPARTICLES STABILIZED BY DIVALENT SULFUR LIGANDS

The synthesis of Ag, Cu and Ag-Cu nanoparticles with divalent disulfur ligand by the Brust method were obtained. The metals were reduced by sodium borohydride and stabilized with 2,2'-dithioethanol (Ll), N,N'-dithiophtalimide (L2) and triphenylmethanesulfenamide (L3). The nanoparticles wer...

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Autores principales:	LEÓN,YASNA, BRITO,IVÁN, CÁRDENAS,GALO, GODOY,OLIVIA
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2009
Materias:	Nanoparticles Sulfenamides Symmetric disulfide TEM divalent sulfur
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000100012
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spelling	oai:scielo:S0717-970720090001000122009-05-12SYNTHESIS AND CHARACTERIZATIONS OF Ag, Cu AND AgCu METALLIC NANOPARTICLES STABILIZED BY DIVALENT SULFUR LIGANDSLEÓN,YASNABRITO,IVÁNCÁRDENAS,GALOGODOY,OLIVIA Nanoparticles Sulfenamides Symmetric disulfide TEM divalent sulfur The synthesis of Ag, Cu and Ag-Cu nanoparticles with divalent disulfur ligand by the Brust method were obtained. The metals were reduced by sodium borohydride and stabilized with 2,2'-dithioethanol (Ll), N,N'-dithiophtalimide (L2) and triphenylmethanesulfenamide (L3). The nanoparticles were characterized by TEM, EDX, electron diffraction and FTIR. The stability of the colloids at room temperature was also measured. We can observe a high stability for the colloids dispersion with L3 ligand (>1 week by AgCu-L3, Ag-L3 and Cu-L3). We found TEM studies show a size distribution between 9.7 and 15.8 nm, depending on the ligand. Electron diffraction analysis for the metallic nanoparticles shows the presence of Ag2S, Ag, CuO and bimetallic compounds such as CuAgS. The active solids were obtained by solvent evaporation from the nanoparticles dispersed to 50 °C. The FT-IR exhibit the presence of the ligand incorporated in the solid.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.54 n.1 20092009-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000100012en10.4067/S0717-97072009000100012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Nanoparticles Sulfenamides Symmetric disulfide TEM divalent sulfur
spellingShingle	Nanoparticles Sulfenamides Symmetric disulfide TEM divalent sulfur LEÓN,YASNA BRITO,IVÁN CÁRDENAS,GALO GODOY,OLIVIA SYNTHESIS AND CHARACTERIZATIONS OF Ag, Cu AND AgCu METALLIC NANOPARTICLES STABILIZED BY DIVALENT SULFUR LIGANDS
description	The synthesis of Ag, Cu and Ag-Cu nanoparticles with divalent disulfur ligand by the Brust method were obtained. The metals were reduced by sodium borohydride and stabilized with 2,2'-dithioethanol (Ll), N,N'-dithiophtalimide (L2) and triphenylmethanesulfenamide (L3). The nanoparticles were characterized by TEM, EDX, electron diffraction and FTIR. The stability of the colloids at room temperature was also measured. We can observe a high stability for the colloids dispersion with L3 ligand (>1 week by AgCu-L3, Ag-L3 and Cu-L3). We found TEM studies show a size distribution between 9.7 and 15.8 nm, depending on the ligand. Electron diffraction analysis for the metallic nanoparticles shows the presence of Ag2S, Ag, CuO and bimetallic compounds such as CuAgS. The active solids were obtained by solvent evaporation from the nanoparticles dispersed to 50 °C. The FT-IR exhibit the presence of the ligand incorporated in the solid.
author	LEÓN,YASNA BRITO,IVÁN CÁRDENAS,GALO GODOY,OLIVIA
author_facet	LEÓN,YASNA BRITO,IVÁN CÁRDENAS,GALO GODOY,OLIVIA
author_sort	LEÓN,YASNA
title	SYNTHESIS AND CHARACTERIZATIONS OF Ag, Cu AND AgCu METALLIC NANOPARTICLES STABILIZED BY DIVALENT SULFUR LIGANDS
title_short	SYNTHESIS AND CHARACTERIZATIONS OF Ag, Cu AND AgCu METALLIC NANOPARTICLES STABILIZED BY DIVALENT SULFUR LIGANDS
title_full	SYNTHESIS AND CHARACTERIZATIONS OF Ag, Cu AND AgCu METALLIC NANOPARTICLES STABILIZED BY DIVALENT SULFUR LIGANDS
title_fullStr	SYNTHESIS AND CHARACTERIZATIONS OF Ag, Cu AND AgCu METALLIC NANOPARTICLES STABILIZED BY DIVALENT SULFUR LIGANDS
title_full_unstemmed	SYNTHESIS AND CHARACTERIZATIONS OF Ag, Cu AND AgCu METALLIC NANOPARTICLES STABILIZED BY DIVALENT SULFUR LIGANDS
title_sort	synthesis and characterizations of ag, cu and agcu metallic nanoparticles stabilized by divalent sulfur ligands
publisher	Sociedad Chilena de Química
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000100012
work_keys_str_mv	AT leonyasna synthesisandcharacterizationsofagcuandagcumetallicnanoparticlesstabilizedbydivalentsulfurligands AT britoivan synthesisandcharacterizationsofagcuandagcumetallicnanoparticlesstabilizedbydivalentsulfurligands AT cardenasgalo synthesisandcharacterizationsofagcuandagcumetallicnanoparticlesstabilizedbydivalentsulfurligands AT godoyolivia synthesisandcharacterizationsofagcuandagcumetallicnanoparticlesstabilizedbydivalentsulfurligands
_version_	1718445399284383744

SYNTHESIS AND CHARACTERIZATIONS OF Ag, Cu AND AgCu METALLIC NANOPARTICLES STABILIZED BY DIVALENT SULFUR LIGANDS

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