Instantaneous Synthesis of Stable Zerovalent Metal Nanoparticles under Standard Reaction Conditions


Por: Valle-Orta M., Diaz D., Santiago-Jacinto P., Vázquez-Olmos A., Reguera E.

Publicada: 20 nov 2008
Resumen:
In this report is discussed a novel, easy. and general synthesis method to prepare zerovalent iron (ZVI) and copper (ZV Cu) nanoparticles (NPs), from colloid dispersions in an environmental friendly organic solvent, ethylene glycol (EG). Conventional metallic salts are used as nanoparticle precursors: sodium borohydride (NaBH4) is the reducing agent. and triethylamine (TEA) is used as the nanoparticle stabilizer. The chemical changes take place instantaneously under normal reaction conditions. Small iron ((alpha-Fe-0 phase) and copper (fcc phase) NPs with average diameters of 10.2 +/- 3.3 and 9.5 +/- 2.5 nm, respectively, were obtained. In both cases. the experimental evidence reveals the absence of any metal oxide shell coating, the particle surfaces, and their powders remain stable, under aerobic conditions at least for 3 weeks. ZVI NPs were characterized by X-RD, Mossbauer, and Raman spectroscopies and by EELS Coupled to HR-TEM. Otherwise. copper NPs were characterized by X-RD, Z-co

Filiaciones:
Valle-Orta M.:
 Univ Nacl Autonoma Mexico, Fac Quim, Mexico City 04510, DF, Mexico

Diaz D.:
 Univ Nacl Autonoma Mexico, Fac Quim, Mexico City 04510, DF, Mexico

Santiago-Jacinto P.:
 Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico

Vázquez-Olmos A.:
 Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico

Reguera E.:
 CICATA U-Legaria, Instituto Politécnico Nacional, Legaria 694, Colonia Irrigacion, Miguel Hidalgo, CP 11500, Mexico D. F., Mexico
ISSN: 15206106
Editorial
AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA, Estados Unidos America
Tipo de documento: Review
Volumen: 112 Número: 46
Páginas: 1442-1443
WOS Id: 000260923400012
ID de PubMed: 18855464