Cargando…

Synthesis and Characterization of Monodispersed Copper Colloids in Polar Solvents

A chemical reduction method for preparing monodispersed pure-phase copper colloids in water and ethylene glycol has been reported. Owing to the reduction property of ethylene glycol, the reaction rate in ethylene glycol is higher than that in water. In addition, the amount of reducing agent can be r...

Descripción completa

Detalles Bibliográficos
Autores principales: Yu, Wei, Xie, Huaqing, Chen, Lifei, Li, Yang, Zhang, Chen
Formato: Texto
Lenguaje:English
Publicado: Springer 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2898482/
https://www.ncbi.nlm.nih.gov/pubmed/20628634
http://dx.doi.org/10.1007/s11671-009-9264-3
_version_ 1782183487608979456
author Yu, Wei
Xie, Huaqing
Chen, Lifei
Li, Yang
Zhang, Chen
author_facet Yu, Wei
Xie, Huaqing
Chen, Lifei
Li, Yang
Zhang, Chen
author_sort Yu, Wei
collection PubMed
description A chemical reduction method for preparing monodispersed pure-phase copper colloids in water and ethylene glycol has been reported. Owing to the reduction property of ethylene glycol, the reaction rate in ethylene glycol is higher than that in water. In addition, the amount of reducing agent can be reduced largely. Ascorbic acid plays roles as reducing agent and antioxidant of colloidal copper, due to its ability to scavenge free radicals and reactive oxygen molecules. Thermogravimetric results reveal that the as-prepared copper nanoparticles have good stability, and they begin to be oxidized at above 210 °C. Polyvinyl pyrrolidone works both as size controller and polymeric capping agents, because it hinders the nuclei from aggregation through the polar groups, which strongly absorb the copper particles on the surface with coordination bonds.
format Text
id pubmed-2898482
institution National Center for Biotechnology Information
language English
publishDate 2009
publisher Springer
record_format MEDLINE/PubMed
spelling pubmed-28984822010-07-12 Synthesis and Characterization of Monodispersed Copper Colloids in Polar Solvents Yu, Wei Xie, Huaqing Chen, Lifei Li, Yang Zhang, Chen Nanoscale Res Lett Nano Express A chemical reduction method for preparing monodispersed pure-phase copper colloids in water and ethylene glycol has been reported. Owing to the reduction property of ethylene glycol, the reaction rate in ethylene glycol is higher than that in water. In addition, the amount of reducing agent can be reduced largely. Ascorbic acid plays roles as reducing agent and antioxidant of colloidal copper, due to its ability to scavenge free radicals and reactive oxygen molecules. Thermogravimetric results reveal that the as-prepared copper nanoparticles have good stability, and they begin to be oxidized at above 210 °C. Polyvinyl pyrrolidone works both as size controller and polymeric capping agents, because it hinders the nuclei from aggregation through the polar groups, which strongly absorb the copper particles on the surface with coordination bonds. Springer 2009-02-19 /pmc/articles/PMC2898482/ /pubmed/20628634 http://dx.doi.org/10.1007/s11671-009-9264-3 Text en Copyright ©2009 to the authors
spellingShingle Nano Express
Yu, Wei
Xie, Huaqing
Chen, Lifei
Li, Yang
Zhang, Chen
Synthesis and Characterization of Monodispersed Copper Colloids in Polar Solvents
title Synthesis and Characterization of Monodispersed Copper Colloids in Polar Solvents
title_full Synthesis and Characterization of Monodispersed Copper Colloids in Polar Solvents
title_fullStr Synthesis and Characterization of Monodispersed Copper Colloids in Polar Solvents
title_full_unstemmed Synthesis and Characterization of Monodispersed Copper Colloids in Polar Solvents
title_short Synthesis and Characterization of Monodispersed Copper Colloids in Polar Solvents
title_sort synthesis and characterization of monodispersed copper colloids in polar solvents
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2898482/
https://www.ncbi.nlm.nih.gov/pubmed/20628634
http://dx.doi.org/10.1007/s11671-009-9264-3
work_keys_str_mv AT yuwei synthesisandcharacterizationofmonodispersedcoppercolloidsinpolarsolvents
AT xiehuaqing synthesisandcharacterizationofmonodispersedcoppercolloidsinpolarsolvents
AT chenlifei synthesisandcharacterizationofmonodispersedcoppercolloidsinpolarsolvents
AT liyang synthesisandcharacterizationofmonodispersedcoppercolloidsinpolarsolvents
AT zhangchen synthesisandcharacterizationofmonodispersedcoppercolloidsinpolarsolvents