Phase-Transfer Technique for Polymer-Protected Noble Metal Nanoparticles

Authors

Xing-li FENG, 1),HUANG Ming-hu~(2),ZHANG Xiao-kai~(3), HUANG Shao-xin~(1),PAN Wei~(1),MA Hou-yi~(*1)(1.School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,Shandong,China,2.School of the Ocean,Harbin Institute of Technology at Weihai,Weihai 264209,Shandong,China;3.Analysis and Testing Center,Shandong Normal University,Jinan 250014,Shandong,China;

Abstract

A novel phase-transfer method was developed based on the decrease of PVP's solubility in water with increasing temperature,by means of which PVP-protected gold,silver and platinum nanoparticles can be conveniently transferred from aqueous phase to 1-butanol phase.Monodispersed metal nanoparticles were electrochemically synthesized at first in the aqueous,and then 1-butanol of appropriate volume was added to the aqueous phase.Heating the oil-water mixture to 80 ℃ under vigorous stirring would make metal nanoparticles leave the aqueous phase and enter into the 1-butanol phase,with high phasetransfer efficiency and without aggregation between nanoparticles.An electrochemical method to synthesize metal nanoparticles in the oil-water mixtures was further established,which provides a new path for collection of nanoparticles and preparation of metal nanofilms.

Keywords

Nanoparticles, Phase-transfer, Poly(N-vinylpyrrolidone)(PVP), Electrochemical synthesis, Oil/water interface

DOI Link

https://doi.org/10.61558/2993-074X.1761

Publication Date

2006-11-28

Online Available Date

2006-11-28

Revised Date

2006-11-28

Received Date

2006-11-28

Recommended Citation

Xing-li FENG. Phase-Transfer Technique for Polymer-Protected Noble Metal Nanoparticles[J]. Journal of Electrochemistry, 2006 , 12(4): 403-407.
DOI: 10.61558/2993-074X.1761
Available at: https://jelectrochem.xmu.edu.cn/journal/vol12/iss4/10