TY - JOUR
T1 - Preparation of highly concentrated and stable suspensions of silver nanoparticles by an organic base catalyzed reduction reaction
AU - Wu, Rong Tarng
AU - Hsu, Steve Lien Chung
N1 - Funding Information:
The financial support provided by the National Science Council through project NSC-94-2120-M-006-007 is greatly appreciated. The authors also thank the Center for Micro/Nano Technology Research, National Cheng Kung University, Tainan, Taiwan, for equipment access and technical support. The authors are indebted to Prof. Chi Wang (National Cheng-Kung University) for his help in obtaining particle size distribution of silver nanoparticles.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008/5/6
Y1 - 2008/5/6
N2 - Highly concentrated and stable suspensions of silver nanoparticles have been synthesized by chemical reduction from silver nitrate in a formaldehyde reductant using an organic base, triethylamine, as the reaction promoter. In this reaction, a low molecular weight organic compound, thiosalicylic acid (TSA), was used as the protecting agent. The average size of the silver nanoparticles prepared from this method was less than 10 nm, which allowed low-temperature sintering of the metal. The suspensions were further stabilized by the addition of excessive triethylamine, which forms an amine salt with TSA. A 50 wt%, stable suspension has been prepared. The suspensions of silver nanoparticles prepared by this method are free from any metal ion contamination, and are suitable for use in semiconductor industries.
AB - Highly concentrated and stable suspensions of silver nanoparticles have been synthesized by chemical reduction from silver nitrate in a formaldehyde reductant using an organic base, triethylamine, as the reaction promoter. In this reaction, a low molecular weight organic compound, thiosalicylic acid (TSA), was used as the protecting agent. The average size of the silver nanoparticles prepared from this method was less than 10 nm, which allowed low-temperature sintering of the metal. The suspensions were further stabilized by the addition of excessive triethylamine, which forms an amine salt with TSA. A 50 wt%, stable suspension has been prepared. The suspensions of silver nanoparticles prepared by this method are free from any metal ion contamination, and are suitable for use in semiconductor industries.
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U2 - 10.1016/j.materresbull.2007.05.020
DO - 10.1016/j.materresbull.2007.05.020
M3 - Article
AN - SCOPUS:40749086773
VL - 43
SP - 1276
EP - 1281
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
IS - 5
ER -