Effects Of Process Parameters On Cu Powder Synthesis Yield And Particle Size In A Wet-Chemical Process
This study presents a simple wet-chemical process to prepare several micron-size Cu powders. Moreover, changes in powder synthesis yield and particle size are examined with different solvents, synthesis temperatures, and amounts of reducing agent during the synthesis. As a reducing agent and capping...
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doaj-d6a2ae5be45e4b548a3cc01be7ae9fe42020-11-25T03:32:42ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092015-06-016021247125010.1515/amm-2015-0107amm-2015-0107Effects Of Process Parameters On Cu Powder Synthesis Yield And Particle Size In A Wet-Chemical ProcessShin Y.M.0Lee J.-H.1 DEPARTMENT OF MATERIALS SCIENCE DEPARTMENT OF MATERIALS SCIENCE This study presents a simple wet-chemical process to prepare several micron-size Cu powders. Moreover, changes in powder synthesis yield and particle size are examined with different solvents, synthesis temperatures, and amounts of reducing agent during the synthesis. As a reducing agent and capping agent, L-ascorbic acid and polyvinyl pyrrolidone were used, respectively. The yields in distilled water or an ethylene glycol (EG)/distilled water mixture were higher than that in EG alone, and the yield increased with increasing temperature owing to a lower Δ Gred value. Increasing the L-ascorbic acid concentration also increased the yield. The Cu powder synthesized in 3 h at 90°C in distilled water with 272.8 mM of L-ascorbic acid showed the lowest average particle size of 2.52 μm, indicating mechanisms of short burst nucleation and reduced growth via the increased reduction rate of Cu ions. It is estimated that the nucleation step was nearly completed within 10 min in this system. The Cu powders synthesized in an ethylene glycol/distilled water mixture presented an average particle size of 3.76 μm and the highest yield of 87.9%.http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0107/amm-2015-0107.xml?format=INTWet-chemical processMicron-size Cu powderSynthesis yieldParticle sizeGibbs free energy difference |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shin Y.M. Lee J.-H. |
spellingShingle |
Shin Y.M. Lee J.-H. Effects Of Process Parameters On Cu Powder Synthesis Yield And Particle Size In A Wet-Chemical Process Archives of Metallurgy and Materials Wet-chemical process Micron-size Cu powder Synthesis yield Particle size Gibbs free energy difference |
author_facet |
Shin Y.M. Lee J.-H. |
author_sort |
Shin Y.M. |
title |
Effects Of Process Parameters On Cu Powder Synthesis Yield And Particle Size In A Wet-Chemical Process |
title_short |
Effects Of Process Parameters On Cu Powder Synthesis Yield And Particle Size In A Wet-Chemical Process |
title_full |
Effects Of Process Parameters On Cu Powder Synthesis Yield And Particle Size In A Wet-Chemical Process |
title_fullStr |
Effects Of Process Parameters On Cu Powder Synthesis Yield And Particle Size In A Wet-Chemical Process |
title_full_unstemmed |
Effects Of Process Parameters On Cu Powder Synthesis Yield And Particle Size In A Wet-Chemical Process |
title_sort |
effects of process parameters on cu powder synthesis yield and particle size in a wet-chemical process |
publisher |
Polish Academy of Sciences |
series |
Archives of Metallurgy and Materials |
issn |
2300-1909 |
publishDate |
2015-06-01 |
description |
This study presents a simple wet-chemical process to prepare several micron-size Cu powders. Moreover, changes in powder synthesis yield and particle size are examined with different solvents, synthesis temperatures, and amounts of reducing agent during the synthesis. As a reducing agent and capping agent, L-ascorbic acid and polyvinyl pyrrolidone were used, respectively. The yields in distilled water or an ethylene glycol (EG)/distilled water mixture were higher than that in EG alone, and the yield increased with increasing temperature owing to a lower Δ Gred value. Increasing the L-ascorbic acid concentration also increased the yield. The Cu powder synthesized in 3 h at 90°C in distilled water with 272.8 mM of L-ascorbic acid showed the lowest average particle size of 2.52 μm, indicating mechanisms of short burst nucleation and reduced growth via the increased reduction rate of Cu ions. It is estimated that the nucleation step was nearly completed within 10 min in this system. The Cu powders synthesized in an ethylene glycol/distilled water mixture presented an average particle size of 3.76 μm and the highest yield of 87.9%. |
topic |
Wet-chemical process Micron-size Cu powder Synthesis yield Particle size Gibbs free energy difference |
url |
http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0107/amm-2015-0107.xml?format=INT |
work_keys_str_mv |
AT shinym effectsofprocessparametersoncupowdersynthesisyieldandparticlesizeinawetchemicalprocess AT leejh effectsofprocessparametersoncupowdersynthesisyieldandparticlesizeinawetchemicalprocess |
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