Fabrication of Highly Stable Platinum Nanoparticle via Microemulsions
Publish place: 06th International Congress on Chemical Engineering
Publish Year: 1388
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICHEC06_457
تاریخ نمایه سازی: 1 مهر 1388
Abstract:
The present paper will introduce the synthesis of platinum nanoparticles by the reduction of H2PtCl6 with NaBH4 in sodium bis(2-ethylhexyl) sulphosuccinate (AOT)/nheptane/ water/metal salt or reducing agent reversed micellar solutions. The effect of metal precursor concentration in aqueous phase ([H2PtCl6] = 0.4, 0.8 and 1.2 wt% as metallic Pt), water to AOT molar ratio (ω◦ = 4, 8 and 12) and reducing agent to metal saltmolar ratio ([NaBH4]/[H2PtCl6] = 5, 7.5 and 10) on the reaction were investigated. The reaction progress was monitored by time resolved UV–Vis absorption spectroscopy. The dispersions of the platinum nanoparticles obtained with 0.4 and 0.8 wt% of metallic Pt in aqueous phase were very stable and no precipitated particles were observed in three months time scale.
Keywords:
platinum Nanoparticles , sodium bis(2-ethylhexyl) sulphosuccinate AOT , stable platinum dispersions , reversed micelles , microemulsions
Authors
M . G Hosseini
Electrochemical Research Laboratory, Faculty of Chemistry, University of Tabriz, Tabriz
R Najjar
Polymer Research Laboratory, Faculty of Chemistry, University of Tabriz, Tabriz, c)
M Shokri
Department of Applied Chemistry, Islamic Azad University, Tabriz Branch, P.O.Box ۱۶۵۵, Tabriz, Iran
S Sheikhy
Department of Applied Chemistry, Islamic Azad University, Tabriz Branch, P.O.Box ۱۶۵۵, Tabriz, Iran
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