1999
DOI: 10.1021/la9812121
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Preparation of Platinum Nanoparticles by Sonochemical Reduction of the Pt(II) Ion

Abstract: Platinum nanoparticles were prepared in an aqueous system using high-intensity ultrasound (200 kHz, 6 W cm-2). The particles formed in the presence of a surfactant (sodium dodecyl sulfate, SDS) were stable, homogeneously spherical, and relatively monodispersed with an average 2.6 nm diameter. The rate of formation of the platinum nanoparticles was 26.7 μM min-1 in the Pt(II)−SDS system. Reducing species generated near and/or in the hot bubbles, which were sonochemically induced in the media, would react with t… Show more

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Cited by 122 publications
(90 citation statements)
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“…Out of these, PVA is used extensively as host matrix as it is water soluble, optically transparent and gives homogeneity to the silver nano dispersion. The existing methods to reduce silver nitrate in PVA matrix are numerous, to name some simple chemical reduction [19] microwave irradiation [20], polyol synthesis [21], sonochemical method [22] and photoreduction method [23,24]. Among these, the photoreduction method is widely adopted as one can easily obtain very stable nanocomposites by this method.…”
Section: Introductionmentioning
confidence: 99%
“…Out of these, PVA is used extensively as host matrix as it is water soluble, optically transparent and gives homogeneity to the silver nano dispersion. The existing methods to reduce silver nitrate in PVA matrix are numerous, to name some simple chemical reduction [19] microwave irradiation [20], polyol synthesis [21], sonochemical method [22] and photoreduction method [23,24]. Among these, the photoreduction method is widely adopted as one can easily obtain very stable nanocomposites by this method.…”
Section: Introductionmentioning
confidence: 99%
“…[5] Physical methods for preparation, such as the electrochemical route developed by Reetz, [6] are also numerous. [7,8] Currently, several diverse protocols for preparing nanoparticles are being pursued such as impregnation, [9] co-precipitation, [9,10] deposition/pre-cipitation, [11] sol-gel, [9,12] gas-phase organometallic deposition, [13] sonochemical, [14] micro-emulsion, [15] laser ablation, [16] electrochemical, [17] and cross-linking modalities. [18] Polymers provide stabilization for Pd(0) nanoparticles through the framework or by binding weakly to the nanoparticle surface through a heteroatom that plays the role of a ligand.…”
Section: Introductionmentioning
confidence: 99%
“…The intrinsic properties of a metal nanoparticle are mainly determined by size, shape, composition, crystallinity, and morphology [5]. A number of methods have been developed to prepare noble metal colloids, such as chemical reduction with or without stabilizing agents [6], photochemical reduction [7], microwave [8], sonochemical [9], and radiochemical methods [10]. To realize the potentialities of noble metal nanoparticles in technological and biological applications, they should entrapped/embedded in polymer matrix and made into thin films or scaffolds.…”
Section: Introductionmentioning
confidence: 99%