Controlling the agglomeration of anisotropic Ru nanoparticles by the microwave-polyol process

R. Harpeness; Zhao Peng; Xiansong Liu; Vilas G. Pol; Yuri Koltypin; Aharon Gedanken

doi:10.1016/j.jcis.2005.02.020

Controlling the agglomeration of anisotropic Ru nanoparticles by the microwave-polyol process

R. Harpeness, Zhao Peng, Xiansong Liu, Vilas G. Pol, Yuri Koltypin, Aharon Gedanken

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

63 Scopus citations

Abstract

A rapid polyol process for the synthesis of ruthenium nanoparticles was developed using microwave irradiation. A colloidal solution of monodispersed anisotropic Ru metal nanoparticles (mean particle size 2-6 nm) with different aspect ratios was obtained first. Particles with different degrees of agglomeration have also been synthesized using monodisperse particles as seeds and PVP (poly-N-vinyl-2-pyrrolidone) as the stabilization reagent. The stabilization mechanisms of different protective reagents were studied by UV-vis spectra. The HRTEM images indicated that dendritic particles formed by controlling agglomeration consisted of single-crystal domains with a random crystalline orientation.

Original language	English
Pages (from-to)	678-684
Number of pages	7
Journal	Journal of Colloid and Interface Science
Volume	287
Issue number	2
DOIs	https://doi.org/10.1016/j.jcis.2005.02.020
State	Published - 15 Jul 2005

Keywords

Anisotropic
Microwave irradiation
Nanoparticles
Polyol process
Ruthenium
Stabilization reagent

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10.1016/j.jcis.2005.02.020

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abstract = "A rapid polyol process for the synthesis of ruthenium nanoparticles was developed using microwave irradiation. A colloidal solution of monodispersed anisotropic Ru metal nanoparticles (mean particle size 2-6 nm) with different aspect ratios was obtained first. Particles with different degrees of agglomeration have also been synthesized using monodisperse particles as seeds and PVP (poly-N-vinyl-2-pyrrolidone) as the stabilization reagent. The stabilization mechanisms of different protective reagents were studied by UV-vis spectra. The HRTEM images indicated that dendritic particles formed by controlling agglomeration consisted of single-crystal domains with a random crystalline orientation.",

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AU - Harpeness, R.

AU - Peng, Zhao

AU - Liu, Xiansong

AU - Pol, Vilas G.

AU - Koltypin, Yuri

AU - Gedanken, Aharon

PY - 2005/7/15

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AB - A rapid polyol process for the synthesis of ruthenium nanoparticles was developed using microwave irradiation. A colloidal solution of monodispersed anisotropic Ru metal nanoparticles (mean particle size 2-6 nm) with different aspect ratios was obtained first. Particles with different degrees of agglomeration have also been synthesized using monodisperse particles as seeds and PVP (poly-N-vinyl-2-pyrrolidone) as the stabilization reagent. The stabilization mechanisms of different protective reagents were studied by UV-vis spectra. The HRTEM images indicated that dendritic particles formed by controlling agglomeration consisted of single-crystal domains with a random crystalline orientation.

KW - Anisotropic

KW - Microwave irradiation

KW - Nanoparticles

KW - Polyol process

KW - Ruthenium

KW - Stabilization reagent

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Controlling the agglomeration of anisotropic Ru nanoparticles by the microwave-polyol process

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