Thermal stability and electrochemical properties of PVP-protected Ru nanoparticles synthesized at room temperature

Kumar, Manish and Devi, Pooja and Shivling, V.D. (2017) Thermal stability and electrochemical properties of PVP-protected Ru nanoparticles synthesized at room temperature. Materials Research Express, 4 (8). ISSN 2053-1591

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Official URL: https://iopscience.iop.org/article/10.1088/2053-15...

Abstract

Stable ruthenium nanoparticles (RuNPs) have been synthesized by the chemical reduction of ruthenium trichloride trihydrate (RuCl3 centerdot 3H2O) using sodium borohydride (NaBH4) as a reductant and polyvinylpyrrolidone (PVP) as a protecting agent in the aqueous medium at room temperature. The nanoparticles thus prepared were characterized by their morphology and structural analysis from transmission electron microscopy (TEM), X-ray powder diffraction (XRD), UV–vis spectroscopy, Fourier transformation infrared and thermogravimetric analysis (TGA) techniques. The TEM image suggested a homogeneous distribution of PVP-protected RuNPs having a small average diameter of 2–4 nm with a chain-like network structure. The XRD pattern also confirmed that a crystallite size is around 2 nm of PVP-protected RuNPs having a single broad peak. The thermal stability studied using TGA, indicated good stability and the electrochemical properties of these nanoparticles revealed that saturation current increases for PVP-protected RuNPs/GC.

Item Type: Article
Uncontrolled Keywords: Ru nanoparticles, chemical synthesis, thermogravimetric analysis, PVP, electrochemical properties
Subjects: CSIO > Agri - Instrumentation
Divisions: Agri - Instrumentation
Depositing User: Ms T Kaur
Date Deposited: 28 Feb 2019 15:52
Last Modified: 28 Feb 2019 15:52
URI: http://csioir.csio.res.in/id/eprint/492

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