Title

Radiation-Assisted Synthesis of Iridium and Rhodium Nanoparticles Supported on Polyvinylpyrrolidone

Abstract

The controlled synthesis of rhodium (Rh) and iridium (Ir) nanoparticles was carried out by gamma irradiation of aqueous solutions containing the metal precursor salt and polyvinylpyrrolidone (PVP). The nanoparticles were synthesized at various PVP and precursor concentrations with absorbed doses between 20 and 60 kGy. Nanoparticles with average sizes of 2.4 and 2.6 nm and narrow particle size distributions were obtained at metal precursor/PVP concentrations of 6/0.3 and 6/3 mM for Ir and Rh when irradiated at 60 kGy. The interaction of the nanoparticles surfaces with the PVP was studied.

Department(s)

Mining and Nuclear Engineering

Comments

This work was supported by NRC radiochemistry Grant PPR-NRC-38-10-966.

Keywords and Phrases

Gamma irradiation; Iridium nanoparticles; Radiation induced chemistry; Radiolysis synthesis; Rhodium nanoparticles

International Standard Serial Number (ISSN)

0236-5731; 1588-2780

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2014 Kluwer Academic Publishers, All rights reserved.

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