The convenient preparation of stable aryl-coated zerovalent iron nanoparticles

Olga Andreevna Guselnikova, Andrey I. Galanov, Anton K. Gutakovskii, Pavel S. Postnikov

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A novel approach for the in situ synthesis of zerovalent aryl-coated iron nanoparticles (NPs) based on diazonium salt chemistry is proposed. Surface-modified zerovalent iron NPs (ZVI NPs) were prepared by simple chemical reduction of iron(III) chloride aqueous solution followed by in situ modification using water soluble arenediazonium tosylate. The resulting NPs, with average iron core diameter of 21 nm, were coated with a 10 nm thick organic layer to provide long-term protection in air for the highly reactive zerovalent iron core up to 180 °C. The surface-modified iron NPs possess a high grafting density of the aryl group on the NPs surface of 1.23 mmol/g. FTIR spectroscopy, XRD, HRTEM, TGA/DTA, and elemental analysis were performed in order to characterize the resulting material.

Original languageEnglish
Pages (from-to)1192-1198
Number of pages7
JournalBeilstein Journal of Nanotechnology
Volume6
Issue number1
DOIs
Publication statusPublished - 2015

    Fingerprint

Keywords

  • Arenediazonium salts
  • Chemical reduction
  • Covalent modification
  • Surface-modified nanoparticles
  • Zerovalent iron nanoparticles

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering
  • Physics and Astronomy(all)

Cite this