Phase-Transfer and Stabilization of Highly Monodisperse Ferrite Nanoparticles into Polar Solvents by Ligand Exchange Synthesis

Dominika Zákutná; Dirk Honecker; Sabrina Disch

doi:10.1166/jnn.2019.16786

Phase-Transfer and Stabilization of Highly Monodisperse Ferrite Nanoparticles into Polar Solvents by Ligand Exchange Synthesis

J Nanosci Nanotechnol. 2019 Aug 1;19(8):5048-5051. doi: 10.1166/jnn.2019.16786.

Authors

Dominika Zákutná¹, Dirk Honecker¹, Sabrina Disch²

Affiliations

¹ Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France.
² Department für Chemie, Universität zu Köln, 50939 Köln, Germany.

PMID: 30913820
DOI: 10.1166/jnn.2019.16786

Abstract

Cobalt ferrite nanoparticles with controlled particle size are transferred from nonpolar into polar solvent by exchange of the as-synthesized oleic acid ligand shell with polyacrylic acid (PAA). The nanoparticles are highly monodisperse (σ_log < 6%), and the ligand exchange synthesis has no measurable effect on particle size, shape, or size distribution. The stability of the aqueous particle dispersion without significant interparticle correlations as observed using small-angle X-ray scattering confirms the successful phase-transfer.

Publication types

Research Support, Non-U.S. Gov't