Results
Title

Compositional analysis of multi-element magnetic nanoparticles with a combined NMR and TEM approach.

Authors

Gellesch, Markus; Hammerath, Franziska; Süß, Vicky; Haft, Marcel; Hampel, Silke; Wurmehl, Sabine; Büchner, Bernd

Abstract

The increasing interest in nanoscale materials goes hand in hand with the challenge to reliably characterize the chemical compositions and structural features of nanosized objects in order to relate those to their physical properties. Despite efforts, the analysis of the chemical composition of individual multi-element nanoparticles remains challenging-from the technical point of view as well as from the point of view of measurement statistics. Here, we demonstrate that zero-field solid-state nuclear magnetic resonance (NMR) complements local, single particle transmission electron microscopy (TEM) studies with information on a large assembly of chemically complex nanoparticles. The combination of both experimental techniques gives information on the local composition and structure and provides an excellent measurement statistic through the corresponding NMR ensemble measurement. This analytical approach is applicable to many kinds of magnetic materials and therefore may prove very versatile in the future research of particulate magnetic nanomaterials.

Subjects

MAGNETIC nanoparticles; NUCLEAR magnetic resonance spectroscopy; TRANSMISSION electron microscopy; MOLECULAR self-assembly; MAGNETIC materials

Publication

Journal of Nanoparticle Research, 2017, Vol 19, Issue 9, p1

ISSN

1388-0764

Publication type

Academic Journal

DOI

10.1007/s11051-017-3975-7