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Preparation of hollow cobalt ferrite nanoparticles

: Ong, Q.K.; Kuebel, C.; Oldenburg, A.L.; Wei, A.

American Chemical Society -ACS-, Washington/D.C.:
233rd American Chemical Society National Meeting 2007. Abstracts of scientific papers. CD-ROM : March 25 - 29, 2007, Chicago, IL
Washington, DC: ACS, 2007
ISBN: 0-8412-7438-X
Paper COLL 256
American Chemical Society (ACS National Meeting) <233, 2007, Chicago/Ill.>
American Chemical Society (ACS Spring Meeting) <2007, Chicago/Ill.>
Fraunhofer IFAM ()

Cobalt-iron core-shell nanoparticles can be transformed into hollow cobalt ferrite nanoparticles by electron beam irradiation or in situ by thermal annealing. The structural and compositional evolution of these nanoparticles were investigated by high-resolution and energy-filtered transmission electron microscopy, complemented by measurements of their magnetic properties using SQUID magnetometry.