Fe 3 O 4 nanowires synthesized by electroprecipitation in templates

Abstract

We present an electrochemical technique for growing Fe3O4 nanostructures. Hydrazine and iron compounds in an aqueous solution undergo chemical reactions with hydroxides and form magnetite at the surface of the working electrode of an electrochemical cell. Growth of magnetite in nanoscale templates is demonstrated. X-ray diffraction, transmission electron microscopy, electrical transport measurements, and magnetometry confirm the nature of the deposit. Giant magnetoresistance was observed when the nanowires were granular.

Magnetotransport properties depending on the nanostructure of Fe3O4nanowires

“…The Fe 3 O 4 synthesis was achieved by means of an electroprecipitation method [10]. Typically, the electrodeposition experiment was carried out in a classical three electrode glass cell.…”

(Fe,Mn)3O4 Nanochannels Fabricated by AFM Local‐Oxidation Nanolithography using Mo/Poly(methyl methacrylate) Nanomasks

“…Previous studies have focused on the fabrication of magnetite nanostructures with techniques that utilize electrodeposition, [7] dip-pen lithography, [8] and oxidation of Fe nanopatterns; [9] however, these processes do not allow the realization of long epitaxial nanowires with a high degree of crystallinity. Single-crystalline magnetite nanowires have been realized through hydrothermal synthesis, [10] while MgO/Fe 3 O 4 core/ shell nanowires have been fabricated using the pulsed laser deposition (PLD) method.…”

Novel flame-gradient method for synthesis of metal-oxide channels, nanowires and nanorods

“…Recently, much attention has been given to the controlled synthesis of 1D iron oxide nanostructures [25][26][27] such as nanowires and nanorods. These materials have wide potential applications as catalysts, pigments, sensors, ferrofluids, magnetic recording and imaging materials.…”