journal article·2012-02

Halloysite nanotubes coated with magnetic nanoparticles

Yi Zhang, Huaming Yang

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Abstract

Abstract Co nanoparticles were assembled on the surface of halloysite nanotubes (HNTs) to prepare one-dimensional magnetic Co-HNTs via electroless deposition. The samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectrometry (EDXS) and vibrating sample magnetometer (VSM). The cobalt nanoparticles of 3–7 nm in size were uniformly deposited on the surface of the nanotubes. The remanent magnetization (Mr), saturation magnetization (Ms) and coercivity (Hc) values of the Co-HNTs were 13.9 emu/g, 27.05 emu/g and 1659 Oe, respectively, larger than that of the pure Co nanoparticles (580.72 Oe). A mechanism of the deposition of the magnetic nanoparticles on the surface of the halloysite nanotubes is suggested. Co-HNTs showed an interesting potential in the field of magnetic devices.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Clay minerals and soil interactions · Iron oxide chemistry and applications · Crystal Structures and Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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