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Wire-in-tube structure fabricated by single capillary electrospinning via nanoscale Kirkendall effect: the case of nickel–zinc ferrite

Fu, J; Zhang, J; Peng, Y; Zhao, C; He, Y; Zhang, Z; Pan, X; Mellors, NJ; Xie, E

Authors

J Fu

J Zhang

Y Peng

C Zhao

Y He

Z Zhang

X Pan

NJ Mellors

E Xie



Abstract

Wire-in-tube structures have previously been prepared using an electrospinning method by means of tuning hydrolysis/alcoholysis of a precursor solution. Nickel–zinc ferrite (Ni0.5Zn0.5Fe2O4) nanowire-in-nanotubes have been prepared as a demonstration. The detailed nanoscale characterization, formation process and magnetic properties of Ni0.5Zn0.5Fe2O4 nanowire-in-nanotubes has been studied comprehensively. The average diameters of the outer tubes and inner wires of Ni0.5Zn0.5Fe2O4 nanowire-in-nanotubes are around 120 nm and 42 nm, respectively. Each fully calcined individual nanowire-in-nanotube, either the outer-tube or the inner-wire, is composed of Ni0.5Zn0.5Fe2O4 monocrystallites stacked along the longitudinal direction with random orientation. The process of calcining electrospun polymer composite nanofibres can be viewed as a morphologically template nucleation and precursor diffusion process. This allows the nitrates precursor to diffuse toward the surface of the nanofibres while the oxides (decomposed from hydroxides and nitrates) products diffuse to the core region of the nanofibres; the amorphous nanofibres transforming thereby into crystalline nanowire-in-nanotubes. In addition, the magnetic properties of the Ni0.5Zn0.5Fe2O4 nanowire-in-nanotubes were also examined. It is believed that this nanowire-in-nanotube (sometimes called core–shell) structure, with its uniform size and well-controlled orientation of the long nanowire-in-nanotubes, is particularly attractive for use in the field of nano-fluidic devices and nano-energy harvesting devices.

Citation

Fu, J., Zhang, J., Peng, Y., Zhao, C., He, Y., Zhang, Z., …Xie, E. (2013). Wire-in-tube structure fabricated by single capillary electrospinning via nanoscale Kirkendall effect: the case of nickel–zinc ferrite. Nanoscale, 5(24), 12551. https://doi.org/10.1039/C3NR03330A

Journal Article Type Article
Acceptance Date Oct 4, 2013
Online Publication Date Oct 7, 2013
Publication Date Oct 7, 2013
Deposit Date Feb 10, 2017
Journal Nanoscale
Print ISSN 2040-3364
Electronic ISSN 2040-3372
Publisher Royal Society of Chemistry
Volume 5
Issue 24
Pages 12551
DOI https://doi.org/10.1039/C3NR03330A
Publisher URL http://dx.doi.org/10.1039/C3NR03330A
Related Public URLs https://www.researchgate.net/profile/Jiecai_Fu/publication/258203719_Wire-in-tube_structure_fabricated_by_single_capillary_electrospinning_via_nanoscale_Kirkendall_effect_The_case_of_nickel-zinc_ferrite/links/00b7d52b5092842779000000.pdf



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