Drisko, GL;
Gatel, C;
Fazzini, P-F;
Ibarra, A;
Mourdikoudis, S;
Bley, V;
Fajerwerg, K;
... Kahn, M; + view all
(2018)
Air-Stable Anisotropic Monocrystalline Nickel Nanowires Characterized Using Electron Holography.
Nano Letters
, 18
(3)
pp. 1733-1738.
10.1021/acs.nanolett.7b04791.
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Abstract
Nickel is capable of discharging electric and magnetic shocks in aerospace materials thanks to its conductivity and magnetism. Nickel nanowires are especially desirable for such an application as electronic percolation can be achieved without significantly increasing the weight of the composite material. In this work, single-crystal nickel nanowires possessing a homogeneous magnetic field are produced via a metal–organic precursor decomposition synthesis in solution. The nickel wires are 20 nm in width and 1–2 μm in length. The high anisotropy is attained through a combination of preferential crystal growth in the ⟨100⟩ direction and surfactant templating using hexadecylamine and stearic acid. The organic template ligands protect the nickel from oxidation, even after months of exposure to ambient conditions. These materials were studied using electron holography to characterize their magnetic properties. These thin nanowires display homogeneous ferromagnetism with a magnetic saturation (517 ± 80 emu cm–3), which is nearly equivalent to that of bulk nickel (557 emu cm–3). Nickel nanowires were incorporated into carbon composite test pieces and were shown to dramatically improve the electric discharge properties of the composite material.
| Type: | Article |
|---|---|
| Title: | Air-Stable Anisotropic Monocrystalline Nickel Nanowires Characterized Using Electron Holography |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.nanolett.7b04791 |
| Publisher version: | https://doi.org/10.1021/acs.nanolett.7b04791 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Technology, Chemistry, Multidisciplinary, Chemistry, Physical, Nanoscience & Nanotechnology, Materials Science, Multidisciplinary, Physics, Applied, Physics, Condensed Matter, Chemistry, Science & Technology - Other Topics, Materials Science, Physics, Electron holography, electric discharge, ligand stabilization, magnetism, nanowires, nickel, MAGNETIC-PROPERTIES, GOLD NANORODS, NI, NANOPARTICLES, GROWTH, MECHANISM, CONFIGURATIONS, SURFACE, METALS, SHAPES |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10060004 |
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