Title: Controllable one-dimensional FePt nanomaterials synthesised by chemical method

Authors: Wenli Pei; Chun Wu; Yang Zhang; Qiang Wang; Changshu He; Jianjun Wang; Kunhua Zhang; Xiang Zhao

Addresses: Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Key Laboratory for Electromagnetic Processing of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Kunming Institute of Precious Metals, Kunming 650106, China ' Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Key Laboratory for Electromagnetic Processing of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Kunming Institute of Precious Metals, Kunming 650106, China ' Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Key Laboratory for Electromagnetic Processing of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Kunming Institute of Precious Metals, Kunming 650106, China ' Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Key Laboratory for Electromagnetic Processing of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Kunming Institute of Precious Metals, Kunming 650106, China ' Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Key Laboratory for Electromagnetic Processing of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Kunming Institute of Precious Metals, Kunming 650106, China ' Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Key Laboratory for Electromagnetic Processing of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Kunming Institute of Precious Metals, Kunming 650106, China ' Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Key Laboratory for Electromagnetic Processing of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Kunming Institute of Precious Metals, Kunming 650106, China ' Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Key Laboratory for Electromagnetic Processing of Materials (MOE), School of Material Science and Engineering, Northeastern University, Shenyang 110086, Liaoning, China; Kunming Institute of Precious Metals, Kunming 650106, China

Abstract: Controllable FePt nanowires have been synthesised by tuning the reaction conditions. The growth mechanism of the FePt nanowires was investigated by analysing the samples obtained at different reaction stages in situ. The results show that there are two steps during formation of nanowires. The first step is nuclei and assembly process, in which FePt nuclei appear and grow up to fractions of the nanowire, and then the fractions with similar lattice fringes self-assemble to wire-like morphology under surfactant driving. The first step is foremost to control one-dimensional nanomaterials. The powerful surfactant and enough assembling time are key roles. The second step is the jointing and growing process. During this step, the connected fractions join onto each other and grow into nanowires. Based on this mechanism, we can easily achieve various one-dimensional nanomaterials from nanorods to nanowires with good quality by modifying surfactant and reactive temperature.

Keywords: FePt nanomaterials; iron-platinum nanoparticles; chemical method; one-dimensional nanomaterials; 1D nanomaterials; surfactant; nanotechnology; FePt nanowires; assembling time; nanorods; reactive temperature.

DOI: 10.1504/IJNT.2016.080360

International Journal of Nanotechnology, 2016 Vol.13 No.10/11/12, pp.801 - 808

Published online: 12 Nov 2016 *

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