Template-free Synthesis and Characterization of Leaf-like Fe-Ni Microstructures

Yang Cao1, Shi Gang Ai2, Jinglin Zhang1*, Ning Gu1, Shuangqi Hu1

1Department of Chemistry Engineering, North University of China, Taiyuan 030051, P.R. China

2College of Engineering, Peking University, Beijing 100871, P.R. China

Adv. Mater. Lett., 2013, Current Issue, 4 (2), pp 160-163

DOI: 10.5185/amlett.2012.6366

Publication Date (Web): Dec 09, 2012

E-mail: syyi@pku.edu.cn

Abstract


Leaf-like Fe-Ni alloy have been synthesized via a facile hydrothermal approach without any soft and hard template. The structure of the leaf-like Fe-Ni alloy was characterized by Scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray energy-dispersive spectroscopy (EDX). The dendrite trunks lengths of the leaf-like Fe-Ni alloy were about 2.0μm-8.5 μm, and those of the branch trunk ranged from 850.0 nm to 4.0 μm. Furthermore, it was founded that the formation of leaf-like Fe-Ni alloy strongly depended on the reaction temperature. Moreover, the magnetic and microwave absorption properties of products with various morphologies were also compared, and the result showed that the leaf-like Fe-Ni alloy had higher ferromagnetic and microwave absorption properties compared with spherical Fe-Ni alloy.

Keywords

Fe-Ni alloy, leaf-like, hydrothermal approach, magnetic properties, microwave absorption properties.

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