Magnetic properties and electrocatalytic properties of Fe5C2 particles with different morphologies

Fe 5 C 2 particle is a promising magnetic material, but there are few reports on pure phase Fe 5 C 2 particle with adjustable morphology. Herein, pure phase Fe 5 C 2 magnetic materials with different morphologies were prepared by a simple ethylenediamine carbonization method. This method included th...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2022, Vol.33 (2), p.884-893
Main Authors: Kong, Fanqi, Qie, Yaqin, Liu, Yixuan, Yang, Zhilin, Shi, Zhan, Yang, Hua
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coercivity
Electrocatalysts
Ethylenediamine
Hydrogen evolution reactions
Magnetic materials
Magnetic properties
Magnetic saturation
Magnetism
Materials Science
Morphology
Optical and Electronic Materials
Precursors
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Summary:Fe 5 C 2 particle is a promising magnetic material, but there are few reports on pure phase Fe 5 C 2 particle with adjustable morphology. Herein, pure phase Fe 5 C 2 magnetic materials with different morphologies were prepared by a simple ethylenediamine carbonization method. This method included the preparation of FeC 2 O 4 ·2H 2 O precursors with different morphologies and the co-calcination process of ethylenediamine and the precursors. At the same time, the optimum experimental conditions for the formation of pure phase Fe 5 C 2 particles with different morphologies were investigated. More importantly, the magnetic properties of Fe 5 C 2 particles and the electrocatalytic activities of Fe 5 C 2 particles as electrocatalysts for the hydrogen evolution reaction (HER) are improved by adjusting the morphologies of Fe 5 C 2 particles. The saturation magnetization ( M s ) and coercivity ( H c ) of Fe 5 C 2 particle with the cuboid rod-like structure can reach 134.53 emu/g and 305.93 Oe, respectively, demonstrating good soft magnetic properties at 298 K. Simultaneously, the Fe 5 C 2 particle with the porous cuboid rod-like structure exhibits efficient HER activity (225 mV for j  = − 10 mA cm −2 ). In this work, a simple and generalized Fe 5 C 2 particle synthesis method is proposed, and new explorations are provided for the further applications of Fe 5 C 2 particles with different morphologies in the fields of magnetism and catalysis.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-021-07358-4