Investigation of pyrolysis temperature in the one-step synthesis of L10 FePt nanoparticles from a FePt-containing metallopolymer

Qingchen Dong; Guijun Li; Hua Wang; Philip Wing-Tat Pong; Chi-Wah Leung; Ian Manners; Cheuk-Lam Ho; Hua Li; Wai-Yeung Wong

doi:10.1039/C4TC02058H

Investigation of pyrolysis temperature in the one-step synthesis of L1₀ FePt nanoparticles from a FePt-containing metallopolymer†

Qingchen Dong,*^ab Guijun Li,^c Hua Wang,^a Philip Wing-Tat Pong,^c Chi-Wah Leung,*^d Ian Manners,*^e Cheuk-Lam Ho,^bg Hua Li^bf and Wai-Yeung Wong*^abg

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* Corresponding authors

^a MOE Key Laboratory for Interface Science and Engineering in Advanced Materials and Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, 79 Yingze West Street, Taiyuan 030024, P. R. China
E-mail: dongqingchen@tyut.edu.cn

^b Institute of Molecular Functional Materials, Department of Chemistry, Partner State Key Laboratory of Environmental and Biological Analysis and Institute of Advanced Materials, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
E-mail: rwywong@hkbu.edu.hk
Fax: +852-3411-7348

^c Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China

^d Department of Applied Physics, Hong Kong Polytechnic University, Hung Hom, Hong Kong, P. R. China

^e School of Chemistry, University of Bristol, Bristol, UK
E-mail: Ian.Manners@bristol.ac.uk

^f College of Life and Environmental Sciences & Beijing Engineering Research Center of Food Environment and Public Health, Minzu University of China, Beijing 100081, P. R. China

^g HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen 518057, P. R. China

Abstract

Ferromagnetic (L1₀ phase) FePt alloy nanoparticles (NPs) with extremely high magnetocrystalline anisotropy are considered to be very promising candidates for the next generation of ultrahigh-density data storage systems. The question of how to generate L1₀ FePt NPs with high coercivity, controllable size, and a narrow size distribution is a challenge. We report here a single-step fabrication of L1₀ FePt NPs by employing one of the two new polyferroplatinyne bimetallic polymers as precursors. The influence of the pyrolysis temperature on the size and magnetic properties of the resulting FePt alloy NPs has been investigated in detail.

This article is part of the themed collection: 2015 Journal of Materials Chemistry C Hot Papers

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Article information

DOI: https://doi.org/10.1039/C4TC02058H
Article type: Paper
Submitted: 13 Sep 2014
Accepted: 10 Nov 2014
First published: 14 Nov 2014

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J. Mater. Chem. C, 2015,3, 734-741

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Investigation of pyrolysis temperature in the one-step synthesis of L1₀ FePt nanoparticles from a FePt-containing metallopolymer

Q. Dong, G. Li, H. Wang, P. Wing-Tat Pong, C. Leung, I. Manners, C. Ho, H. Li and W. Wong, J. Mater. Chem. C, 2015, 3, 734 DOI: 10.1039/C4TC02058H

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Journal of Materials Chemistry C