Surfactant-assisted vapor diffusion synthesis of CoFe2O 4 hollow spheres

Min Fu; Qingze Jiao; Yun Zhao

doi:10.1142/S1793292014500532

Surfactant-assisted vapor diffusion synthesis of CoFe₂O ₄ hollow spheres

Min Fu, Qingze Jiao, Yun Zhao

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Uniform CoFe₂O₄ hollow spheres with diameter of about 300 nm and a shell thickness of approximately 60 nm were synthesized by a easy vapor diffusion method in the presence of polyvinyl pyrrolidone (PVP), in combination with calcination at 550°C. The structure and morphology of as-prepared samples were characterized by electron microscopy and X-ray diffractometry (XRD). The hollow spheres exhibited a high saturation magnetization value of 66.4 emu/g and coercivity of 417 Oe at room temperature. A possible formation mechanism for the CoFe₂O₄ hollow spheres was proposed.

Original language	English
Article number	1450053
Journal	Nano
Volume	9
Issue number	4
DOIs	https://doi.org/10.1142/S1793292014500532
Publication status	Published - Jun 2014

Keywords

PVP
hollow spheres
vapor diffusion

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10.1142/S1793292014500532

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abstract = "Uniform CoFe2O4 hollow spheres with diameter of about 300 nm and a shell thickness of approximately 60 nm were synthesized by a easy vapor diffusion method in the presence of polyvinyl pyrrolidone (PVP), in combination with calcination at 550°C. The structure and morphology of as-prepared samples were characterized by electron microscopy and X-ray diffractometry (XRD). The hollow spheres exhibited a high saturation magnetization value of 66.4 emu/g and coercivity of 417 Oe at room temperature. A possible formation mechanism for the CoFe2O4 hollow spheres was proposed.",

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author = "Min Fu and Qingze Jiao and Yun Zhao",

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AU - Fu, Min

AU - Jiao, Qingze

AU - Zhao, Yun

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N2 - Uniform CoFe2O4 hollow spheres with diameter of about 300 nm and a shell thickness of approximately 60 nm were synthesized by a easy vapor diffusion method in the presence of polyvinyl pyrrolidone (PVP), in combination with calcination at 550°C. The structure and morphology of as-prepared samples were characterized by electron microscopy and X-ray diffractometry (XRD). The hollow spheres exhibited a high saturation magnetization value of 66.4 emu/g and coercivity of 417 Oe at room temperature. A possible formation mechanism for the CoFe2O4 hollow spheres was proposed.

AB - Uniform CoFe2O4 hollow spheres with diameter of about 300 nm and a shell thickness of approximately 60 nm were synthesized by a easy vapor diffusion method in the presence of polyvinyl pyrrolidone (PVP), in combination with calcination at 550°C. The structure and morphology of as-prepared samples were characterized by electron microscopy and X-ray diffractometry (XRD). The hollow spheres exhibited a high saturation magnetization value of 66.4 emu/g and coercivity of 417 Oe at room temperature. A possible formation mechanism for the CoFe2O4 hollow spheres was proposed.

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KW - hollow spheres

KW - vapor diffusion

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Surfactant-assisted vapor diffusion synthesis of CoFe₂O ₄ hollow spheres

Abstract

Keywords

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