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Low-temperature synthesis of Bi2Fe4O9 nanoparticles via a hydrothermal method
Authors:Yonggang Wang  Gang Xu  Linlin Yang  Zhaohui Ren  Xiao Wei  Wenjian Weng  Piyi Du  Ge Shen  Gaorong Han
Affiliation:1. State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China;2. Shandong Research and Design Institute of Industrial Ceramics, Zibo 255031, PR China
Abstract:Bi2Fe4O9 (BFO) nanoparticles were successfully synthesized by a hydrothermal method at a temperature as low as 100 °C. The as-prepared powders, characterized by X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), transmission electron microscope (TEM) and physical property measurement system (PPMS), exhibited a pure BFO phase about 100 nm size with uniform sheet-like shape and exhibited an AF order at room temperature. It was found that high alkali concentration and alkali ion Na+ played a key role in the formation of BFO nanoparticles at a low temperature of 100 °C.
Keywords:Hydrothermal  Bi2Fe4O9 nanoparticles  Low temperature
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