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BiMnO3 nanopowders synthesized at low temperature and low pressure nanoparticles and their physical properties

Yao Chang-Da Geng Fang-Fang Gao Hong Xu Yun-Ling Zhang Ai-Mei Tang Chun-Mei Zhu Wei-Hua Gong Jiang-Feng

BiMnO3 nanopowders synthesized at low temperature and low pressure nanoparticles and their physical properties

Yao Chang-Da, Geng Fang-Fang, Gao Hong, Xu Yun-Ling, Zhang Ai-Mei, Tang Chun-Mei, Zhu Wei-Hua, Gong Jiang-Feng
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  • Received Date:  02 November 2009
  • Accepted Date:  01 December 2009
  • Published Online:  05 April 2010

BiMnO3 nanopowders synthesized at low temperature and low pressure nanoparticles and their physical properties

  • 1. (1)Collage of Physics Hehai University,Nanjing 210098,China; (2)Collage of Physics Hehai University,Nanjing 210098,China; National Laboratory of Solid State Microstructures Nanjing University,Nanjing 210093,China

Abstract: Perovskite-type BiMnO3, in which ferroelectricity and ferromagnetism co-exist,has potential applications in sensor and information storage. Usually, BiMnO3 is synthesized under high temperature and high pressure in a gold capsule,which restricts its application and development extremely. In this paper, we synthesize the BiMnO3 nanopowders with MnCl2·4H2O,Bi2O3, NaOH,HNO3 and polyglycol at 100 ℃ by the co-precipitation method successfully, in which the conditions of temperature and pressure are reduced, thereby economizing the energy sources and lowering the cost. Their microstructure and magnetic properties are measured by using X-ray diffraction (XRD), transmission electron microscope(TEM) and vibration sample magnetometer(VSM). The effects of synthetical condition and the calcined temperature are also discussed.

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