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Journal of Inorganic Materials

Journal of Inorganic Materials >

2007 , Vol. 22 >Issue 2: 247 - 252

DOI: https://doi.org/10.3724/SP.J.1077.2007.00247

Research Paper

Hydrothermal Synthesis of Sodium Niobate (NaNbO 3 ) Powders

  • WANG Ying ,
  • YI Zhi-Guo ,
  • YANG Qun-Bao ,
  • WANG Dong ,
  • LI Yong-Xiang
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  • 1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 2. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China

Received date: 2006-03-10

  Revised date: 2006-06-22

  Online published: 2007-03-20

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Abstract

The hydrothermal synthesis of sodium niobate (NaNbO3) powders with orthorhombic structure using Nb2O5 and NaOH as raw materials, KOH as mineralizer, was investigated. The powders were identified by X-ray powder diffraction (XRD) and the Fourier transform infrared (FTIR). The microstructural evolution and the particle size of the samples were examined by scanning electron microscope (SEM), and the main chemical compositions of the powders were studied by EPMA. It is found that there is super-structure existing in NaNbO3 powders by TEM and EDS analysis. The experimental results show that the alkaline concentration and reaction time have influences on the crystal structure and morphology of the resultant powders.

Key words： sodium niobate; hydrothermal synthesis; powder; crystal

Cite this article

WANG Ying , YI Zhi-Guo , YANG Qun-Bao , WANG Dong , LI Yong-Xiang . Hydrothermal Synthesis of Sodium Niobate (NaNbO 3 ) Powders[J]. Journal of Inorganic Materials, 2007 , 22(2) : 247 -252 . DOI: 10.3724/SP.J.1077.2007.00247

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