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无机材料学报

无机材料学报

• 研究论文 • 上一篇    

阴离子在形成纺锤形α-FeOOH中的作用

朱昊果; 陆轻铱; 曾京辉; 宋宝珍+; 曾桓兴   

  1. 中国科学技术大学材料科学与工程系; 合肥230026; +中国科学院化工冶金所; 北京100080
  • 收稿日期:1997-03-18 修回日期:1997-04-28 出版日期:1998-06-20 网络出版日期:1998-06-20

Function of Anion in the Synthetic Process of Spindle-shaped α-FeOOH

ZHU Hao-Guo; LU Qing-Yi; ZENG JingHui; SONG Bao-Zhen+; ZENG Huan-Xing   

  1. Dept. of Material Science Bngineering; USTC Hefei 230026 China; +Institute of Chemical Engineering and Metallurpy; CAS Beijing 100080 China
  • Received:1997-03-18 Revised:1997-04-28 Published:1998-06-20 Online:1998-06-20

PDF (PC)

832

被引次数

6

摘要： 通过用不同碱类或混合碱分别和FeSO4反应，合成了纺锤形α－FeOOH；用TEM观察产物的形貌，结果显示：纺锤形α－FeOOH生成的轴比与［OH-］有关，［OH-］越高，形成的轴比越大，的浓度越大，短轴越长，轴比减小，越趋于椭球形.形成纺锤形粒子的本质原因可能是通过离子的链接凝并作用.

关键词: 纺锤形α－FeOOH, 碳酸根离子, 氢氧根离子, 凝并

Abstract: Spindle-shaped α-FeOOH was prepared from FeSO4 and different alkalis or mired alhalisrespectively. The morphology of a-FeOOH was observed with TEM. The result shows that its axisratio related to [OH-], the higher concentration of [OH-], the longer axis ratio; α-FeOOH waslike the ellipsoid with caxbonic concentration increasing, because the short tals became Ionger andxis ratio smaller. The essential cause of formating spindle-shaped α-FeOOH particles was thecoagulation of CO ion bond.

Key words: spindle α-FeOOH, carbonic ion, hydroxy aggregate

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