Aspectos estruturais relacionados ao processo de troca iônica no niobato lamelar K4Nb6O17

Química Nova

Marcos A. Bizeto¹  Fernando P. Christino¹  Marina F. M. Tavares¹  Vera R. L. Constantino¹ 

[1] ,Universidade de São Paulo Instituto de Química São Paulo SP ,Brasil

关键词: K4Nb6O17;    ion exchange;    intercalation;   

DOI  :  10.1590/S0100-40422006000600013

来源: SciELO

【 摘 要 】

The niobate with formula K4Nb6O17 has a layered structure formed by stacked negative sheets and exchangeable cations in the interlayer region. In this study we discuss some structural aspects related to the ion exchange in layered hexaniobate based on X-ray diffractometry and vibrational Raman spectroscopy data. Hexaniobate has two distinct interlayer regions and the potassium ions of one interlayer in particular are preferably exchanged by other cations, leading to an interstratified material.

【 授权许可】

CC BY-NC   
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