Title of article
Divalent ion exchange of alkaline-earth cations into the triple-layered perovskite RbCa2Nb3O10
Author/Authors
Mahler، نويسنده , , Charles H and Cushing، نويسنده , , Brian L and Lalena، نويسنده , , John N and Wiley، نويسنده , , John B، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1998
Pages
6
From page
1581
To page
1586
Abstract
Ion exchange reactions between the Dion-Jacobson-type, triple-layered perovskite RbCa2Nb3O10 and calcium, strontium, and barium cations were investigated. Exchange occurs in all systems, but only the strontium and barium systems form stable compounds. The final products, Rb1−xSrx/2Ca2Nb3O10 (x = 0.45) and Rb1−xBax/2Ca2Nb3O10 (x = 0.55), are isostructural with the parent. Unit cells contract upon replacement of rubidium with the smaller, more highly charged cation. The effect of layer contraction in directing the extent of exchange is discussed.
Keywords
A. Oxides , B. Chemical synthesis , C. Differential scanning calorimetry (DSC) , A. Layered compounds , C. X-ray diffraction
Journal title
Materials Research Bulletin
Serial Year
1998
Journal title
Materials Research Bulletin
Record number
2094142
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