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Effect of homovalent anion doping on the conductivity and phase transitions in Na2SO4

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Title Effect of homovalent anion doping on the conductivity and phase transitions in Na2SO4
 
Creator GOMATHY, S
GOPALAN, P
KULKARNI, AR
 
Subject electrical-conductivity
solid electrolytes
doped na2so4
sulfate
system
transport
detector
dioxide
 
Description An attempt has been made to understand the effect of doping homovalent anion dopants such as CO32-, B4O72-, MoO42-, and WO42- on the conductivity and phase transitions of Na2SO4 by means of XRD, DSC, and impedance measurements. Our studies indicate that the observed conductivity enhancement is largely due to an increase in the free volume in the structure. Apart from the size, the shape and orientational ordering of the dopant ion in the sulfate sublattice seem to influence the activation energy. The structure of the guest anion appears to be one of the major factors determining the phase stabilization of Na2SO4 (I) at low temperatures, (C) 1999
 
Publisher ACADEMIC PRESS INC
 
Date 2011-07-12T12:23:40Z
2011-12-26T12:48:52Z
2011-12-27T05:34:22Z
2011-07-12T12:23:40Z
2011-12-26T12:48:52Z
2011-12-27T05:34:22Z
1999
 
Type Article
 
Identifier JOURNAL OF SOLID STATE CHEMISTRY, 146(1), 6-12
0022-4596
http://dx.doi.org/10.1006/jssc.1999.8258
http://dspace.library.iitb.ac.in/xmlui/handle/10054/3324
http://hdl.handle.net/10054/3324
 
Language en