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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/11064

Title: Na2SO4Al2O3 composite electrolytes: some interesting observations
Authors: JAIN, A
SAHA, S
GOPALAN, P
KULKARNI, A
Keywords: electrical-conductivity
ionic-conductivity
solid electrolytes
charge
size
Issue Date: 2000
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Citation: MATERIALS RESEARCH BULLETIN, 35(14-15), 2337-2342
Abstract: In the Na2SO4-Al2O3 system, the variation in electrical conductivity with composition and dispersoid size stands in stark contrast to that of most other reported composite systems. Two maxima, instead of one, are observed in the conductivity vs, composition plot, at 5.5 and 35 mol% Al2O3. Maximum conductivity enhancement is observed for 35 mol% Al2O3. The increase is about 20 times at 400 degreesC and 450 times at 200 degreesC. Possible conductivity enhancement mechanisms operating in this system are suggested. Surprisingly, the reduction in alumina particle size from 0.5 to 0.004 mum does not bring about any further enhancement in conductivity. (C) 2001 . .
URI: http://dx.doi.org/10.1016/S0025-5408(00)00430-X
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11064
http://hdl.handle.net/10054/11064
ISSN: 0025-5408
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