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Ceria (Sm3+, Nd3+)/carbonates composite electrolytes with high electrical conductivity at low temperature by Wei Liu; Yanyi Liu; Bin Li; Taylor D. Sparks; Xi Wei; Wei Pan is a Engineering article available to read on EtoBox.

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## a b s t r a c t Composite electrolytes composed of Sm 3+ and Nd 3+ co-doped ceria (SNDC) and binary carbonates (Li 2 CO 3 -Na 2 CO 3 ) were investigated with respect to their microstructure, morphology and electrical conductivity. As a function of temperature, the electrical conductivity of the composite electrolytes was measured in air. The addition of (Li/Na) 2 CO 3 to SNDC enhanced the high temperature conductivity. The conductivity also rose sharply around the intenerating and melting point of carbonates. The best performance of 0.01 S/cm at 481 °C was achieved for the composite electrolyte containing 20 wt.% carbonates. It is also estimated that the reason for the conductivity enhancement of SNDC is that the number of oxygen transfer routes increases at the interface between SNDC and (Li/Na) 2 CO 3 .

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Author

Wei Liu; Yanyi Liu; Bin Li; Taylor D. Sparks; Xi Wei; Wei Pan

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0266-3538)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)