2019
DOI: 10.1016/j.jeurceramsoc.2018.09.029
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Lowering the sintering temperature of solid oxide fuel cell electrolytes by infiltration

Abstract: A dense electrolyte with a relative density of over 95% is vital to prevent gas leakage and thus the achievement of high open circuit voltage in solid oxide fuel cells (SOFCs). The densification process of ceria based electrolyte requires high temperatures heat treatment (i.e. 1400-1500 °C). Thus, the minimum co-sintering temperatures of the anode-electrode bilayers are fixed at these values, resulting in coarse anode microstructures and consequently poor performance. The main purpose of this study is to densi… Show more

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Cited by 17 publications
(6 citation statements)
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“…SOFC membrane is required to have tight electrolyte layer to avoid fuel crossover as supported by Sındırac et al 26 which found that dense electrolyte structure was able to provide good gas‐tightness property, preventing fuel crossover. Thus, nitrogen gas permeation test was performed to examine the effect of electrolyte thickness with different co‐sintering temperature toward the tightness property of that membrane.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…SOFC membrane is required to have tight electrolyte layer to avoid fuel crossover as supported by Sındırac et al 26 which found that dense electrolyte structure was able to provide good gas‐tightness property, preventing fuel crossover. Thus, nitrogen gas permeation test was performed to examine the effect of electrolyte thickness with different co‐sintering temperature toward the tightness property of that membrane.…”
Section: Resultsmentioning
confidence: 99%
“…The increment of sintering temperature promoted the fusion and bonding of the cermet particles which led to the higher value of mechanical strength and gave advantage in term of the toughness of the HFs. 12 SOFC membrane is required to have tight electrolyte layer to avoid fuel crossover as supported by Sındırac et al 26 which found that dense electrolyte structure was able to provide good gas-tightness property, preventing fuel crossover. Thus, nitrogen gas permeation test was performed to examine the effect of electrolyte thickness with different co-sintering temperature toward the tightness property of that membrane.…”
Section: The Effect Of Co-sintering Temperature and Electrolyte Thickness On The Properties Of Dlhfsmentioning
confidence: 99%
“…Ethylene glycol (C 2 H 6 O 2 , Merck >99.0%) was then slowly added into this solution until all polymerization and evaporation processes were completed. Finally, the precursor solution was diluted with ethylene glycol monobutyl ether (C 6 H 14 O 2 , Merck >99%) (1:1 weight ratio) to reduce the surface tension and also to enhance the wetting properties of the polymeric precursor 49–51 . This last reagent was added to the solution to reach the desired final salt concentration of ions (i.e., .004 and .01 M).…”
Section: Experimental Setup and Characterizationmentioning
confidence: 99%
“…Further, the effect of the use of this i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 4 5 ( 2 0 2 0 ) 3 5 1 3 9 e3 5 1 4 8 new solvent is discussed by looking into how it affects the resulting cathode layer coating micro-structure. In the recent years, some significant and promising results were achieved via methods which used polymeric precursor method with this solvent couple [50,52]. Therefore, it is well worth to investigate this solvent couple, whether it can be successfully used in ESD.…”
Section: Introductionmentioning
confidence: 99%