Synthesis of Pr<sub>0.6</sub>Sr<sub>0.4</sub>FeO<sub> 3-δ </sub>-xCe<sub>0.9</sub>Pr<sub>0.1</sub>O<sub> 2-δ </sub> cobalt-free composite cathodes by a one-pot method for intermediate-temperature solid oxide fuel cells
| Data(s) |
19/02/2016
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| Resumo |
<p>Cobalt-free composite cathodes consisting of Pr<sub>0.6</sub>Sr<sub>0.4</sub>FeO<sub> 3-δ </sub>-xCe<sub>0.9</sub>Pr<sub>0.1</sub>O<sub> 2-δ </sub> (PSFO-xCPO, x = 0-50 wt%) have been synthesized using a one-pot method. X-ray diffraction, scanning electron microscopy, thermal expansion coefficient, conductivity, and polarization resistance (R <sub> P </sub>) have been used to characterize the PSFO-xCPO cathodes. Furthermore the discharge performance of the Ni-SSZ/SSZ/GDC/PSFO-xCPO cells has been measured. The experimental results indicate that the PSFO-xCPO composite materials fully consist of PSFO and CPO phases and posses a porous microstructure. The conductivity of PSFO-xCPO decreases with the increase of CPO content, but R <sub> P </sub> of PSFO-40CPO shows the smallest value amongst all the samples. The power density of single cells with a PSFO-40CPO composite cathode is significantly improved compared with that of the PSFO cathode, exhibiting 0.43, 0.75, 1.08 and 1.30 W cm<sup>-2</sup> at 650, 700, 750 and 800 °C, respectively. In addition, single cells with the PSFO-40CPO composite cathode show a stable performance with no obvious degradation over 100 h when operating at 750 °C.</p> |
| Identificador |
http://dx.doi.org/10.1016/j.ijhydene.2016.01.005 http://www.scopus.com/inward/record.url?scp=84955590162&partnerID=8YFLogxK |
| Idioma(s) |
eng |
| Direitos |
info:eu-repo/semantics/closedAccess |
| Fonte |
Jin , C , Mao , Y , Rooney , D W , Sun , W , Zhang , N & Sun , K 2016 , ' Synthesis of Pr 0.6 Sr 0.4 FeO 3-δ -xCe 0.9 Pr 0.1 O 2-δ cobalt-free composite cathodes by a one-pot method for intermediate-temperature solid oxide fuel cells ' International Journal of Hydrogen Energy , vol 41 , no. 6 , pp. 4005-4015 . DOI: 10.1016/j.ijhydene.2016.01.005 |
| Palavras-Chave | #Cobalt-free composite cathode #Electrochemical performance #Intermediate-temperature solid oxide fuel cells #One-pot method #/dk/atira/pure/subjectarea/asjc/2100/2105 #Renewable Energy, Sustainability and the Environment #/dk/atira/pure/subjectarea/asjc/2100/2103 #Fuel Technology #/dk/atira/pure/subjectarea/asjc/3100/3104 #Condensed Matter Physics #/dk/atira/pure/subjectarea/asjc/2100/2102 #Energy Engineering and Power Technology |
| Tipo |
article |
