SmBaCoCuO5+x as cathode material based on GDC electrolyte for intermediate-temperature solid oxide fuel cells

Lü, Shiquan; Long, Guohui; Ji, Yuan; Meng, Xiuxia; Zhao, Hongyuan; Sun, Cuicui

doi:10.1016/j.jallcom.2010.11.128

Cited by 32 publications

(12 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The chemical compatibility of SBCCO material with GDC powders has been 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 3 7 ( 2 0 1 2 ) 1 8 3 1 9 e1 8 3 2 5 already studied in our previous work [19]. Previous works have shown that no reaction products were detected by XRD after sintering at 950 C for 2 h and 800 C for 20 h. Our observations indicate that SBCCO has a good chemical compatibility with GDC electrolyte, supporting its use as a composite cathode in IT-SOFCs.…”

Section: Chemical Compatibility and Thermal Expansion Behaviormentioning

confidence: 92%

“…And details were described in our previous work [19]. Powders of Ce 0.9 Gd 0.1 O 1.95 (GDC) and NiO were synthesized using the glycineenitrate combustion method [22].…”

Section: Powder Synthesismentioning

confidence: 99%

“…Impedance data of sample SBCCO were taken from Ref. [19]. interfacial polarization resistance among the SBCCOeGDC composite cathode.…”

Section: Electrochemical Analysis On Symmetrical Cellsmentioning

confidence: 99%

“…Partial substitution of cobalt element with other transition metal cations in these materials could potentially mitigate this disadvantage. More recently, our group have reported that SmBaCoCuO 5þd (SBCCO) exhibited good electrochemical performance and lower TEC (15.5 Â 10 À6 K À1 ) [19]. Unfortunately, the TEC of SBCCO is still a little higher than that of electrolyte materials.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Performances of SmBaCoCuO5+δ–Ce0.9Gd0.1O1.95 composite cathodes for intermediate-temperature solid oxide fuel cells

Lü

Meng

Zhang

et al. 2012

International Journal of Hydrogen Energy

Self Cite

View full text Add to dashboard Cite

Section: Chemical Compatibility and Thermal Expansion Behaviormentioning

confidence: 92%

“…And details were described in our previous work [19]. Powders of Ce 0.9 Gd 0.1 O 1.95 (GDC) and NiO were synthesized using the glycineenitrate combustion method [22].…”

Section: Powder Synthesismentioning

confidence: 99%

“…Impedance data of sample SBCCO were taken from Ref. [19]. interfacial polarization resistance among the SBCCOeGDC composite cathode.…”

Section: Electrochemical Analysis On Symmetrical Cellsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performances of SmBaCoCuO5+δ–Ce0.9Gd0.1O1.95 composite cathodes for intermediate-temperature solid oxide fuel cells

Lü

Meng

Zhang

et al. 2012

International Journal of Hydrogen Energy

Self Cite

View full text Add to dashboard Cite

“…Pero según nuestros resultados, los coeficientes pueden aumentar cuando en el compuesto LSCM se aumenta la sustitución parcial de los iones de Cu 2+ en la estructura cristalina, lo cual conduce a incrementar el volumen de la celda [25]. La tendencia de los datos del coeficiente de expansión térmica sugiere que las muestras con 25 y 35% de Cu representan los ánodos más apropiados para aplicaciones en las celdas SOFC; además, estos resultados pueden permitir el uso de diversos materiales para los demás componentes de la celda, por ejemplo en electrólitos tipo Gd 0,2 Ce 0,8 O 2-␦ (TEC ≈ 12,9 m m −1 • C −1 ) [46][47][48] y Sm 0,2 Ce 0,8 O 2-␦ (TEC ≈ 13,3 m m −1 • C −1 ) [49,50]; cátodos como el material La 0,6 Sr 0,4 MnO 3 (TEC ≈ 13 m m −1 • C) [51]; e interconectores como el material LaCr 0,9 Co 0,1 O 3 (TEC ≈ 13,1 m m −1 • C) [52], así como algunos otros compuestos base Cr o Ni [53]. De esta manera se pueden evitar problemas como fracturas en la interface del ánodo.…”

Section: Coeficiente De Expansión Térmicaunclassified

Impregnación de la perovskita La0.8Sr0.2Cr0.5Mn0.5O3-δ como ánodo en celdas SOFC

Flores¹,

Cabrera²,

Valencia³

et al. 2015

Boletín de la Sociedad Española de Cerámica y Vidrio

View full text Add to dashboard Cite

información del artículo Historia del artículo: Recibido el 11 de mayo de 2015 Aceptado el 20 de julio de 2015 On-line el xxx Palabras clave: Celdas de combustible de óxido sólido Sol-gel Estructura de la perovskita Impregnación r e s u m e n Se han sintetizado a través del método sol-gel, y caracterizado por varias técnicas, nuevos compósitos tipo perovskita de La 0,8 Sr 0,2 Cr 0,5 Mn 0,5 O 3-␦ (LSCM), utilizando cobre (XCu; X = 25, 35 y 45%) como aditivo formador del cermet LSCM + Cu para utilizarse como ánodos alternativos en celdas de combustible de óxido sólido de temperatura intermedia (IT-SOFC). Se confirma por difracción de rayos X (XRD) la formación de fase de los cermets LSCM-Cu. La conductividad eléctrica obtenida desde temperatura ambiente hasta 800 • C indica la presencia de 2 tipos de comportamiento tanto semiconductor como metálico. Cuando la concentración de Cu fue del 25 y del 35%, el comportamiento que dominó fue del tipo semiconductor. La determinación de los coeficientes de expansión térmica (TEC) mostró una dependencia lineal inversamente proporcional a la concentración de Cu. Nuestros resultados de conductividad eléctrica, análisis morfológico y TEC sugieren que los ánodos con 25 y 35% de Cu tienen la mayor posibilidad para aplicarse en las celdas tipo SOFC-IT. © 2015 Publicado por Elsevier España, S.L.U. en nombre de SECV. Este es un artículo Open Access bajo la licencia CC BY-NC-ND (http://creativecommons.org/licenses/by-nc-nd/4.0/). Keywords: Solid oxide fuel cells Sol-gel Perovskite structure Impregnation a b s t r a c t New types of La 0,8 Sr 0,2 Cr 0,5 Mn 0,5 O 3-␦ (LSCM) perovskite composites with the addition of copper(Cu), XCu (X = 25, 35 and 45%) as forming additive, were synthesized via the sol-gel method as alternative anodes for intermediate-temperature solid oxide fuel cells (IT-SOFCs) and characterized by several techniques. Phase formation of the LSCM-Cu cermets was confirmed by X-ray diffraction (XRD). Electrical conductivity was obtained from room temperature to 800 • C, indicating the presence of two types of behaviors: both semiconductor and metal. When the concentration of Cu was 25 and 35%, the dominant behavior was the semiconductor type. The thermal expansion coefficient (TEC) determined was linearly inversely proportional to the concentration of Cu. The results of electrical conductivity, TEC, * Autor para correspondencia.Correo electrónico: cedhryck@hotmail.com (J. Alvarado-Flores). http://dx.

show abstract

Interfacial energy barrier: A crucial factor affecting cathodic polarization resistance of solid oxide fuel cells

Cui

Pang

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

The decrease in cathodic polarization resistance is crucial for the development of advanced solid oxide fuel cells (SOFCs). This can be achieved by using functional ceramic catalysts for enhancing the oxygen reduction reaction. In addition to the bulk and surface properties of the catalysts, the cathode/electrolyte interfacial energy barrier also affects the cathodic polarization resistance of SOFCs. Accordingly, in this study, cells with different interface structures were designed and tested to determine the effect of the interface on the cell performance. The cell with the cathode/electrolyte interface formed by employing Nd 1/2 Ba 1/2 Co 1/3 Fe 1/3 Mn 1/3 O 3Àδ as the cathode and Gd 0.1 Ce 0.9 O 1.95 as the electrolyte exhibited an interfacial polarization resistance of 0.12 Ω cm 2 at 750 C, which was 69.8% of the total cathodic polarization resistance. By comparison, the cell with the cathode/electrolyte interface formed by employing Nd 1/2 Ba 1/2 Co 1/3 Fe 1/3 Mn 1/3 O 3Àδ as the cathode and La 0.8 Sr 0.2 Ga 0.8 Mg 0.2 O 3 as the electrolyte demonstrated a decreased in the cathodic polarization resistance from 0.140 to 0.088 Ω cm 2 at 750 C. Therefore, different interfacial energy barriers resulted in variable oxygen anion diffusions through the cathode/electrolyte heterogeneous interface. The above-mentioned findings can provide useful data for the design and development of high-performance SOFCs.

show abstract

SmBaCoCuO5+x as cathode material based on GDC electrolyte for intermediate-temperature solid oxide fuel cells

Cited by 32 publications

References 39 publications

Performances of SmBaCoCuO5+δ–Ce0.9Gd0.1O1.95 composite cathodes for intermediate-temperature solid oxide fuel cells

Performances of SmBaCoCuO5+δ–Ce0.9Gd0.1O1.95 composite cathodes for intermediate-temperature solid oxide fuel cells

Impregnación de la perovskita La0.8Sr0.2Cr0.5Mn0.5O3-δ como ánodo en celdas SOFC

Interfacial energy barrier: A crucial factor affecting cathodic polarization resistance of solid oxide fuel cells

Contact Info

Product

Resources

About