Effect of Ce0.8Sm0.2O1.9 interlayer on the electrochemical performance of La0.75Sr0.25Cr0.5Mn0.5O3−δ–Ce0.8Sm0.2O1.9 composite anodes for intermediate-temperature solid oxide fuel cells

He, Shoucheng; Chen, Han; Li, Ruifeng; Ge, Lin; Guo, Lucun

doi:10.1016/j.jpowsour.2013.12.071

Cited by 17 publications

(10 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The lowering of the operation temperature may help to decrease the maintenance cost and increase life time [5]. Therefore, considerable efforts are applied to development of SOFCs materials able to work at moderate temperatures [6][7][8][9][10]. In this relation, intensive studies are carried out in the search of electron and oxygen ion conducting materials with high transport parameters at 500-800°С.…”

Section: Introductionmentioning

confidence: 99%

Defect formation in double perovskites PrBaCo2−xCuxO5+δ at elevated temperatures

et al. 2015

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Defect formation in double perovskites PrBaCo2−xCuxO5+δ at elevated temperatures

et al. 2015

View full text Add to dashboard Cite

“…As a promising cathode material for CO 2 electroreduction in solid oxide electrolysis cell, (La,Sr) (Cr,Mn)O 3 (LSCM) perovskite has been largely explored as SOEC cathode for steam electrolysis [45], while it usually suffers from insufficient electrocatalytic activity and poor stability. The addition of Ce 0.8 Sm 0.2 O 1.9 (SDC) has been proved efficient for anode La 0.75 Sr 0.25 Cr 0.5 Mn 0.5 O 3-d (LSCM) in SOFC mode [46]. Two main processes are found from 0 to 2 V with CO 2 /air system for LSCM-SDC‰YSZ‰LSCM-SDC cell, which are the reduction of the LSCM electrode below 1.0 V and the electrolysis of CO 2 above 1.0 V, demonstrating the electrical properties of LSCM for CO 2 electrolysis correlates to the electrode polarizations in the symmetric cell [47].…”

Section: Lscm Basedmentioning

confidence: 99%

Developments in CO₂ Electrolysis of Solid Oxide Electrolysis Cell with Different Cathodes▴

Zhou

et al. 2020

Fuel Cells

View full text Add to dashboard Cite

Solid oxide electrolysis cell (SOEC) is a device that can efficiently convert excessive power of renewable energy, such as wind or solar energy into chemical energy. High temperature CO 2 electrolysis based on solid oxide electrolysis cell has been proved as an effective method to produce sustainable fuels and reduce greenhouse emissions. The performance of cathodes as the place where the electrolysis reaction takes place for fuel gas affects the efficiency of SOEC, whereas traditional cathodes show relatively low catalytic activity towards CO 2 electrolysis. In recent years, in addition to the optimization of traditional Ni-based cathodes, the research on perovskite cathodes with better redox stability has been carried out rapidly. In this paper, the development of different cathodes of solid oxide electrolysis cell used for CO 2 electrolysis is summarized, from the study of new materials with different doping ratios for CO 2 electrolysis, to the microstructure optimization of electrode. It was found, that both durability and catalytic activity for the cathode materials could significantly improve the performance of single cells of SOEC. Finally, more prospects for future research work are put forward.

show abstract

“…The crystal structures of the synthesized compounds at room temperature were identified by X-ray diffraction (XRD) with Cu Kα radiation. The device ARL X'TRA diffractometer was used and humidified H 2 as the fuel at a flow rate of 50 ml min -1 and stationary air as the oxidant [24].…”

Section: Characterizationmentioning

confidence: 99%

Investigation of La1−Sm−Sr CoO3−δ cathode for intermediate temperature solid oxide fuel cells

Chen

et al. 2017

Journal of Power Sources

Self Cite

View full text Add to dashboard Cite

La 1-x Sm x-y Sr y CoO 3-G (LSSC; x=0.475, 0.650, 0.825, y=0.35, 0.40, 0.45) compounds, which have the same compositions as the La 0.7 Sr 0.3 CoO 3-G (LSC) and Sm 0.5 Sr 0.5 CoO 3-G (SSC) mixture (corresponding mole ratio is 3:1, 1:1 and 1:3, respectively), are synthesized through a conventional solid-state reaction and characterized by X-ray diffraction, thermal expansion coefficient, X-ray photoelectron spectrometer and electrical conductivity measurement, as well as the electrochemical impedance spectra and single cell performance measurement. Interestingly, the experimental results reveal that with the linear increase of y in LSSC, the conductivity of the corresponding samples does not alter linearly but reaches a peak when y=0.35, namely, the maximum electrical conductivity enhancing from 2148 S cm-1 (LSC, y=0.30) and 1802 S cm-1 (SSC, y=0.50) to 2750 S cm-1 (y=0.35). In addition, this turning point coincidently corresponds to the structure transition from hexagonal (y=0.35) to orthorhombic (y=0.40). Furthermore, comparing with LSC and SSC, the cathode polarization resistance (R P) decreases by about 50% and 38%, respectively, after employing the LSSC (y=0.40) compound as cathode at 800 o C and 0.21 atm p(O 2), which also leads to an increment

show abstract

Effect of Ce0.8Sm0.2O1.9 interlayer on the electrochemical performance of La0.75Sr0.25Cr0.5Mn0.5O3−δ–Ce0.8Sm0.2O1.9 composite anodes for intermediate-temperature solid oxide fuel cells

Cited by 17 publications

References 29 publications

Defect formation in double perovskites PrBaCo2−xCuxO5+δ at elevated temperatures

Defect formation in double perovskites PrBaCo2−xCuxO5+δ at elevated temperatures

Developments in CO₂ Electrolysis of Solid Oxide Electrolysis Cell with Different Cathodes▴

Investigation of La1−Sm−Sr CoO3−δ cathode for intermediate temperature solid oxide fuel cells

Contact Info

Product

Resources

About

Effect of Ce0.8Sm0.2O1.9 interlayer on the electrochemical performance of La0.75Sr0.25Cr0.5Mn0.5O3−δ–Ce0.8Sm0.2O1.9 composite anodes for intermediate-temperature solid oxide fuel cells

Cited by 17 publications

References 29 publications

Defect formation in double perovskites PrBaCo2−xCuxO5+δ at elevated temperatures

Defect formation in double perovskites PrBaCo2−xCuxO5+δ at elevated temperatures

Developments in CO2 Electrolysis of Solid Oxide Electrolysis Cell with Different Cathodes▴

Investigation of La1−Sm−Sr CoO3−δ cathode for intermediate temperature solid oxide fuel cells

Contact Info

Product

Resources

About

Developments in CO₂ Electrolysis of Solid Oxide Electrolysis Cell with Different Cathodes▴