Sr2Fe1.4Mn0.1Mo0.5O6−δ perovskite cathode for highly efficient CO2 electrolysis

Jiang, Yongcheng; Yang, Yi; Xia, Changrong; Bouwmeester, Henny J.M.

doi:10.1039/c9ta07689a

Cited by 76 publications

(46 citation statements)

References 45 publications

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“…The test of 12.8 wt.% GDC‐SFM cell showed stability for over 60 h at 1.2 V and 800 °C. By doping of SFM with Mn, Sr 2 Fe 1.4 Mn 0.1 Mo 0.5 O 6– δ (SFMM) showed similar redox stability as SFM but enhanced in oxygen transport, CO 2 adsorption and reduction kinetics 63. The SFMM‐SDC composite electrode further exhibits excellent coking resistance, which can achieve a current density of 1.35 A cm 2 at 800 °C at 1.5 V for electrolysis of pure CO 2 .…”

Section: Development Of Soec Cathodes For Co2electrolysismentioning

confidence: 99%

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

Zhou

et al. 2020

Fuel Cells

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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.

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Section: Development Of Soec Cathodes For Co2electrolysismentioning

confidence: 99%

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

Zhou

et al. 2020

Fuel Cells

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“…In general, the catalysis performance of perovskite‐based oxides can be improved by partially doping the A‐site/B‐site with alkaline earth metal ions or valence‐active ions. The substitution may apply or influence the B‐O‐B' redox couples to facilitate electron and ion transportation and increase the surface oxygen vacancy concentration for the enhanced adsorption and diffusion of CO 2 , thereby effectively improve the catalysis activity 15–17. Zhang et al.…”

Section: Introductionmentioning

confidence: 99%

“…Jiang et al. synthesized Sr 2 Fe 1.4 Mn 0.1 Mo 0.5 O 6– δ ‐Ce 0.8 Sm 0.2 O 1.9 (SFMM 0.1 ‐SDC) as the fuel electrode, the CO 2 reduction kinetics was accelerated compared with SFM, and the current density reached 1.35 A cm −2 at 1.5 V and 800 °C 17.…”

Section: Introductionmentioning

confidence: 99%

“…[ * ] Corresponding author, zhengyifeng@njtech.edu.cn can be improved by partially doping the A-site/B-site with alkaline earth metal ions or valence-active ions. The substitution may apply or influence the B-O-B' redox couples to facilitate electron and ion transportation and increase the surface oxygen vacancy concentration for the enhanced adsorption and diffusion of CO 2 , thereby effectively improve the catalysis activity [15][16][17]. Zhang et al doped Ce into the A-site of LSCrF as La 0.65 Sr 0.3 Ce 0.05 Cr 0.5 Fe 0.5 O 3-d (Ce-LSCrF) and showed that the mixed oxidation states of Ce-doping (Ce 3+ /Ce 4+ ) introduced additional oxygen vacancies for enhancing CO 2 chemical adsorption in the reduced Ce-LSCrF [15].…”

mentioning

confidence: 99%

“…Liu et al reported that Ni-doping of LSF (LSFN) as the fuel electrode of SOEC and the partial replacement of Fe by Ni extended the reactive sites for CO 2 electrolysis, and the current density was 1.21 A cm -2 at 1.55 V and 850°C [16]. Jiang et al synthesized Sr 2 Fe 1.4 Mn 0.1 Mo 0.5 O 6-d -Ce 0.8 Sm 0.2 O 1.9 (SFMM 0.1 -SDC) as the fuel electrode, the CO 2 reduction kinetics was accelerated compared with SFM, and the current density reached 1.35 A cm -2 at 1.5 V and 800°C [17].…”

mentioning

confidence: 99%

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Ca/Cu Co‐doped SmFeO₃ as a Fuel Electrode Material for Direct Electrolysis of CO₂ in SOECs▴

et al. 2020

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The electrochemical conversion of CO 2 to CO by using solid oxide electrolysis cell (SOEC) is an attractive technology for sustainable utilization of greenhouse gas to chemicals. In this work, Ca and/or Cu doped SmFeO 3 perovskite materials in the form of Sm 1-x Ca x Fe 1-y Cu y O 3-d (x = 0, y = 0; x = 0.1, y = 0; x = 0, y = 0.1; x = 0.1, y = 0.1) are evaluated as SOEC fuel electrode for direct electrolysis of CO 2. The Ca and Cu co-doped sample Sm 0.9 Ca 0.1 Fe 0.9 Cu 0.1 O 3-d (SCFCO) presents the highest electrical conductivity value of 15.18 S cm-1 among all of the samples under CO 2 atmosphere at 700°C. The electrochemical impedance spectroscopy analysis reveals that the CO 2 dissociative adsorption and charge transfer of Ca and Cu co-doped fuel electrode are significantly enhanced, resulting in the greatly decrease in polarization resistance compared with that of the undoped sample. The current density of an electrolyte-supported single cell with the SCFCO fuel electrode reaches as high as 1.20 A cm-2 at the applied voltage of 1.5 V and 800°C, which is 60% higher than that of the SmFeO 3-d fuel electrode. Furthermore, the cell shows an impressive stability for the durability test, indicating the excellent electrocatalysis performance and coking tolerance of SCFCO as a promising fuel electrode material for direct electrolysis of CO 2 .

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In Situ Exsolution of Quaternary Alloy Nanoparticles for CO₂‐CO Mutual Conversion Using Reversible Solid Oxide Cells

Luo,

Zhang,

Liu

et al. 2024

Adv Funct Materials

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Reversible solid oxide cell is a promising energy storage and conversion device for CO2‐CO mutual conversion, with simplified cell configuration and performance stability. One key technical challenge is the lack of catalytically active and carbon‐tolerant fuel electrodes. The other one is still a lack of the kinetics mechanism and the redox stability of the active interface. Herein, the findings of a fuel electrode composed of a Sr2Fe1.0Co0.2Ni0.2Cu0.2Mo0.4O6‐δ medium‐entropy perovskite matrix decorated with in situ exsolved Fe‐Co‐Ni‐Cu quaternary alloy nanoparticles (QA@SFO) are reported. Under a reducing atmosphere, the exsolution of the quaternary alloy is accompanied by a structural transformation from double perovskite to layered perovskite, forming an interface structure where alloy nanoparticles are strongly pinned to the substrate with abundant oxygen vacancies. Electrochemically, the highly active sites provided by the QA@SFO interface greatly enhance the kinetics of CO2‐CO mutual conversion and exhibit outstanding durability for over 300 h at 1.3 V and 800 °C. Moreover, first‐principles calculations and ab initio molecular dynamics simulations from the atomic scale further elucidate the impressive electrocatalytic activity and stability and reveal that Fe and Ni in exsolved nanoparticles enhance the electrocatalytic activity, and the strong binding of Co and Cu to the parent improves the interfacial stability.

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Sr₂Fe_1.4Mn_0.1Mo_0.5O_6−δ perovskite cathode for highly efficient CO₂ electrolysis

Abstract: An all-ceramic cermet cathode based on perovskite-oxide Sr2Fe1.4Mn0.1Mo0.5O6−δ and samaria-doped ceria shows unprecedented performance in solid oxide electrolysis of pure CO2.

Cited by 76 publications

References 45 publications

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

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

Ca/Cu Co‐doped SmFeO₃ as a Fuel Electrode Material for Direct Electrolysis of CO₂ in SOECs▴

In Situ Exsolution of Quaternary Alloy Nanoparticles for CO₂‐CO Mutual Conversion Using Reversible Solid Oxide Cells

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Sr2Fe1.4Mn0.1Mo0.5O6−δ perovskite cathode for highly efficient CO2 electrolysis

Abstract: An all-ceramic cermet cathode based on perovskite-oxide Sr2Fe1.4Mn0.1Mo0.5O6−δ and samaria-doped ceria shows unprecedented performance in solid oxide electrolysis of pure CO2.

Cited by 76 publications

References 45 publications

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

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

Ca/Cu Co‐doped SmFeO3 as a Fuel Electrode Material for Direct Electrolysis of CO2 in SOECs▴

In Situ Exsolution of Quaternary Alloy Nanoparticles for CO2‐CO Mutual Conversion Using Reversible Solid Oxide Cells

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Product

Resources

About

Sr₂Fe_1.4Mn_0.1Mo_0.5O_6−δ perovskite cathode for highly efficient CO₂ electrolysis

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

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

Ca/Cu Co‐doped SmFeO₃ as a Fuel Electrode Material for Direct Electrolysis of CO₂ in SOECs▴

In Situ Exsolution of Quaternary Alloy Nanoparticles for CO₂‐CO Mutual Conversion Using Reversible Solid Oxide Cells