Robust Ni-doped Ruddlesden-popper (La,Sr)Fe1-xNixO4+δ oxide as solid oxide cells fuel electrode for CO2 electrolysis

Liu, Changyang; Sun, Chao; Bian, Liuzhen; Wang, Yu; Qi, Ji; Li, Shuting; Gao, Jianquan; Peng, Jun; An, Shengli

doi:10.1016/j.ijhydene.2022.01.054

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…They found that LaNi 0.8 Fe 0.2 O 3 in orthorhombic phase has a large catalytic active area, excellent electrode conductivity and fast oxygen evolution reaction rate. In support to all previous reports, very recently, C Liu et al [32] have reported Ni doped LaFeO 3 with increased electrical conductivity to be used in as cathode of fuel cell. E Konysheva et al [33] studied neutron diffraction analysis on LaFe 1−x Ni x O 3 samples and found the effect of temperature on the doped structures.…”

Section: Introductionsupporting

confidence: 80%

Synergistically investigating the structural, magnetic, opto-electronic, and thermo-elastic traits of LaFe_1−xNi_xO₃ for novel electronic applications

Tariq¹,

Alrashdi²,

Ahmed³

et al. 2023

Phys. Scr.

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Electronic materials have gained massive interest in the past few years. The fundamental reason is the growing industrial demands and efforts to discover novel low cost-effective materials. In this work, the influence of Ni substitution on LaFeO3 is presented in detail using the Kohn-Sham scheme of density functional theory. All studied compounds have shown good agreement with experimentally reported results. However, mechanical and optical results are reported for the first time for doped structures. The structural stability has been extensively checked through several stability criteria, such as, structural optimizations, elastic stability tests, and enthalpy of formation. Furthermore, the electronic and optical properties suggest highly conducting and reflecting phases of the studied compounds, respectively. The analysis of magnetic properties shows a decrease in magnetic moment value with an increase in Ni content due to Fe-Ni degeneracy. Mechanical analysis such as moduli of elasticity B, G, and Y has shown an increase in strength of 75% Ni substituted LaFeO3 by 24.5, 79.7, and 59.2%, respectively. Internal strain factor indicates majority bond flexibility, implying a potential application in flexible electronic devices.

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Section: Introductionsupporting

confidence: 80%

Synergistically investigating the structural, magnetic, opto-electronic, and thermo-elastic traits of LaFe_1−xNi_xO₃ for novel electronic applications

Tariq¹,

Alrashdi²,

Ahmed³

et al. 2023

Phys. Scr.

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show abstract

“…They developed them using sol-gel procedure and found that in its orthorhombic phase, LaNi 0.8 Fe 0.2 O 3 possesses a great catalytic active area, fast oxygen evolution reaction rate, and outstanding electrode conductivity. A very recent study conducted by Liu et al 24 supports previous reported investigations.…”

supporting

confidence: 78%

DFT insights into LaFeO₃ with Mn substitution: A promising path to energy‐efficient magneto‐optical applications

Tariq,

Alrashdi,

Al Bahir

et al. 2023

J Comput Chem

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In recent years, the demand for electronic materials has significantly increased, driven by industrial needs and the pursuit of cost‐efficient alternatives. This comprehensive study investigates the effects of Mn substitution on LaFeO3 through the implementation of the GGA approach in density functional theory. The research findings demonstrate remarkable consistency with the experimental outcomes reported in the existing literature pertaining to the studied compounds. However, this study unveils novel insights into the mechanical and optical characteristics of the doped structures, which have not been previously reported. The structural stability is rigorously examined through multiple stability criteria, encompassing structural optimization, tests of elastic stability, and enthalpy of formation calculations. Furthermore, the electronic and optical properties of the compounds exhibit exceptional improvements in conductivity and reflectivity as a result of the doping process. The band structure analysis reveals the presence of a Moss‐Burstein shift. Investigation of the magnetic properties indicates an increase in the magnetic moment value due to the Fe‐Mn degeneracy resulting from increased Mn content. Mechanical analysis of the elastic moduli B, G, and Y demonstrates an enhanced strength and metal‐like conductivity, attributed to the induced anharmonicity. Moreover, the internal strain factor suggests a higher degree of bond flexibility, implying potential applications of these compounds in flexible electronics.

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“…Alternatively, perovskite-related oxides including single perovskites, double perovskites, and Ruddlesden–Popper-type layered perovskites have attracted considerable research attention due to their high mixed ionic/electronic conductivity, good redox stability, good coking resistance, etc., and have been extensively studied as SOEC cathode for direct CO 2 electrolysis. For example, La 0.75 Sr 0.25 Cr 0.5 Mn 0.5 O 3−δ (LSCM), (La,Sr)(Fe,Ti)O 3 , − Sr 2 Fe 1.5 Mo 0.5 O 6‑δ , , and (La,Sr)FeO 4+δ , have been investigated as cathode materials for CO 2 electrolysis. However, those cathode materials still show insufficient electrochemical performance compared to the Ni-based cathodes.…”

Section: Introductionmentioning

confidence: 99%

Unlocking the Potential of A-Site Ca-Doped LaCo_0.2Fe_0.8O_3−δ: A Redox-Stable Cathode Material Enabling High Current Density in Direct CO₂ Electrolysis

Li,

Wang,

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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Massive carbon dioxide (CO2) emission from recent human industrialization has affected the global ecosystem and raised great concern for environmental sustainability. The solid oxide electrolysis cell (SOEC) is a promising energy conversion device capable of efficiently converting CO2 into valuable chemicals using renewable energy sources. However, Sr-containing cathode materials face the challenge of Sr carbonation during CO2 electrolysis, which greatly affects the energy conversion efficiency and long-term stability. Thus, A-site Ca-doped La1–x Ca x Co0.2Fe0.8O3−δ (0.2 ≤ x ≤ 0.6) oxides are developed for direct CO2 conversion to carbon monoxide (CO) in an intermediate-temperature SOEC (IT-SOEC). With a polarization resistance as low as 0.18 Ω cm2 in pure CO2 atmosphere, a remarkable current density of 2.24 A cm–2 was achieved at 1.5 V with La0.6Ca0.4Co0.2Fe0.8O3−δ (LCCF64) as the cathode in La0.8Sr0.2Ga0.83Mg0.17O3−δ (LSGM) electrolyte (300 μm) supported electrolysis cells using La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) as the air electrode at 800 °C. Furthermore, symmetrical cells with LCCF64 as the electrodes also show promising electrolysis performance of 1.78 A cm–2 at 1.5 V at 800 °C. In addition, stable cell performance has been achieved on direct CO2 electrolysis at an applied constant current of 0.5 A cm–2 at 800 °C. The easily removable carbonate intermediate produced during direct CO2 electrolysis makes LCCF64 a promising regenerable cathode. The outstanding electrocatalytic performance of the LCCF64 cathode is ascribed to the highly active and stable metal/perovskite interfaces that resulted from the in situ exsolved Co/CoFe nanoparticles and the additional oxygen vacancies originated from the Ca2Fe2O5 phase synergistically providing active sites for CO2 adsorption and electrolysis. This study offers a novel approach to design catalysts with high performance for direct CO2 electrolysis.

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Robust Ni-doped Ruddlesden-popper (La,Sr)Fe1-xNixO4+δ oxide as solid oxide cells fuel electrode for CO2 electrolysis

Cited by 9 publications

References 29 publications

Synergistically investigating the structural, magnetic, opto-electronic, and thermo-elastic traits of LaFe_1−xNi_xO₃ for novel electronic applications

Synergistically investigating the structural, magnetic, opto-electronic, and thermo-elastic traits of LaFe_1−xNi_xO₃ for novel electronic applications

DFT insights into LaFeO₃ with Mn substitution: A promising path to energy‐efficient magneto‐optical applications

Unlocking the Potential of A-Site Ca-Doped LaCo_0.2Fe_0.8O_3−δ: A Redox-Stable Cathode Material Enabling High Current Density in Direct CO₂ Electrolysis

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Robust Ni-doped Ruddlesden-popper (La,Sr)Fe1-xNixO4+δ oxide as solid oxide cells fuel electrode for CO2 electrolysis

Cited by 9 publications

References 29 publications

Synergistically investigating the structural, magnetic, opto-electronic, and thermo-elastic traits of LaFe1−xNixO3 for novel electronic applications

Synergistically investigating the structural, magnetic, opto-electronic, and thermo-elastic traits of LaFe1−xNixO3 for novel electronic applications

DFT insights into LaFeO3 with Mn substitution: A promising path to energy‐efficient magneto‐optical applications

Unlocking the Potential of A-Site Ca-Doped LaCo0.2Fe0.8O3−δ: A Redox-Stable Cathode Material Enabling High Current Density in Direct CO2 Electrolysis

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Synergistically investigating the structural, magnetic, opto-electronic, and thermo-elastic traits of LaFe_1−xNi_xO₃ for novel electronic applications

Synergistically investigating the structural, magnetic, opto-electronic, and thermo-elastic traits of LaFe_1−xNi_xO₃ for novel electronic applications

DFT insights into LaFeO₃ with Mn substitution: A promising path to energy‐efficient magneto‐optical applications

Unlocking the Potential of A-Site Ca-Doped LaCo_0.2Fe_0.8O_3−δ: A Redox-Stable Cathode Material Enabling High Current Density in Direct CO₂ Electrolysis