NdBa1−xCo2O5+δ as cathode materials for IT-SOFC

Sun, Jialing; Liu, Xiaomei; Han, Fei; Zhu, Longgen; Bi, Hailin; Wang, Haopeng; Yu, Shenglong; Li, Pei

doi:10.1016/j.ssi.2015.12.023

Cited by 40 publications

(7 citation statements)

References 36 publications

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“…On the other hand, thermal expansion originates from the anharmonicity of the lattice vibrations and is dependent on the electrostatic attraction forces within the lattice. The concentrations of positive and negative charges and their distances within the lattice influence the electrostatic attraction forces [32,[37][38][39].…”

Section: Resultsmentioning

confidence: 99%

LaNi0.6Co0.4−xFexO3−δ as Air-Side Contact Material for La0.3Ca0.7Fe0.7Cr0.3O3−δ Reversible Solid Oxide Fuel Cell Electrodes

et al. 2022

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The goal of the current work was to identify an air-side-optimized contact material for La0.3Ca0.7Fe0.7Cr0.3O3−δ (LCFCr) electrodes and a Crofer22APU interconnect for use in reversible solid oxide fuel cells (RSOFCs). LaNi0.6Co0.4−xFexO3 (x = 0–0.3) perovskite-type oxides were investigated in this work. The partial substitution of Co by Fe decreased the thermal expansion coefficient values (TEC) closer to the values of the LCFCr and Crofer 22 APU interconnects. The oxides were synthesized using the glycine–nitrate method and were characterized using X-ray thermodiffraction and 4-probe DC electrical conductivity measurements. Based on the materials characterization results from the Fe-doped oxides investigated here, the LaNi0.6Co0.2Fe0.2O3−δ composition was selected as a good candidate for the contact material, as it exhibited an acceptable electrical conductivity value of 395 S·cm−1 at 800 °C in air and a TEC value of 14.98 × 10−6 K−1 (RT-900 °C).

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Section: Resultsmentioning

confidence: 99%

LaNi0.6Co0.4−xFexO3−δ as Air-Side Contact Material for La0.3Ca0.7Fe0.7Cr0.3O3−δ Reversible Solid Oxide Fuel Cell Electrodes

et al. 2022

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“…First, the oxygen vacancies of the SSC samples were measured by iodometric titration, 26,27 and then the oxygen vacancies were obtained using thermogravimetric (TG) analyzer. TG (METTLER TOLEDO-TGA/DSC 2) was used to measure the weight loss of powder at a heating rate of 10 C min À1 from 25 C to 800 C. Non-stoichiometry oxygen concentrations at different temperatures were calculated based on TG data.…”

Section: Methodsmentioning

confidence: 99%

A new strategy for improving the electrochemical performance of perovskite cathodes: pre-calcining the perovskite oxide precursor in a nitrogen atmosphere

Chen

Zhao

et al. 2021

Nanoscale Adv.

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“…The result was suggested that lower polarization resistance and release of lattice oxygen by the introduction of Ba deficiency. Among all the prepared samples, NB 0.96 CO oxide is more enough porosity and appropriate grain size, which is established as a potential cathodic material for IT-SOFCs technology [80].…”

Section: Nbco Cathode Systemsmentioning

confidence: 99%

Review of solid oxide fuel cell materials: cathode, anode, and electrolyte

2020

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There is a growing interest in solid oxide fuel cells (SOFCs) technology among the researchers a promising power generation with high energy efficiency, inflated fuel flexibility, and low environmental impact compared to conventional power generation systems. SOFCs are devices in which the chemical energy is directly converted into electrical energy with negligible emission. SOFCs have low pollution characteristics, high efficiency (~ 60%), and possess expanded fuel selection with little environmental effects. A single cell component of SOFCs is consisting an anode, cathode and an electrolyte which are stacked layer by layer to produce higher amount of power. The dense ceramic electrolyte transporting O2− ions and fills the space between the electrodes material. Redox reaction occurred at the electrodes side in the presence of fuels. The operating temperatures of SOFCs of 600–1200 °C which produced heat as a byproduct and fast electro-catalytic activity while using nonprecious metals. Many ceramic materials have been investigated for SOFCs electrolyte. Yttria-stabilized zirconia (YSZ) material was extensively used as dense electrolyte in SOFCs technology. In this review, the article presents; overview of the SOFCs devices and their related materials and mostly reviewed newly available reported.

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NdBa1−xCo2O5+δ as cathode materials for IT-SOFC

Cited by 40 publications

References 36 publications

LaNi0.6Co0.4−xFexO3−δ as Air-Side Contact Material for La0.3Ca0.7Fe0.7Cr0.3O3−δ Reversible Solid Oxide Fuel Cell Electrodes

LaNi0.6Co0.4−xFexO3−δ as Air-Side Contact Material for La0.3Ca0.7Fe0.7Cr0.3O3−δ Reversible Solid Oxide Fuel Cell Electrodes

A new strategy for improving the electrochemical performance of perovskite cathodes: pre-calcining the perovskite oxide precursor in a nitrogen atmosphere

Review of solid oxide fuel cell materials: cathode, anode, and electrolyte

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