Fundamental Understanding and Applications of Protonic Y‐ and Yb‐Coped Ba(Ce,Zr)O₃ Perovskites: State‐of‐the‐Art and Perspectives

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(47)

Published: Nov. 1, 2023

Abstract Proton‐conducting oxide materials are interesting objects from both fundamental and applied viewpoints due to the origination of protonic defects in a crystal structure as result their interaction with hydrogen‐containing atmospheres at elevated temperatures. The high mobility such temperatures between 400 700 °C leads superior ionic conductivity. As result, some perovskite‐type proton‐conducting oxides have been proposed electrolytes for solid fuel electrolysis cells. Barium cerate (BaCeO 3 ), barium zirconate (BaZrO cerate‐zirconates –BaZrO ) widely studied terms parent phases electrolytes. Among them, Y Yb co‐doped Ba(Ce,Zr)O can be identified one most promising systems so far. This review discloses key functional properties explains increased attention researchers this system.

Language: Английский

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Why do BaCo0.4Fe0.4Zr0.1Y0.1O3–δ-derived complex oxides become one of the most promising electrodes for protonic ceramic electrochemical cells? An explanatory review

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151615 - 151615

Published: April 24, 2024

Language: Английский

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Fluorine-insertion in solid oxide materials for improving their ionic transport and stability. A brief review

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 50, P. 104 - 123

Published: Aug. 22, 2023

Language: Английский

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Chemistry and electrochemistry of CeO₂-based interlayers: Prolonging the lifetime of solid oxide fuel and electrolysis cells

Russian Chemical Reviews, Journal Year: 2023, Volume and Issue: 92(10), P. RCR5097 - RCR5097

Published: Aug. 28, 2023

Research and development of solid oxide fuel cells (SOFCs) electrolysis (SOECs) are currently paramount importance in terms realizing hydrogen energy carbon emission reduction programs, which many countries have committed to. Although, there outstanding results the fabrication characterization SOFCs SOECs with promising oxygen-ionic proton-conducting electrolytes, conventional zirconia electrolytes still widely used not only a lab-scale setup, but also form enlarged stacks, experimental operation latter during 10 000–100 000 h. To ensure good performance stability microstructural integrity such multilayered cells, special attention should be paid to chemical activity functional materials toward their interaction each other, especially long-term focus. The literature analysis has shown that undesirable processes occur classical pairs strontium-containing electrodes, including element segregation interdiffusion, insulating phase formation, microscopic defect appearance, delamination. Some these can efficiently eliminated by using so-called interlayers designed from doped ceria materials. Due numerous beneficial functions, several synonymous names: blocking, barrier, buffer, or protecting layers. Herein, we review recent progress achievements fundamental applied researches dealing impact on chemistry electrochemistry based as well analogs. <br> bibliography includes 405 references.

Language: Английский

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Constraints in sustainable electrode materials development for solid oxide fuel cell: A brief review

Materials Science for Energy Technologies, Journal Year: 2024, Volume and Issue: 8, P. 32 - 43

Published: July 14, 2024

Solid oxide fuel cells (SOFCs) are efficient electrochemical energy device that converts the chemical of fuels directly into electricity. It has a high power and density sustainable source energy. The electrode (cathode anode) materials essential for operation SOFCs. Several have been studied in last two decades, mainly perovskite materials. investigated resulted improved performance SOFCs, increased commercial viability, reduced operational costs. However, sustainability most material compositions (heteroatoms) used as electrodes SOFCs never investigated. present study examines recent progress, challenges, constraints associated with development from perspective. Heteroatoms majorly employed doping materials' long-term availability on earth's surface was established. also provides an overview current state symmetrical solid cells. This is intended to address complexities different anode cathode.

Language: Английский

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Balancing the triple conductivity of zinc-doped cathodes for proton-conducting solid oxide fuel cells

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(29), P. 18175 - 18181

Published: Jan. 1, 2024

The Zn-doped BCF36 cathode boosts proton conductivity, lowers hydration energy and achieves a peak power density of 998.6 mW cm −2 at 600 °C with polarization resistance 0.151 Ω 2 for single cell the BCFZ10 cathode.

Language: Английский

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Overview of Approaches to Increase the Electrochemical Activity of Conventional Perovskite Air Electrodes

Materials, Journal Year: 2023, Volume and Issue: 16(14), P. 4967 - 4967

Published: July 12, 2023

The progressive research trends in the development of low-cost, commercially competitive solid oxide fuel cells with reduced operating temperatures are closely linked to search for new functional materials as well technologies improve properties established traditionally used high-temperature devices. Significant efforts being made air electrodes, which significantly contribute degradation cell performance due low oxygen reduction reaction kinetics at temperatures. present review summarizes basic information on methods electrochemical conventional electrodes perovskite structure, such lanthanum strontium manganite (LSM) and cobaltite ferrite (LSCF), make them suitable application second generation medium In addition, presented this may serve a background further implementation developed electrode modification involving novel, recently investigated materials.

Language: Английский

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An Nb-doped PrBa _0.8Ca _0.2Co ₂O ₆-based perovskite cathode with improved oxygen reduction reaction activity and stability for solid oxide fuel cells

Journal of Advanced Ceramics, Journal Year: 2024, Volume and Issue: 13(10), P. 1590 - 1599

Published: Aug. 15, 2024

Language: Английский

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Design of Mixed Ionic-Electronic Materials for Permselective Membranes and Solid Oxide Fuel Cells Based on Their Oxygen and Hydrogen Mobility

Membranes, Journal Year: 2023, Volume and Issue: 13(8), P. 698 - 698

Published: July 27, 2023

Oxygen and hydrogen mobility are among the important characteristics for operation of solid oxide fuel cells, permselective membranes many other electrochemical devices. This, along with characteristics, enables a high-power density in cells due to reducing electrolyte resistance enabling electrode processes not be limited by electrode-electrolyte-gas phase triple-phase boundary, as well providing high oxygen or permeation fluxes ambipolar conductivity. This work focuses on diffusion mixed ionic (oxide or/and protonic)–electronic conducting materials these devices, its role their performance. The main laws bulk surface exchange highlighted. Isotope techniques allow us study detail. Ionic transport properties conventional state-of-the-art including perovskites, Ruddlesden–Popper phases, fluorites, pyrochlores, composites, etc., reviewed.

Language: Английский

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Robust cobalt-free perovskite type electrospun nanofiber cathode for efficient electrochemical carbon dioxide reduction reaction

Journal of Power Sources, Journal Year: 2023, Volume and Issue: 587, P. 233705 - 233705

Published: Oct. 7, 2023

Language: Английский

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