Development of intertwined nanostructured multi-phase air electrodes for efficient and durable reversible solid oxide cells

Chen, Zhiyi; Jiang, Li‐Yun; He, Shuai; Guan, Chengzhi; Zou, Yuanfeng; Yue, Zhongwei; Ai, Na; Shao, Yanqun; Chen, Kongfa

doi:10.1016/j.apcatb.2021.121056

Cited by 28 publications

(24 citation statements)

References 75 publications

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“…Finally, core–shell‐like intertwined nanostructures could be obtained. [ 84,116,117,120–122 ] As a successful demonstration, Shul et al. fabricated core/shell fiber structured BSCF‐Gd 0.1 Ce 0.9 O 1.95 (GDC) nanocomposite ( Figure ).…”

Section: Synthetic Methodologies Of Different Types Of Perovskite Oxi...mentioning

confidence: 99%

“…For example, Chen and coworkers found that by submitting PBCC seed powder in GDC precursor solution, in addition to GDC nanoparticles, BCO nanoparticles were also decorated on PBCC. [ 121 ] The etching of PBCC by the acidic nature of the GDC solution may be the reason for the growth of unexpected BCO.…”

Section: Synthetic Methodologies Of Different Types Of Perovskite Oxi...mentioning

confidence: 99%

“…And the other BCO nanoparticles, which appeared during the synthesis process, further boosted the surface change process of the OER/ORR process. The reversible cell with as‐prepared 40 wt% GDC/PBCC nanocomposite as an air electrode can achieve a PPD of 1.74 W cm −2 at 750 °C in fuel cell modes, and an electrolysis current density of 1.77 A cm −2 at 1.3 V with excellent durability for 200 h. [ 121 ]…”

Section: Enhanced Electrocatalytic Performances Ascribed To Perovskit...mentioning

confidence: 99%

“…Finally, core-shell-like intertwined nanostructures could be obtained. [84,116,117,[120][121][122] . Schematic of a spray pyrolysis apparatus for synthesizing SSC-SDC nanocomposites.…”

Section: Seed-mediated Synthesis Of Hybrid Core-shell Nanocompositesmentioning

confidence: 99%

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Toward Superb Perovskite Oxide Electrocatalysts: Engineering of Coupled Nanocomposites

Liu

Zhang

Zou

et al. 2022

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A significant issue that bedeviled the commercialization of renewable energy technologies, ranging from low‐temperature water electrolyzers to high‐temperature solid oxide cells, is the lack of high‐performance catalysts. Among various candidates that could tackle such a challenge, perovskite oxides are rising‐star materials because of their unique structural and compositional flexibility. However, single‐phase perovskite oxides are challenging to satisfy all the requirements of electrocatalysts concurrently for practical applications, such as high catalytic activity, excellent stability, good ionic and electronic conductivities, and superior chemical/thermo‐mechanical robustness. Impressively, perovskite oxides with coupled nanocomposites are emerging as a novel form offering multifunctionality due to their intrinsic features, including infinite interfaces with solid interaction, tunable compositions, flexible configurations, and maximum synergistic effects between assorted components. Considering this new configuration has attracted great attention owing to its promising performances in various energy‐related applications, this review timely summarizes the leading‐edge development of perovskite oxide‐based coupled nanocomposites. Their state‐of‐art synthetic strategies are surveyed and highlighted, their unique structural advantages are highlighted and illustrated through the typical oxygen reduction reaction and oxygen evolution reactions in both high and low‐temperature applications. Opinions on the current critical scientific issues and opportunities in this burgeoning research field are all provided.

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Section: Synthetic Methodologies Of Different Types Of Perovskite Oxi...mentioning

confidence: 99%

Section: Synthetic Methodologies Of Different Types Of Perovskite Oxi...mentioning

confidence: 99%

Section: Enhanced Electrocatalytic Performances Ascribed To Perovskit...mentioning

confidence: 99%

“…Finally, core-shell-like intertwined nanostructures could be obtained. [84,116,117,[120][121][122] . Schematic of a spray pyrolysis apparatus for synthesizing SSC-SDC nanocomposites.…”

Section: Seed-mediated Synthesis Of Hybrid Core-shell Nanocompositesmentioning

confidence: 99%

See 2 more Smart Citations

Toward Superb Perovskite Oxide Electrocatalysts: Engineering of Coupled Nanocomposites

Liu

Zhang

Zou

et al. 2022

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“…Most recently, we constructed a nanostructured multi-phase air electrode via a facile combination of GDC decorated PrBa 0.8 Ca 0.2 Co 2 O 5+δ (PBCC) and the direct assembly approach. 62 The highly flexible decoration process and the in situ formation of multi-phases led to the formation of intertwined core–shell type nanostructures with a strong interface structure (see Fig. 11).…”

Section: Nano-scale Fabrication Techniquesmentioning

confidence: 99%

A critical review of the nano-structured electrodes of solid oxide cells

Zou

Chen

et al. 2022

Chem. Commun.

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Entropy and Composition Regulations of Air Electrodes Enable Efficient Oxygen Reduction and Evolution Reactions for Reversible Solid Oxide Cells

Zhu,

Du,

et al. 2024

Advanced Energy Materials

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One of the urgent challenges for efficient energy storage/conversion devices is the poor electrocatalytic activity and reversible operation capability for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) of the air electrodes. Recently, tremendous efforts of high‐entropy air electrodes are devoted, yet the performance enhancement is often ascribed to the high‐entropy. Herein, the effects of the increase of configurational entropy and the selection of specifically doped elements are investigated on the electrochemical performance of the electrodes. These results suggest that the selection of doped elements may contribute more to enhancing the electrocatalytic activity and stability of air electrodes when compared with the increase of the configurational entropy. Accordingly, the optimized medium‐entropy Pr1/2Ba1/6Sr1/6Ca1/6CoO3‐δ (PBSCC) electrode shows superior electrocatalytic activity and stability for ORR and OER. A reversible solid oxide cell utilizing PBSCC demonstrates exceptional electrochemical performance, conveying a peak power density of 2.01 W cm−2 in the fuel cell mode and a current density of 1.40 A cm−2 in electrolysis mode (under 50% H2O humidified H2 at 1.3 V) at 750 °C, while maintaining excellent cyclable operation stability for over 115 h.

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Development of intertwined nanostructured multi-phase air electrodes for efficient and durable reversible solid oxide cells

Cited by 28 publications

References 75 publications

Toward Superb Perovskite Oxide Electrocatalysts: Engineering of Coupled Nanocomposites

Toward Superb Perovskite Oxide Electrocatalysts: Engineering of Coupled Nanocomposites

A critical review of the nano-structured electrodes of solid oxide cells

Entropy and Composition Regulations of Air Electrodes Enable Efficient Oxygen Reduction and Evolution Reactions for Reversible Solid Oxide Cells

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