In situ exsolution of ternary alloy nanoparticles from perovskite oxides to realize enhanced oxygen evolution reactivity

Chen, Tianyi; Sun, Siwen; He, Yan; Leng, Haiyan; Sun, Chenghua; Wu, Chengzhang

doi:10.1016/j.jallcom.2023.170974

Cited by 4 publications

(2 citation statements)

References 57 publications

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“…Most recently, another work has reported exsolution of FeCoNi from Sr 0.9 Co 0.5 Fe 0.35 Ni 0.15 O 3− δ to improve the electrocatalytic performance for oxygen evolution reaction (OER), with satisfactory results. 81…”

Section: New Trends In Nanoparticle Exsolutionmentioning

confidence: 99%

New trends in nanoparticle exsolution

Carrillo,

López-García,

Delgado-Galicia

et al. 2024

Chem. Commun.

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Section: New Trends In Nanoparticle Exsolutionmentioning

confidence: 99%

New trends in nanoparticle exsolution

Carrillo,

López-García,

Delgado-Galicia

et al. 2024

Chem. Commun.

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“…The size of the active component is believed to significantly impact on crucial properties, including its durability, catalytic activity and selectivity. Moreover, socketed nanoparticles possess a remarkable ability to resist agglomeration, suggesting that the strong resistance to the undesirable clustering or coalescence of nanoparticles [ 117 ]. Han et al [ 115 ] introduced that the exsolved Ni particles exhibited significantly smaller surface diffusion coefficients (4.9 × 10 –23 –8.1 × 10 –23 m 2 s −1 at 900 °C) compared to conventionally deposited particles (10 –8 –10 –12 m 2 s −1 at 900–1000 °C).…”

Section: Unique Properties Of Exsolution Catalystsmentioning

confidence: 99%

Nanoparticle Exsolution on Perovskite Oxides: Insights into Mechanism, Characteristics and Novel Strategies

Kim,

Jeong,

Won

et al. 2023

Nano-Micro Lett.

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Supported nanoparticles have attracted considerable attention as a promising catalyst for achieving unique properties in numerous applications, including fuel cells, chemical conversion, and batteries. Nanocatalysts demonstrate high activity by expanding the number of active sites, but they also intensify deactivation issues, such as agglomeration and poisoning, simultaneously. Exsolution for bottom-up synthesis of supported nanoparticles has emerged as a breakthrough technique to overcome limitations associated with conventional nanomaterials. Nanoparticles are uniformly exsolved from perovskite oxide supports and socketed into the oxide support by a one-step reduction process. Their uniformity and stability, resulting from the socketed structure, play a crucial role in the development of novel nanocatalysts. Recently, tremendous research efforts have been dedicated to further controlling exsolution particles. To effectively address exsolution at a more precise level, understanding the underlying mechanism is essential. This review presents a comprehensive overview of the exsolution mechanism, with a focus on its driving force, processes, properties, and synergetic strategies, as well as new pathways for optimizing nanocatalysts in diverse applications.

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Perovskite oxides as electrocatalysts for water electrolysis: From crystalline to amorphous

Sun,

Xu,

Chen

et al. 2024

Carbon Energy

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Crystalline perovskite oxides are regarded as promising electrocatalysts for water electrolysis, particularly for anodic oxygen evolution reactions, owing to their low cost and high intrinsic activity. Perovskite oxides with noncrystalline or amorphous characteristics also exhibit promising electrocatalytic performance toward electrochemical water splitting. In this review, a fundamental understanding of the characteristics and advantages of crystalline, noncrystalline, and amorphous perovskite oxides is presented. Subsequently, recent progress in the development of advanced electrocatalysts for water electrolysis by engineering and breaking the crystallinity of perovskite oxides is reviewed, with a special focus on the underlying structure–activity relationships. Finally, the remaining challenges and unsolved issues are presented, and an outlook is briefly proposed for the future exploration of next‐generation water‐splitting electrocatalysts based on perovskite oxides.

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In situ exsolution of ternary alloy nanoparticles from perovskite oxides to realize enhanced oxygen evolution reactivity

Cited by 4 publications

References 57 publications

New trends in nanoparticle exsolution

New trends in nanoparticle exsolution

Nanoparticle Exsolution on Perovskite Oxides: Insights into Mechanism, Characteristics and Novel Strategies

Perovskite oxides as electrocatalysts for water electrolysis: From crystalline to amorphous

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