Tuning the high-entropy perovskite as efficient and reliable electrocatalysts for oxygen evolution reaction

Wei, Ruixue; Fu, Gaoliang; Qi, Huafeng; Liu, Hewei

doi:10.1039/d4ra02680b

RSC Adv.

2024

DOI: 10.1039/d4ra02680b

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Tuning the high-entropy perovskite as efficient and reliable electrocatalysts for oxygen evolution reaction

Ruixue Wei,

Gaoliang Fu,

Huafeng Qi

et al.

Abstract: This work reports a high-entropy perovskite La0.3Sr0.7(CrMnFeCoNi)0.2O3 as a high-performance OER electrocatalyst. Sr doping induces the formation of higher-valence Cr6+, Mn4+, Fe4+, Co4+ and Ni3+ responsible for the excellent OER activity.

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Lanthanides in the water electrolysis

Gaur,

Sharma,

Enkhbayar

et al. 2024

EcoMat

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The most feasible technique for producing green hydrogen is water electrolysis. In recent years, there has been significant study conducted on the use of transition metal compounds as electrocatalysts for both anodes and cathodes. Peoples have attempted several strategies to improve the electrocatalytic activity of their original structure. One such technique involves introducing rare earth metals or creating heterostructures with compounds based on rare earth metals. The incorporation of rare earth metals significantly enhances the activity by many folds, while their compounds offer structural stability and the ability to manipulate the electronic properties of the original system. These factors have led to a recent boom in investigations on rare earth metal‐based electrocatalysts. There is currently a pressing demand for a review article that can provide a comprehensive overview of the scientific advancements and elucidate the mechanistic aspects of the impact of lanthanide doping. This review begins by explaining the electronic structure of the lanthanides. We next examine the mechanistic aspects, followed by recent advancements in lanthanide doping and heterostructure formation for water electrolysis applications. It is expected that this particular effort will benefit a broad audience and stimulate more research in this area of interest.image

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Lanthanides in the water electrolysis

Gaur,

Sharma,

Enkhbayar

et al. 2024

EcoMat

View full text Add to dashboard Cite

show abstract

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Tuning the high-entropy perovskite as efficient and reliable electrocatalysts for oxygen evolution reaction

Abstract: This work reports a high-entropy perovskite La0.3Sr0.7(CrMnFeCoNi)0.2O3 as a high-performance OER electrocatalyst. Sr doping induces the formation of higher-valence Cr6+, Mn4+, Fe4+, Co4+ and Ni3+ responsible for the excellent OER activity.

Cited by 1 publication

References 52 publications

Lanthanides in the water electrolysis

Lanthanides in the water electrolysis

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