Comprehensive study of functional properties and electrochemical performance of layered lanthanum nickelate substituted with rare-earth elements

Pikalova, E. Yu.; Kolchugin, A.А.; Tsvinkinberg, Viktor A.; Sereda, Vladimir V.; Khrustov, A. V.; Филонова, Е. А.

doi:10.1016/j.jpowsour.2023.233505

Cited by 5 publications

(2 citation statements)

References 95 publications

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“…The ionic radius of La 3+ is greater than that of Ni 2+ , which may cause lattice expansion when La is doped. 10 This expansion may alter the crystal structure of NiO, thus resulting in lattice strain. The introduction of La into the NiO lattice may cause changes in electronic configurations and consequently affect the material's properties, making it an effective dopant for tailoring NiO characteristics.…”

Section: Introductionmentioning

confidence: 99%

In situ fabrication of lanthanum-doped nickel oxide nanostructures using sol–gel for the degradation of rhodamine B

Ali,

Nazir,

Sandhu

et al. 2024

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

In situ fabrication of lanthanum-doped nickel oxide nanostructures using sol–gel for the degradation of rhodamine B

Ali,

Nazir,

Sandhu

et al. 2024

RSC Adv.

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“…Perovskite structure metal oxides and their derivatives are among the most researched cathode catalysts for SOFCs [4][5][6][7][8][9]. Their general formula can be represented as ABO 3 and A 2 BO 4 , where the A-site is primarily composed of lanthanides and/or alkali earth metals, and the B-site consists mainly of transition metal elements.…”

Section: Introductionmentioning

confidence: 99%

Promoting the Segregation of Sr2+ from the Perovskite Oxygen Catalyst La0.5Sr0.5Co3−δ via Quenching

Zheng,

Qian,

Pang

2023

Coatings

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The microstructure of the surface plays a crucial role in determining the efficacy of high-temperature oxygen catalysts. In this study, we conducted a comprehensive investigation into the impact of quenching on the crystal structure, surface topology, and oxygen-catalyzing capabilities of La0.5Sr0.5CoO3−δ (LSC). Our findings revealed that quenching can notably promote the segregation of SrO on the surface of the classical perovskite-based high-temperature oxygen catalyst LSC. This phenomenon can be attributed to the introduction of a significant number of chemical defects within the LSC bulk during the catalytic process, thereby endowing it with sufficient stress and electrostatic forces to drive Sr2+ toward the catalyst’s surface. This finding could simplify the removal of inert segregation layers on the surface of perovskite-based high-temperature oxygen catalysts. The electrochemical analysis results demonstrate that the quenching process can markedly improve the long-term operational stability of LSC but can bring a decrease in catalytic activity.

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Tailoring the defect structure and functional properties of Pr2NiO4+δ via partial Pr-substitution with lanthanum and neodymium

Tarutin,

Tarutina,

Filonova

2024

Ceramics International

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Comprehensive study of functional properties and electrochemical performance of layered lanthanum nickelate substituted with rare-earth elements

Cited by 5 publications

References 95 publications

In situ fabrication of lanthanum-doped nickel oxide nanostructures using sol–gel for the degradation of rhodamine B

In situ fabrication of lanthanum-doped nickel oxide nanostructures using sol–gel for the degradation of rhodamine B

Promoting the Segregation of Sr2+ from the Perovskite Oxygen Catalyst La0.5Sr0.5Co3−δ via Quenching

Tailoring the defect structure and functional properties of Pr2NiO4+δ via partial Pr-substitution with lanthanum and neodymium

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