Effect of Sr substitution on the room temperature electrical properties of La1-xSrxFeO3 nano-crystalline materials

Kafa, C. A.; Triyono, D.; Laysandra, H.

doi:10.1063/1.4991146

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…Except for SF, which shows the largest particle size, for other compositions, the particle size appears to decrease with an increase in Sr content, in agreement with the previous report. 38 This trend is additionally supported by the enlargement of the BET specific surface area with an increase in the Sr content from LF to LSF-0.8 (Table S2). SF showed the lowest surface area of 2.0 m 2 g −1 among the five compositions because of its highest sinterability.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Submicron particles are observed together forming several agglomerates. Except for SF, which shows the largest particle size, for other compositions, the particle size appears to decrease with an increase in Sr content, in agreement with the previous report . This trend is additionally supported by the enlargement of the BET specific surface area with an increase in the Sr content from LF to LSF-0.8 (Table S2).…”

Section: Resultsmentioning

confidence: 99%

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Systematic Study of Oxygen Evolution Activity and Stability on La_1–xSr_xFeO_3−δ Perovskite Electrocatalysts in Alkaline Media

She

Tang

et al. 2018

ACS Appl. Mater. Interfaces

201

150

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Perovskite oxide is an attractive low-cost alternative catalyst for oxygen evolution reaction (OER) relative to the precious metal oxide-based electrocatalysts (IrO and RuO). In this work, a series of Sr-doped La-based perovskite oxide catalysts with compositions of LaSr FeO ( x = 0, 0.2, 0.5, 0.8, and 1) are synthesized and characterized. The OER-specific activities in alkaline solution increase in the order of LaFeO (LF), LaSrFeO (LSF-0.2), LaSrFeO (LSF-0.5), SrFeO (SF), and LaSrFeO (LSF-0.8). We establish a direct correlation between the enhancement in the specific activity and the amount of surface oxygen vacancies as well as the surface Fe oxidation states. The improved specific activity for LSF-0.8 is clearly linked to the optimum amount of surface oxygen vacancies and surface Fe oxidation states. We also find that the OER performance stability is a function of the crystal structure and the deviation in the surface La and/or Sr composition(s) from their bulk stoichiometric compositions. The cubic structure and lower deviation, as is the case for LSF-0.8, led to a higher OER performance stability. These surface performance relations provide a promising guideline for constructing efficient water oxidation.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Systematic Study of Oxygen Evolution Activity and Stability on La_1–xSr_xFeO_3−δ Perovskite Electrocatalysts in Alkaline Media

She

Tang

et al. 2018

ACS Appl. Mater. Interfaces

201

150

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Structural, morphological and dielectric analyses of La1 − xSrxFeO3 solid solutions

et al. 2021

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Structural, magnetic, and electrical characterization of Sr-substituted LaFeO3 perovskite synthesized via sucrose auto-combustion route

Gabal

Alsolami

Angari

et al. 2020

J Mater Sci: Mater Electron

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Effect of Sr substitution on the room temperature electrical properties of La1-xSrxFeO3 nano-crystalline materials

Cited by 6 publications

References 8 publications

Systematic Study of Oxygen Evolution Activity and Stability on La_1–xSr_xFeO_3−δ Perovskite Electrocatalysts in Alkaline Media

Systematic Study of Oxygen Evolution Activity and Stability on La_1–xSr_xFeO_3−δ Perovskite Electrocatalysts in Alkaline Media

Structural, morphological and dielectric analyses of La1 − xSrxFeO3 solid solutions

Structural, magnetic, and electrical characterization of Sr-substituted LaFeO3 perovskite synthesized via sucrose auto-combustion route

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Effect of Sr substitution on the room temperature electrical properties of La1-xSrxFeO3 nano-crystalline materials

Cited by 6 publications

References 8 publications

Systematic Study of Oxygen Evolution Activity and Stability on La1–xSrxFeO3−δ Perovskite Electrocatalysts in Alkaline Media

Systematic Study of Oxygen Evolution Activity and Stability on La1–xSrxFeO3−δ Perovskite Electrocatalysts in Alkaline Media

Structural, morphological and dielectric analyses of La1 − xSrxFeO3 solid solutions

Structural, magnetic, and electrical characterization of Sr-substituted LaFeO3 perovskite synthesized via sucrose auto-combustion route

Contact Info

Product

Resources

About

Systematic Study of Oxygen Evolution Activity and Stability on La_1–xSr_xFeO_3−δ Perovskite Electrocatalysts in Alkaline Media

Systematic Study of Oxygen Evolution Activity and Stability on La_1–xSr_xFeO_3−δ Perovskite Electrocatalysts in Alkaline Media