Influence of pH on the structural, magnetic and optical properties of SrFe2O4 nanoparticles

Ghahfarokhi, S. E. Mousavi; Shobegar, E. Mohammadzadeh

doi:10.1016/j.jmrt.2020.08.063

Cited by 29 publications

(8 citation statements)

References 45 publications

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“…65 Similarly, the chemical composition, the calcination temperature, the route of fabrication, the magneto-crystalline anisotropy, the grain particle size, and the pH of fabrication might have been influencing the hysteresis loops of the HFs. 53,66 As seen in Table 1, the values of M s and M r are significantly higher in SMHF-P and SMHF-L compared to SMHF-C. Therefore, the value of H c in SMHF-L would be greater than that in both SMHF-P and SMHF-C.…”

Section: Njc Papermentioning

confidence: 94%

Green synthesis of M-type manganese-substituted strontium hexaferrite SrMn_xFe_12−xO₁₉ nanoparticles with intrinsic antibacterial activity against human pathogenic bacteria

Hamarawf,

Tofiq,

Omer

2023

New J. Chem.

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Section: Njc Papermentioning

confidence: 94%

Green synthesis of M-type manganese-substituted strontium hexaferrite SrMn_xFe_12−xO₁₉ nanoparticles with intrinsic antibacterial activity against human pathogenic bacteria

Hamarawf,

Tofiq,

Omer

2023

New J. Chem.

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“…Furthermore, to explore the correlation between morphology, defect concentration, transport phenomena, and lithium storage perfor-mance, CaFe 2 O 4 nanofibers (Fig. 5(e)) and nanoparticles were prepared by electrospinning and urea combustion methods, respectively [85] . The oxygen defects in CaFe 2 O 4 nanofibers (Fig.…”

Section: Alkaline Earth Metal Ferritesmentioning

confidence: 99%

Section: Alkaline Earth Metal Ferritesmentioning

confidence: 99%

Research progress of alkaline earth metal iron-based oxides as anodes for lithium-ion batteries

Ye,

Hao,

Zeng

et al. 2024

J. Semicond.

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Anode materials are an essential part of lithium-ion batteries (LIBs), which determine the performance and safety of LIBs. Currently, graphite, as the anode material of commercial LIBs, is limited by its low theoretical capacity of 372 mA·h·g−1, thus hindering further development toward high-capacity and large-scale applications. Alkaline earth metal iron-based oxides are considered a promising candidate to replace graphite because of their low preparation cost, good thermal stability, superior stability, and high electrochemical performance. Nonetheless, many issues and challenges remain to be addressed. Herein, we systematically summarize the research progress of alkaline earth metal iron-based oxides as LIB anodes. Meanwhile, the material and structural properties, synthesis methods, electrochemical reaction mechanisms, and improvement strategies are introduced. Finally, existing challenges and future research directions are discussed to accelerate their practical application in commercial LIBs.

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“…420), (520), and (440), respectively, which correspond to the hexagonal crystal structure of SrFe 2 O 4. 33 Additionally, powder X-ray diffraction analysis of g-C 3 N 4 and the SrFe 2 O 4 @g-C 3 N 4 nanocomposite was performed, as seen in Figure 2b,c, respectively. The prominent peak in Figure 2b at a 2θ value of 27.05°corresponds to the…”

Section: Characterizationmentioning

confidence: 99%

Development of Graphitic Carbon Nitride-Encapsulated SrFe₂O₄ Spinel Nanocomposite Electrode for Enhancing Supercapacitor and Oxygen Evolution Applications

Kuppusamy,

Selvakumaran,

Lakshmanan

et al. 2024

Energy Fuels

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In the past few years, there has been a notable upswing in the excitement surrounding bifunctional materials, primarily due to their versatility in accommodating energy storage and conversion needs. One class of materials that garnered considerable attention is strontium ferrite nanoparticles (NPs), which are known for their remarkable electrochemical properties stemming from their exceptional physical and chemical characteristics. In this study, we have synthesized a novel, cost-effective, and highly efficient composite electrode designed for dual functionality in supercapacitor (SC) and oxygen evolution reaction (OER) applications in alkaline environments. Herein, we prepared SrFe 2 O 4 @g-C 3 N 4 composite through a coprecipitation and pyrolysis method, resulting in featuring a porous g-C 3 N 4 matrix and strontium (Sr) spinel structure. The composite materials were thoroughly characterized using techniques such as powder Xray diffraction (XRD), energy-dispersive spectroscopy (EDS), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy. The SrFe 2 O 4 @g-C 3 N 4 electrode exhibited outstanding pseudocapacitive behavior and delivered a specific capacitance of 1055 F/g at a current density of 1 A/g. Remarkably, it displayed a capacitance retention of 93% even after 5000 galvanostatic charge−discharge (GCD) cycles. Furthermore, in comparative assessments with bare SrFe 2 O 4 or g-C 3 N 4 electrodes, the SrFe 2 O 4 @g-C 3 N 4 composite electrode displayed superior and stable electrocatalytic performance. It required minimal overpotentials (only 170 mV) to achieve a current density of 10 mA cm −2 during the OER. These results emphasize the substantial potential of Sr-based nanocomposites as auspicious materials for applications in supercapacitors and as stable electrocatalysts.

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Influence of pH on the structural, magnetic and optical properties of SrFe2O4 nanoparticles

Cited by 29 publications

References 45 publications

Green synthesis of M-type manganese-substituted strontium hexaferrite SrMn_xFe_12−xO₁₉ nanoparticles with intrinsic antibacterial activity against human pathogenic bacteria

Green synthesis of M-type manganese-substituted strontium hexaferrite SrMn_xFe_12−xO₁₉ nanoparticles with intrinsic antibacterial activity against human pathogenic bacteria

Research progress of alkaline earth metal iron-based oxides as anodes for lithium-ion batteries

Development of Graphitic Carbon Nitride-Encapsulated SrFe₂O₄ Spinel Nanocomposite Electrode for Enhancing Supercapacitor and Oxygen Evolution Applications

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Influence of pH on the structural, magnetic and optical properties of SrFe2O4 nanoparticles

Cited by 29 publications

References 45 publications

Green synthesis of M-type manganese-substituted strontium hexaferrite SrMnxFe12−xO19 nanoparticles with intrinsic antibacterial activity against human pathogenic bacteria

Green synthesis of M-type manganese-substituted strontium hexaferrite SrMnxFe12−xO19 nanoparticles with intrinsic antibacterial activity against human pathogenic bacteria

Research progress of alkaline earth metal iron-based oxides as anodes for lithium-ion batteries

Development of Graphitic Carbon Nitride-Encapsulated SrFe2O4 Spinel Nanocomposite Electrode for Enhancing Supercapacitor and Oxygen Evolution Applications

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Product

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Green synthesis of M-type manganese-substituted strontium hexaferrite SrMn_xFe_12−xO₁₉ nanoparticles with intrinsic antibacterial activity against human pathogenic bacteria

Green synthesis of M-type manganese-substituted strontium hexaferrite SrMn_xFe_12−xO₁₉ nanoparticles with intrinsic antibacterial activity against human pathogenic bacteria

Development of Graphitic Carbon Nitride-Encapsulated SrFe₂O₄ Spinel Nanocomposite Electrode for Enhancing Supercapacitor and Oxygen Evolution Applications