Study on Mössbauer and Magnetic Properties of Strontium—Neodymium Ferrimanganites Perovskite-Like Structure

Yousif, A. A.; Abdel-Latif, I.A.; Bouziane, K.; Sellai, A.; Gismelseed, A. M.; Al‐Omari, I. A.; Widatallah, H. M.; Al-Rawas, A. D.; Elzain, M. E.; Al‐Hajry, A.; Umar, Ahmad; Al-Harbi, Hamoud; Bouarissa, N.; Berriche, H.; El-Ghazaly, Mohammed

doi:10.1063/1.3638089

Cited by 14 publications

(3 citation statements)

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“…The rare earth manganites is formed in the well-known perovskites crystal structure where they does not crystalize only in the cubic crystal system but also in the form of the orthorhombic, rhombohedral, hexagonal or monoclinic depends on the synthesis procedure and heat process. The different crystal structure systems of rare earth manganites were reported in different work, where they could be formed as cubic, orthorhombic, rhombohedral, hexagonal or monoclinic 1,3,9–16 . In this work, the effect 48 .…”

Section: Resultsmentioning

confidence: 99%

Doping Strontium into Neodymium Manganites Nanocomposites for Enhanced Visible light Driven Photocatalysis

Abdel-Latif

Al-Hajji

Faisal

et al. 2019

Sci Rep

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Nd1−xSrxMnO3 nanocomposites perovskites were synthesized using sol gel method at different Sr content x = 0.3, 0.5, 0.7, and 0.9. The photocatalytic performance of the Nd1−xSrxMnO3 nanocomposites for photodegradation of Acridine orange dye (AO) was evaluated over visible light illumination. The single phase of orthorhombic pbnm was formed for x = 0.3 and 0.5; however monoclinic and orthorhombic were observed at x = 0.7 and 0.9. The Energy gap of the Nd1−xSrxMnO3 nanocomposites were estimated for all concentrations to be in the range of 3 ± 0.05 eV. The photocatalytic efficiency of Nd0.3Sr0.7MnO3 nanocomposite was 95% of the initial AO dye concentration within 3 h illumination time. The linear increase of the photodegradation rate was found in our samples as a result of the increase of Sr contents from 0.3 to 0.7wt %. Interestingly, the Nd0.3Sr0.7MnO3 content has the highest degradation rate of AO which is two times faster than undoped NdMnO3. This superior behavior in photocatalytic activity of Nd0.3Sr0.7MnO3 nanocomposite emerges from large surface area, structural anisotropy, and small particle size. These findings shows convincingly that the Nd1−xSrxMnO3 photocatalysts possess great promise for visible light driven photodegradation of AO dye.

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Section: Resultsmentioning

confidence: 99%

Doping Strontium into Neodymium Manganites Nanocomposites for Enhanced Visible light Driven Photocatalysis

Abdel-Latif

Al-Hajji

Faisal

et al. 2019

Sci Rep

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“…Nevertheless a lot of applications depend on the A and B cations in the ABO 3 perovskites, such as electrocatalysts for O 2 evolution [8][9][10], catalysts [11,12], photo/electro-catalysts for hydrogen production and pollutants degradation [13][14][15][16][17][18][19] and electrode material used in fuel cells [13]. The synthesis of perovskite materials could be done using different methods such as solid state reaction [24][25][26][27][28], chemical co-precipitation [29][30][31][32][33], sol-gel [34][35][36][37][38]. In each method there are parameters to play with in order to improve the properties of the required materials.…”

Section: Perovskites As Photocatalyticmentioning

confidence: 99%

Perovskite Strontium Doped Rare Earth Manganites Nanocomposites and Their Photocatalytic Performances

Abdel-Latif¹

2019

Nanocomposites - Recent Evolutions

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Studying catalysts in situ is an important topic that helps us to understand their surface structure and electronic states in operation. Three types of materials are used in the degradation of organic matter, which has applications in the environmental remediation and self-cleaning surfaces. The technique is widely known but still hampered by one significant limitation. The materials generally absorb ultra violet UV light but we need to develop active materials for visible light. Utilizing the sunlight efficiently for solar energy conversion is an important demand in the present time. The research on visible-light active photocatalysts attracted a lot of interest. The perovskite-like compounds are found to be active catalysts for the oxidation of carbon monoxide. In the present chapter, we will focus on the application of the nano-sized strontium doped neodymium manganites within perovskite like structure as photocatalysis and studying their photocatalytic performance.

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“…A simple form of ferrites is the spinel AB 2 O 4 of cubic structure [1][2][3][4][5][6][7][8][9]. The orthoferrites ABO 3 are another important form with an orthorhombic perovskite crystal system [10][11][12][13][14][15][16][17][18][19]. The third class of ferrites are garnets of form A 3 B 5 O 12 [20][21][22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Shielding Effectiveness of M-Type Ba-Co-Ti Hexagonal Ferrite and Composite Materials in Microwave X-Band Systems

Singh¹,

Narang²,

Abdel-Latif³

2021

Composite Materials

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Ferrites are a wide class of materials that are still a very rich field of scientific interest and under the scope of recent research. The polycrystalline Co 2+-T i 4+ substituted Ba hexagonal ferrite has been synthesized by the standard ceramic method. The vector network analyzer has been incorporated to measure different microwave parameters at X-band (8.2-12.4 GHz) frequencies. The microwave shielding effectiveness is evaluated by S-parameters for near field and AC conductivity as well as skin depth for far field. The doping of Co 2+ and Ti 4+ ions causes absorption in composite x = 0.5 to exhibit good shielding effectiveness and it exhibits large 20-dB bandwidth of 4.70 GHz in the near field and 3.60 GHz for far field respectively. The AC conductivity increases with frequency in composites x = 0.1, 0.3, and 0.5 and skin depth decreases with frequency in all composites. The shielding effectiveness, AC conductivity, and skin depth are correlated to each other.

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Study on Mössbauer and Magnetic Properties of Strontium—Neodymium Ferrimanganites Perovskite-Like Structure

Cited by 14 publications

References 0 publications

Doping Strontium into Neodymium Manganites Nanocomposites for Enhanced Visible light Driven Photocatalysis

Doping Strontium into Neodymium Manganites Nanocomposites for Enhanced Visible light Driven Photocatalysis

Perovskite Strontium Doped Rare Earth Manganites Nanocomposites and Their Photocatalytic Performances

Investigation of Shielding Effectiveness of M-Type Ba-Co-Ti Hexagonal Ferrite and Composite Materials in Microwave X-Band Systems

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