Tuning the morphology and photocatalytic activity of La0.7Ca0.3MnO3 nanorods via different mineralizer-assisted hydrothermal syntheses

Arabi, Abbasali; Fazli, Mostafa; Ehsani, M.H.

doi:10.1016/j.materresbull.2017.02.043

Cited by 30 publications

(6 citation statements)

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“…[ 30 ] The band gap energy ( E g ) as the distance between the valence band of electrons and the conduction band was calculated with the following equation. [ 44,45 ]

{(italicαhν)}^{2} = A ((), italichν - E_{g})

where in this equation α is as the absorption coefficient, hυ the photon energy, and A the constant dependent on the effective masses of the electron, the hole, and the material refractive index. Results show which the band gaps of the nanostructures due to the quantum confinement effects are higher than the bulk structures.…”

Section: Resultsmentioning

confidence: 99%

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One‐step ultrasonic production of the chitosan/lactose/g‐C₃N₄ nanocomposites with lactose as a biological capping agent: Photocatalytic activity study

Karimi

Ranjbar

Mohadesi

2021

J Chinese Chemical Soc

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In this work, the basic and applied purpose was to synthesize and modify chitosan/lactose nanocomposites with g-C 3 N 4 structures using the ultrasonic-assisted electrospinning method. We evaluated effective photocatalytic of chitosan/lactose/g-C 3 N 4 nanocomposites to photodegrade methyl red, methyl orange, and methyl blue in different nanophotocatalyst concentration such as 0.1-1%g/L in pH 6.5. According to the experimental results, it was found that nanocomposites in different concentrations of g-C 3 N 4 had high potential in degradation of organic compounds. The lactose structures as a green capping agent and stabilizer modified chitosan surfaces to produce uniform particle size distribution. Different lactose concentrations like 0.1-0.5%wt/vol indicate a particle size range between 270 and 422 nm. The obtained as-synthesized nanomaterials were characterized by scanning electron microscope, energy-dispersive X-ray spectroscopy, transmission electron microscopy, X-ray diffraction (XRD), Fourier-transform

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“…[ 30 ] The band gap energy ( E g ) as the distance between the valence band of electrons and the conduction band was calculated with the following equation. [ 44,45 ]

{(italicαhν)}^{2} = A ((), italichν - E_{g})

Section: Resultsmentioning

confidence: 99%

“…[30] The band gap energy (E g ) as the distance between the valence band of electrons and the conduction band was calculated with the following equation. [44,45]…”

Section: Photocatalytic Activitymentioning

confidence: 99%

One‐step ultrasonic production of the chitosan/lactose/g‐C₃N₄ nanocomposites with lactose as a biological capping agent: Photocatalytic activity study

Karimi

Ranjbar

Mohadesi

2021

J Chinese Chemical Soc

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“…[103] Besides, the various dimension effects of rare earth-doped perovskite manganite oxide nanostructures (e.g., 0D, 1D, and 2D nanostructures) at the nanoscale will lead to a broader realm of exploration. [104,105] Recently, the RS switching behaviors driven by FC-MIT have shown potential for nonvolatile memory applications. [106] Among various families of those, Pr 1-x Ca x MnO 3 (PCMO), [47,107,108] La 1-x Sr x MnO 3 (LSMO), [99] and (La 1-x Pr x ) 0.67 Ca 0.33 MnO 3 [109] exhibit FC-MIT behaviors driven by voltage.…”

Section: Rare Earth-doped Perovskite Manganitesmentioning

confidence: 99%

Nanoelectronics Using Metal–Insulator Transition

Lee,

Kim,

Gim

et al. 2023

Advanced Materials

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Metal‐insulator transition coupled with an ultrafast, significant, and reversible resistive change in Mott insulators has attracted tremendous interest for investigation into next‐generation electronic and optoelectronic devices, as well as a fundamental understanding of condensed matter systems. Although the mechanism of MIT in Mott insulators is still controversial, great efforts have been made to understand and modulate MIT behavior for various electronic and optoelectronic applications. In this review, we highlight recent progress in the field of nanoelectronics utilizing MIT. We begin with a brief introduction to the physics of MIT and its underlying mechanisms. After discussing the MIT behaviors of various Mott insulators, we describe recent advances in the design and fabrication of nanoelectronics devices based on MIT, including memories, gas sensors, photodetectors, logic circuits, and artificial neural networks. Finally, we provide an outlook on the development and future applications of nanoelectronics utilizing MIT. This review can serve as an overview and a comprehensive understanding of the design of MIT‐based nanoelectronics for future electronic and optoelectronic devices.This article is protected by copyright. All rights reserved

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“…Moreover the manganites seem to be very promising MCE candidates, since their transition temperature and the magnitude of their ∆S M can be strongly modified by adjusting their chemical composition [25] and their microstructure according to the elaboration method and its conditions [26]. Many preparation methods are used to synthesize these manganites including solid state reaction [27], ball milling technique [28], sol-gel Pechini method [16], and hydrothermal method [29,30]. Likewise, pure and alkaline-earth-substituted lanthanum manganites have been synthesized by self-propagating high-temperature synthesis (SHS) that is a low-cost and attractive method for rapidly generating large amount of nanosized manganites perovskites [31].…”

Section: Introductionmentioning

confidence: 99%

“…and hydrothermal method [29,30]. Likewise, pure and alkaline-earth-substituted lanthanum manganites have been synthesized by self-propagating high-temperature synthesis (SHS) that is a low-cost and attractive method for rapidly generating large amount of nanosized manganites perovskites [31].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of La0.5Ca0.5−x□xMnO3 nanocrystalline manganites by sucrose assisted auto combustion route and study of their structural, magnetic and magnetocaloric properties

Moumen

Gagou

Chettab

et al. 2019

J Mater Sci: Mater Electron

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Perovskite manganite La 0.5 Ca 0.5-x □ x MnO 3 (LCMO) nanomaterials were elaborated using the sucrose modified auto combustion method. Rietveld refinements of the X-ray diffraction patterns of the crystalline structure confirm a single-phase orthorhombic state with Pbnm space group (No. 62). The Ca-vacancies were voluntarily created in the LCMO structure in order to study their influence on the magnetic behaviour in the system. The magnetic susceptibility was found to be highly enhanced in the sample with Ca-vacancies.Paramagnetic-to-ferromagnetic phase transition was evidenced in both samples around 254 K.This transition is, characterized by a drastic jump of the susceptibility in the sample with Cavacancies. The maximum of entropy change, observed for both compounds at magnetic field of 6T was 2.30 J kg -1 K -1 and 2.70 J kg -1 K -1 for the parent compound and the lacunar one respectively. The magnetocaloric adiabatic temperature change value calculated by indirect method was 5.6 K and 5.2 K for the non-lacunar and Ca-vacancy compound, respectively.The Ca-lacunar La 0.5 Ca 0.5-x □ x MnO 3 (x=0.05) reported in this work demonstrated overall enhancement of the magnetocaloric effect over the LCMO. The technique used to elaborate LCMO materials was beneficial to enhance the magnetocaloric effect and magnetic behaviour. Therefore, we conclude that this less costly environmentally friendly system can be considered as more advantageous candidate for magnetic refrigeration applications then the commonly Gd-based compounds.

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Tuning the morphology and photocatalytic activity of La0.7Ca0.3MnO3 nanorods via different mineralizer-assisted hydrothermal syntheses

Cited by 30 publications

References 43 publications

One‐step ultrasonic production of the chitosan/lactose/g‐C₃N₄ nanocomposites with lactose as a biological capping agent: Photocatalytic activity study

One‐step ultrasonic production of the chitosan/lactose/g‐C₃N₄ nanocomposites with lactose as a biological capping agent: Photocatalytic activity study

Nanoelectronics Using Metal–Insulator Transition

Synthesis of La0.5Ca0.5−x□xMnO3 nanocrystalline manganites by sucrose assisted auto combustion route and study of their structural, magnetic and magnetocaloric properties

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Tuning the morphology and photocatalytic activity of La0.7Ca0.3MnO3 nanorods via different mineralizer-assisted hydrothermal syntheses

Cited by 30 publications

References 43 publications

One‐step ultrasonic production of the chitosan/lactose/g‐C3N4 nanocomposites with lactose as a biological capping agent: Photocatalytic activity study

One‐step ultrasonic production of the chitosan/lactose/g‐C3N4 nanocomposites with lactose as a biological capping agent: Photocatalytic activity study

Nanoelectronics Using Metal–Insulator Transition

Synthesis of La0.5Ca0.5−x□xMnO3 nanocrystalline manganites by sucrose assisted auto combustion route and study of their structural, magnetic and magnetocaloric properties

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Product

Resources

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One‐step ultrasonic production of the chitosan/lactose/g‐C₃N₄ nanocomposites with lactose as a biological capping agent: Photocatalytic activity study

One‐step ultrasonic production of the chitosan/lactose/g‐C₃N₄ nanocomposites with lactose as a biological capping agent: Photocatalytic activity study