Mechanosynthesis, Crystal Structure and Magnetic Characterization of Neodymium Orthoferrite

Vera-Serna, P.; Campos, Cecilio García; Jesús, F. Sánchez-De; Bolarín-Miró, A.M.; Lorán, José Antonio Juanico; Longwell, J. H.

doi:10.1590/1980-5373-mr-2015-0214

Cited by 24 publications

(4 citation statements)

References 18 publications

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“…[8][9][10][11]. Among these applications, the NdFeO 3 nanoscale materials, known as orthorhombically distorted perovskites [12,13], have significant potential applications in As (V) adsorption [8] and the fabrication of electrical and magneto-optic devices [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…Nanosized NdFeO 3 materials have been synthesized by various methods, including high-temperature ceramic fabrication [12,13,16,17], sol-gel [8,14], combustion [18], ultrasound, and co-precipitation techniques that includes octanoic acid as an organic surfactant [19,20]. However, it is challenging to create single-phase nano-crystalline NdFeO 3 particles without impurity phases such as Fe 3 O 4 , NdFe 2 O 4 , or Nd 3 Fe 5 O 12 , because many factors, including the heating temperature, retention time, pH, and stoichiometric ratio between the components, have to be well controlled [16,21].…”

Section: Introductionmentioning

confidence: 99%

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Simple Synthesis of NdFeO3 Nanoparticles By the Co-Precipitation Method Based on a Study of Thermal Behaviors of Fe (III) and Nd (III) Hydroxides

Nguyen

Pham

et al. 2020

Crystals

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In this study, a nanostructured NdFeO3 material was synthesized via a simple process of the hydrolysis of Nd (III) and Fe (III) cations in hot water with 5% NaOH as a precipitating agent. According to the results of the thermal behaviors of each hydroxide, either containing Fe (III) or Nd (III), the perovskite type of neodymium orthoferrite NdFeO3 was simply synthesized by annealing a mixture of Fe (III) and Nd (III) hydroxides at 750 °C. The nanostructured NdFeO3 was obtained in spherical granules with diameters of around 30 nm. The magnetic properties of the material were a coercive force (Hc) of 136.76 Oe, a remanent magnetization (Mr) of 0.68 emu·g–1, and a saturation magnetization (Ms) of 0.79 emu·g–1.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simple Synthesis of NdFeO3 Nanoparticles By the Co-Precipitation Method Based on a Study of Thermal Behaviors of Fe (III) and Nd (III) Hydroxides

Nguyen

Pham

et al. 2020

Crystals

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“…Moreover, several peaks of 2θ value at 18.26°, 38.84°, 39.24°, 44.94°, 55.24°, 56.34° and 60.79° positions may be related to the neodymium on boehmite nanoparticles, [74,75] which several of them were overlapped to 2θ reflection of boehmite nanoparticles. In addition, a broad peak of 2θ value from 17° to 26° is related to the amorphous SiO 2 [76] …”

Section: Resultsmentioning

confidence: 96%

A New Neodymium Complex on Boehmite Nanoparticles with 1,3‐Bis(pyridine‐3‐ylmethyl)thiourea as a Practical and Reusable Nanocatalyst for the Chemoselective Synthesis of Tetrazoles

2023

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In first part, boehmite nanoparticles were synthesized using aqueous solutions of NaOH and Al(NO 3 ) 3 ⋅ 9H 2 O. Then, it surface was modified by 3-choloropropyltrimtoxysilane, and further 1,3-bis(pyridin-3-ylmethyl)thiourea was anchored on the modified boehmite nanoparticles. In the final step, a neodymium complex was stabilized on its surface (Nd-bis(PYT)@boehmite NPs). The obtained nanoparticles were characterized by TGA, BET, ICP, EDS, WDX, SEM, and XRD techniques. In the second part, Nd-bis(PYT)@boehmite NPs were employed as an efficient, recoverable, and organic-inorganic hybrid nanocatalyst in the homo-selective synthesis of tetrazole compounds. The chemoselectivity of Nd-bis(PYT)@boehmite NPs was studied in the [3 + 2] cycloaddition of phthalonitrile and sodium azide (NaN 3 ). This catalyst is stable and has heterogeneous nature therefore it can be recovered and used again for several consecutively run without any re-activation [a] Dr.

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“…[ 4 ] This XRD pattern quite corresponds to the standard pattern 96‐900‐5843 code of Fe 3 O 4 nanoparticles. Also, several peaks of 2θ value at 18.29, 38.8, 39.5, 45.8, 55.9, 56.7, 61.9, and 74.1 positions may be related to the neodymium on MCM‐41 MNC, [ 56,57 ] which this series of peaks does not exist in any of the XRD patterns of MCM‐41 MNC and LArg‐5BrSalen@MNC. Also, a broad peak of 2θ value about 20–30 position is related to the amorphous SiO 2 .…”

Section: Resultsmentioning

confidence: 99%

Novel neodymium complex on MCM‐41 magnetic nanocomposite as a practical, selective, and returnable nanocatalyst in the synthesis of tetrazoles with antifungal properties in agricultural

Moradi

Zarei

Tyula

et al. 2023

Applied Organom Chemis

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This project reports a simple procedure for the synthesis and characterization of neodymium on MCM-41 magnetic nanoparticles (MNPs) as a reusable nanocatalyst. First, magnetite (Fe 3 O 4 ) MNPs were prepared by chemical coprecipitation procedure from FeCl 3 hexahydrate and FeCl 2 tetrahydrate in basic NH 3 solution. At the second step, MCM-41 magnetic nanocomposite (MCM-41 MNC) was prepared by Fe 3 O 4 doping into mesoporous MCM-41 channels. At the third step, a novel neodymium Schiff base complex was immobilized on MCM-41 MNC. At the fourth step, this catalyst (Nd-LArg-5BrSalen@MNC) was used as practicable and magnetically recoverable nanocatalyst in the homoselective synthesis of tetrazoles. This nanocatalyst was characterized via several analysis, for example, TGA, TEM, UV, SEM, FT-IR, SEM-EDS, VSM, ICP, XRD, WDX, and BET. All tetrazole products were synthesized with high yield in a short time. Despite high catalytic activity of neodymium, it has rarely used as a catalyst in the synthesis of organic compounds.All synthesized organic compounds were identified by 1 H NMR, FT-IR, and physical properties. Nd-LArg-5BrSalen@MNC nanocatalyst displays high activity, good selectivity, stability, and more important facile magnetic separation. Nd-LArg-5BrSalen@MNC nanocatalyst can be isolated and used again for several times consecutively without considerable loss of its catalytic activity. The recycled catalyst was characterized by SEM, EDS, WDX, XRD, and FT-IR techniques and showed a good match with the fresh catalyst. Also, the antifungal activity of the some tetrazole derivatives was studied against Fusarium oxysporum (rot disease of chickpea root) and Botrytis cinerea (gray mold of strawberry) using the paper disk method on PDA culture medium.

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Mechanosynthesis, Crystal Structure and Magnetic Characterization of Neodymium Orthoferrite

Cited by 24 publications

References 18 publications

Simple Synthesis of NdFeO3 Nanoparticles By the Co-Precipitation Method Based on a Study of Thermal Behaviors of Fe (III) and Nd (III) Hydroxides

Simple Synthesis of NdFeO3 Nanoparticles By the Co-Precipitation Method Based on a Study of Thermal Behaviors of Fe (III) and Nd (III) Hydroxides

A New Neodymium Complex on Boehmite Nanoparticles with 1,3‐Bis(pyridine‐3‐ylmethyl)thiourea as a Practical and Reusable Nanocatalyst for the Chemoselective Synthesis of Tetrazoles

Novel neodymium complex on MCM‐41 magnetic nanocomposite as a practical, selective, and returnable nanocatalyst in the synthesis of tetrazoles with antifungal properties in agricultural

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