Structural Characteristics and Dielectric Properties of La1-xCoxFeO3 and LaFe1-xCoxO3 Synthesized via Metal Organic Complexes

Haron, Wankassama; Thaweechai, Thammanoon; Wattanathana, Worawat; Laobuthee, Apirat; Manaspiya, Hathaikarn; Veranitisagul, Chatchai; Koonsaeng, Nattamon

doi:10.1016/j.egypro.2013.06.815

Cited by 48 publications

(15 citation statements)

References 13 publications

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“…In recent decades, studies on the synthesis and characteristics of inorganic nanoparticles, and nano-structured materials-including chemical components, structures, and morphologies-have drawn much interest due to several advantages of nanoscale particles in comparison with micron-sized ones [1,2]. Specifically, as the particle size decreases from the microscale to the nanoscale, materials based on the orthoferrites of rare-earth elements (RFeO 3 , where R is a rare-earth element) exhibit a clear perovskite structure and a high sensitivity in terms of electrical and magnetic properties [3][4][5][6][7]. Moreover, the nano-sized crystalline perovskite materials can be applied in several advanced technologies such as solid oxide fuel cells, catalysts, chemical sensors, and electrode materials.…”

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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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%

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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“…The PrFeO 3 nanoparticles were prepared by modified co-precipitation method and annealed at different temperatures (650, 750 and 850°C). It was found that after annealing the single-phase orthorhombic PrFeO 3 was generated possessing the average particle sizes in the range of 25-30 nm and unit cell volumes in the range of 237-239 Å 3 . As a result of these structural features, the PrFeO 3 nanoparticles adopted the strong adsorption bands in the UV-Vis range.…”

Section: Discussionmentioning

confidence: 99%

“…Complex oxides with ReMO 3 perovskite structure, where Re and M are rare-earth and transition metals, respectively, represent an important class of functional materials [1][2][3]. Especially, the materials based on orthoferrite rare-earth elements (Re = La, Pr, Nd, Ho, etc.)…”

Section: Introductionmentioning

confidence: 99%

Crystal structure, optical and magnetic properties of PrFeO3 nanoparticles prepared by modified co-precipitation method

Tiến

Tram

Yakovlevna

et al. 2020

PAC

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In this work, PrFeO3 nanoparticles were synthesized by modified co-precipitation method and annealed at different temperatures up to 850?C. The annealed PrFeO3 nanoparticles have single phase orthorhombic structure and the average particle size of 25-30 nm. Due to the very small particle size the prepared PrFeO3 nanoparticles are capable of being used as photocatalyst materials thanks to their strong adsorption bands at 230-400 nm and 400-800 nm observed from the UV-Vis spectra. Additionally, the PrFeO3 nanoparticles are paramagnetic materials with Hc ~ 10Oe and Mr ~ 0. These findings demonstrate their potential use not only as photocatalysts, but also as magnetic materials.

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“…The features of rare-earth orthoferrites RFeO 3 (R = rare-earth elements) such as thermal, electrical, magnetic and optical properties depend on chemical component, particle size and synthetic methods [1][2][3][4][5][6]. Based on specific use purposes, there are different requirements about performance of orthoferrites.…”

Section: Introductionmentioning

confidence: 99%

Low-Temperature Co-Precipitation Synthesis of HoFeO3 Nanoparticles

Mai

Tiến

2021

Crystals

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In this research, we investigate and discuss the characteristics of HoFeO3 nanoparticles synthesized by the co-precipitation method at low temperature (t° ≤ 4 °C). The single-phase HoFeO3 samples with the orthorhombic structure formed after annealing of the precipitates at different temperatures up to 950 °C. The annealed HoFeO3 nanoparticles have an average crystal size of 10–20 nm (SEM, TEM). UV-Vis spectrum of HoFeO3 sample annealed at 750 °C showed strong UV and Vis absorption with small optical energy gap (Eg = 1.56 eV). In the range temperature of 100–300 K, the HoFeO3 samples showed superparamagnetic behaviour at 5 kOe with high magnetization (Ms = 1.3–2.4 emu/g) and very low susceptibility (χ << 1).

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Structural Characteristics and Dielectric Properties of La1-xCoxFeO3 and LaFe1-xCoxO3 Synthesized via Metal Organic Complexes

Cited by 48 publications

References 13 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

Crystal structure, optical and magnetic properties of PrFeO3 nanoparticles prepared by modified co-precipitation method

Low-Temperature Co-Precipitation Synthesis of HoFeO3 Nanoparticles

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