Sonochemical synthesis of nanocrystalline LaFeO3

Sivakumar, M.; Gedanken, Aharon; Zhong, Wei; Jiang, Yao-Hui; Du, You Wei; Brukental, I.; Bhattacharya, Dipten; Yeshurun, Y.; Nowik, I.

doi:10.1039/b310110j

Cited by 111 publications

(52 citation statements)

References 30 publications

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“…For the synthesis of LaFeO 3 and related compounds, methods involving solid-state reaction [8], hydrothermal synthesis [9], combustion synthesis [10,11], sol-gel [12][13][14], co-precipitation [15], reverse drop co-precipitation with poly(vinyl alcohol) as a protecting agent [16], sonochemical method [17], thermal decomposition of La[Fe(CN) 6 ] in conventional furnace [18][19][20] and citrate-gel method [21] have been reported in the literature. However, the conventional solid-state reaction method requires several heating and grinding steps to ensure the homogeneous mixing of the various oxides [8] while the reverse drop co-precipitation method [16] requires the use of more chemicals and longer time for the formation of the LaFeO 3 .…”

Section: Introductionmentioning

confidence: 99%

Rapid synthesis of perovskite-type LaFeO3 nanoparticles by microwave-assisted decomposition of bimetallic La[Fe(CN)6]·5H2O compound

Farhadi

Momeni

Taherimehr

2009

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Rapid synthesis of perovskite-type LaFeO3 nanoparticles by microwave-assisted decomposition of bimetallic La[Fe(CN)6]·5H2O compound

Farhadi

Momeni

Taherimehr

2009

Journal of Alloys and Compounds

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“…Recently, a number of methods have been used to prepare ultrapure and ultrafine ReFeO 3 nanoparticles, such as high-energy ball milling [6], solid-state reaction [14], thermal decomposition [15], sonochemical method [16], hydrothermal process [17], and self-ignited sol-gel method [18]. The structure and properties of these materials are strongly influenced by the synthesis processing of its precursor particles, so much attention has been paid on the improvement of preparation method.…”

Section: Introductionmentioning

confidence: 99%

Manganese substitution effects in SmFeO3 nanoparticles fabricated by self-ignited sol–gel process

Shen

2015

J Sol-Gel Sci Technol

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Through the optimization of process, a series of orthorhombic perovskite SmFe 1-x Mn x O 3 (x = 0, 0.05, 0.1, 0.15, 0.2, 0.25) nanoparticles were readily prepared by selfignited sol-gel process. The Mn substitution effects on the structure, morphology and magnetic properties of SmFeO 3 have been investigated in detail. Pure phase orthorhombic SmFeO 3 is calcinated at 900°C for 3 h. By the introduction of Mn 3? , the synthesis temperature of orthorhombic perovskite-type SmFe 1-x Mn x O 3 particles has been lowered to be around 700°C. At room temperature, weak ferromagnetic behavior is observed at SmFeO 3 which is caused by its canted antiferromagnetic ordering. In the SmFe 1-x Mn x O 3 system for x B 0.15, the weak ferromagnetic interactions are effectively enhanced with increasing Mn 3? , showing increased magnetization and coercive field. However, for SmFe 0.8 Mn 0.2 O 3 and SmFe 0.75 Mn 0.25 O 3 , the weak ferromagnetic couplings begin to decrease. SmFe 0.85 Mn 0.15 O 3 displays the strongest ferromagnetic behavior. This peculiar behavior is ascribed to the complex magnetic interactions between Mn and Fe ions. Graphical Abstract A series of orthorhombic perovskite SmFe 1-x Mn x O 3 (0 B x B 0.25) nanopowders were readily prepared by self-ignited sol-gel process. The calcination temperature has been lowered to be around 700°C by the introduction of Mn 3? . SmFe 0.85 Mn 0.15 O 3 displays the strongest ferromagnetic behavior. The tunability of the magnetic characteristics of SmFe 1-x Mn x O 3 is ascribed to the complex magnetic interactions between Mn and Fe ions.

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“…Based on the target applications, different synthesis methods have been used as alternative for solid state reactions and mechanical chemical solid reaction, including coprecipitation [21,22], combustion [23][24][25][26], sol-gel [27][28][29], gel [30] and sol-gel [31], autocombustion, polyol [32], microemulsion [33], hydrothermal [34], sonochemical [35], low temperature [36] and microwave assisted [37] thermal decomposition. However there are no studies concerning the presence of residual carbon, the calcination temperature that should be used to eliminate it, or the thermal evolution of the obtained powders: crystal size, presence of agglomerates.…”

Section: Introductionmentioning

confidence: 99%