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

Farhadi, Saeed; Momeni, Zohreh; Taherimehr, Masoumeh

doi:10.1016/j.jallcom.2008.03.113

Cited by 88 publications

(40 citation statements)

References 35 publications

(38 reference statements)

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“…Nowadays perovskite-type oxide RFeO 3 (where R stands for rare-earth element) materials have attracted considerable attention because of their useful application in many fields [1][2][3]. Those materials have wide applications in various fields, such as solid oxide fuel cells [4,5], sensors [2,3], environmental catalysts [2][3][4][5] and magnetic material [6][7][8] etc.…”

Section: Introductionmentioning

confidence: 99%

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Facile hydrothermal synthesis and characterization of LaFeO3 nanospheres for visible light photocatalytic applications

Kumar

Jayavel

2014

J Mater Sci: Mater Electron

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LaFeO 3 nanospheres were synthesized by hydrothermal method followed by calcination. Citric acid was found to be key factor to the purity and the surface morphology of the LaFeO 3 nanospheres. The obtained nanospheres have been structurally characterized by XRD which confirms the single crystalline orthorhombic structure. The structural information of the nanosphere was also confirmed from the Raman spectrum. HRSEM and AFM revealed that the prepared sample has been composed of spherical like morphology with an average size of about 45 nm. From XPS analysis, the chemical state of the LaFeO 3 nanospheres was confirmed. Magnetic measurement indicates the products shows weak magnetic behaviour. The UV-Vis spectroscopy analysis shows strong absorption at 466 nm which confirms that the obtained material has excellent visible light absorption ability. Furthermore, the photocatalytic experiment demonstrates that the prepared LaFeO 3 nanospheres exhibit well and stable photocatalytic activity for decomposition of methyl orange under visible-light irradiation.

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Section: Introductionmentioning

confidence: 99%

“…Those materials have wide applications in various fields, such as solid oxide fuel cells [4,5], sensors [2,3], environmental catalysts [2][3][4][5] and magnetic material [6][7][8] etc. LaFeO 3 is one of perovskite-type oxide that has an orthorhombic perovskite structure.…”

Section: Introductionmentioning

confidence: 99%

Facile hydrothermal synthesis and characterization of LaFeO3 nanospheres for visible light photocatalytic applications

Kumar

Jayavel

2014

J Mater Sci: Mater Electron

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“…The average crystallite size was evaluated from XRD broadening peak using the Scherrer's equation 26 which was found to be ~23 nm. The specific surface area of BSCF powder and the corresponding size estimated by BET diameter equation 27 were found to be 9.93 m 2 /g and 107.8 nm, respectively. Morphology and characteristics of BSCF powder can be seen in SEM micrographs, which is shown in Figure 2.…”

Section: Synthesismentioning

confidence: 98%

Microwave Assisted Synthesis and Sintering of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Perovskite

Nuernberg

Morelli

2015

Mat. Res.

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“…U radovima je opisano korištenje citratnih [7,8], nitratnih [9,10] te karbonatnih i oksidnih prekursora [11]. U prethodnim istraživanjima se takođe spominje i sinteza samog CaTiO 3 pudera i to hidrotermalnom metodom.…”

Section: Uvodunclassified

Sinteza Kalcijum Feritnih Perovskita Mikrovalno-Potpomognutom Dekompozicijom Različitih Prekursora

Zeljković

Ivas

Škundrić

et al. 2014

GHTERS

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Originalni naučni radSinteza kalcijum feritnih pudera tipa perovskita je izvršena u kratkom vremenskom periodu putem dekompozicije karbonatnih i oksidnih prekursora korištenjem mikrovalne iradijacije (2.45 GHz, snage do 250 W). Na temperaturnim i energetskim dijagramima je kontinuirano bilježena apsorbovana, reflektirana i primjenjena snaga te temperatura uzorka. Karbonatni i oksidni prekursori su uspješno transformisani u kalcijum ferit. Početni materijali i produkti su karakterizirani difrakcijom X-zraka (XRD). Sinteza iz kalcijum oksida i magnetita se gledano po kristaliziranosti finalnog produkta pokazala uspješnijom. U poređenju sa dobro poznatim tradicionalnim putevima sinteze predstavljena metoda mikrovalno -potpomognute dekompozicije prekursora je brza, čista i energetski efikasna. Uz korištenje na mikrovalnu iradijaciju osjetljivih prekursora ovdje predstavljeni sintetski put zagrijavanjem mikrovalnm zračenjem može biti preporučen za proizvodnju kalcijum feritnih i drugih materijala tipa perovskita.Ključne riječi: Kalcijum feritni puderi, mikrovalno potpomognuta sinteza, perovskiti UVODFeriti su kompleksni oksidi koji u svom sastavu sadrže željezo posebno interesantni zbog svojih magnetnih osobina. Kalcijum feriti, kao posebna grupa, se odlikuju odabranim osobinama koje su omogućile primjenu u industriji čelika [1], kao adsorbensi [2] te u optičkim memorijama [3]. U ranijim studijama opisana je sinteza kalcijum ferita i to sol gel metodom [4,5] te metodom čvrstog stanja [6] uz napomenu da reakcioni mehanizam i dalje ostaje nedovoljno razjašnjen.Primjena mikrovalnog zračenja u sintezi oksida tipa perovskita je opisana u nekoliko radova i označena je kao vrlo uspješna sintetska metoda s obzirom na utrošenu energiju i vrijeme. U radovima je opisano korištenje citratnih [7,8], nitratnih [9,10] te karbonatnih i oksidnih prekursora [11]. U prethodnim istraživanjima se takođe spominje i sinteza samog CaTiO 3 pudera i to hidrotermalnom metodom. [12] Teorije o interakciji materijal -mikrovalno polje jos uvijek nisu u stanju da objasne mnoge od fenomena povezanih sa mikrovalovima jednim dijelom i zbog specifičnosti interakcije svakog posebnog materijala sa mikrovalovima.Primjena mikrovalnog zračenja u sintezi oksida tipa perovskita je opisana u nekoliko radova i označena je kao vrlo uspješna sintetska metoda s obzirom na utrošenu energiju i vrijeme. U radovima je opisano korištenje citratnih [7,8], nitratnih [9,10] te karbonatnih i oksidnih prekursora [11]. U prethodnim istraživanjima se takođe spominje i sinteza samog CaTiO 3 pudera i to hidrotermalnom metodom. [12] Teorije o interakciji materijal -mikrovalno polje jos uvijek nisu u stanju da objasne mnoge od fenomena povezanih sa mikrovalovima jednim dijelom i zbog specifičnosti interakcije svakog posebnog materijala sa mikrovalovima.Osnovne karakteristike mikrovalnog zračenja uključuju: penetrativnu radijaciju, rapidno zagrijavanje, selektivno zagrijavanje materijala te samoograničavanje zagrijavanja što podrazumijeva sveobuhvatnu studiju za svaki posmatrani m...

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

Cited by 88 publications

References 35 publications

Facile hydrothermal synthesis and characterization of LaFeO3 nanospheres for visible light photocatalytic applications

Facile hydrothermal synthesis and characterization of LaFeO3 nanospheres for visible light photocatalytic applications

Microwave Assisted Synthesis and Sintering of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Perovskite

Sinteza Kalcijum Feritnih Perovskita Mikrovalno-Potpomognutom Dekompozicijom Različitih Prekursora

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