Systematic study of phase-formation and lattice structure of La0.9Sr0.1Fe1-xMoxO3 synthesized through the sol-gel method

H. Laysandra, D. Triyono, H. L. Liu, R. A. Rafsanjani

Research output: Contribution to journalArticle

Abstract

In this paper, we investigated the phase formation and lattice structure of La0.9Sr0.1Fe1−xMoxO3 (x = 0.0, 0.1, 0.2, and 0.3) (LSFMO), which we have synthesized through the sol-gel method. The heat treatment has been performed to study the chemical and physical reaction during the processes. The formation and structural evolution of the LSFMO phase were systematically investigated through scanning electron microscopy (SEM), x-ray powder diffraction (XRD), differential thermal analysis (DTA), thermogravimetric analysis (TGA), and Raman scattering spectroscopy. The SEM images revealed that the grains basically consisted of several crystallites. The XRD showed organic phases (C6H12O4 and H2N2O2) upon heating at 175 °C and 400 °C, which then gave way to the LSFMO phase after calcination at 900 °C. The lattice structure is orthorhombic and the lattice parameters and crystal distortion increase upon the addition of Mo. The results of the DTA exhibited two exotherms at temperatures near 300 °C and 450 °C, which were interpreted as the temperatures at which the organic phases decomposed. The TGA results confirmed weight loss due to the decomposition of the organic phases during the formation of the LSFMO phase. The Raman-active phonon modes provide evidence for the lattice distortion with increasing Mo doping.

Original languageEnglish
JournalCeramics International
DOIs
Publication statusAccepted/In press - 1 Jan 2020

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Differential thermal analysis
Sol-gel process
Thermogravimetric analysis
X rays
Scanning electron microscopy
Crystallites
Crystal lattices
Calcination
Lattice constants
Raman scattering
Heat treatment
Doping (additives)
Spectroscopy
Decomposition
Heating
Temperature
Crystals
Powder Diffraction

Keywords

  • LaSrFeMoO
  • Lattice structure
  • Phase formation
  • Raman scattering
  • Sol-gel

Cite this

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title = "Systematic study of phase-formation and lattice structure of La0.9Sr0.1Fe1-xMoxO3 synthesized through the sol-gel method",
abstract = "In this paper, we investigated the phase formation and lattice structure of La0.9Sr0.1Fe1−xMoxO3 (x = 0.0, 0.1, 0.2, and 0.3) (LSFMO), which we have synthesized through the sol-gel method. The heat treatment has been performed to study the chemical and physical reaction during the processes. The formation and structural evolution of the LSFMO phase were systematically investigated through scanning electron microscopy (SEM), x-ray powder diffraction (XRD), differential thermal analysis (DTA), thermogravimetric analysis (TGA), and Raman scattering spectroscopy. The SEM images revealed that the grains basically consisted of several crystallites. The XRD showed organic phases (C6H12O4 and H2N2O2) upon heating at 175 °C and 400 °C, which then gave way to the LSFMO phase after calcination at 900 °C. The lattice structure is orthorhombic and the lattice parameters and crystal distortion increase upon the addition of Mo. The results of the DTA exhibited two exotherms at temperatures near 300 °C and 450 °C, which were interpreted as the temperatures at which the organic phases decomposed. The TGA results confirmed weight loss due to the decomposition of the organic phases during the formation of the LSFMO phase. The Raman-active phonon modes provide evidence for the lattice distortion with increasing Mo doping.",
keywords = "LaSrFeMoO, Lattice structure, Phase formation, Raman scattering, Sol-gel",
author = "H. Laysandra and D. Triyono and Liu, {H. L.} and Rafsanjani, {R. A.}",
year = "2020",
month = "1",
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language = "English",
journal = "Ceramics International",
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Systematic study of phase-formation and lattice structure of La0.9Sr0.1Fe1-xMoxO3 synthesized through the sol-gel method. / Laysandra, H.; Triyono, D.; Liu, H. L.; Rafsanjani, R. A.

In: Ceramics International, 01.01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Systematic study of phase-formation and lattice structure of La0.9Sr0.1Fe1-xMoxO3 synthesized through the sol-gel method

AU - Laysandra, H.

AU - Triyono, D.

AU - Liu, H. L.

AU - Rafsanjani, R. A.

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AB - In this paper, we investigated the phase formation and lattice structure of La0.9Sr0.1Fe1−xMoxO3 (x = 0.0, 0.1, 0.2, and 0.3) (LSFMO), which we have synthesized through the sol-gel method. The heat treatment has been performed to study the chemical and physical reaction during the processes. The formation and structural evolution of the LSFMO phase were systematically investigated through scanning electron microscopy (SEM), x-ray powder diffraction (XRD), differential thermal analysis (DTA), thermogravimetric analysis (TGA), and Raman scattering spectroscopy. The SEM images revealed that the grains basically consisted of several crystallites. The XRD showed organic phases (C6H12O4 and H2N2O2) upon heating at 175 °C and 400 °C, which then gave way to the LSFMO phase after calcination at 900 °C. The lattice structure is orthorhombic and the lattice parameters and crystal distortion increase upon the addition of Mo. The results of the DTA exhibited two exotherms at temperatures near 300 °C and 450 °C, which were interpreted as the temperatures at which the organic phases decomposed. The TGA results confirmed weight loss due to the decomposition of the organic phases during the formation of the LSFMO phase. The Raman-active phonon modes provide evidence for the lattice distortion with increasing Mo doping.

KW - LaSrFeMoO

KW - Lattice structure

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KW - Raman scattering

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