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Investigation of st...
Investigation of structural and thermal evolution in novel layered perovskite NdSrMn 2 O 5 + δ via neutron powder diffraction and thermogravimetric analysis
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- Afroze, Shammya, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Yilmaz, Duygu (author)
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Reza, Md Sumon (author)
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- Henry, Paul, 1972 (author)
- Uppsala universitet,Uppsala University,STFC Rutherford Appleton Laboratory
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Cheok, Q. (author)
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Zaini, Juliana H. (author)
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Azad, A. K. (author)
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- Issakhov, Alibek (author)
- Al Farabi Kazakh National University
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- Sadeghzadeh, Milad (author)
- University of Tehran
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(creator_code:org_t)
- Hindawi Limited, 2020
- 2020
- English.
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In: International Journal of Chemical Engineering. - : Hindawi Limited. - 1687-806X .- 1687-8078. ; 2020
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Abstract
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- Neutron diffraction is one of the best methods for structural analysis of a complex, layered perovskite material with low symmetry by accurately detecting the oxygen positions through octahedral tilting. In this research, the crystal structure of NdSrMn2O5+δ was identified through X-ray diffraction (XRD) and neutron powder diffraction (NPD) at room temperature (RT), which indicated the formation of a layered structure in orthorhombic symmetry in the Pmmm (no. 47) space group. Rietveld refinement of the neutron diffraction data has confirmed the orthorhombic symmetry with unit cell parameters (a = 3.8367 (1) Å, b = 3.8643 (2) Å, and c = 7.7126 (1) Å), atomic positions, and oxygen occupancy. Thermogravimetric analysis revealed the total weight loss of about 0.10% for 20–950°C temperature, which occurred mainly to create oxygen vacancies at high temperatures. Rietveld analyses concurred with the XRD and neutron data allowing correlation of occupancy factors of the oxygen sites.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Biologi -- Strukturbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Structural Biology (hsv//eng)
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Afroze, Shammya, ...
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Yilmaz, Duygu
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Reza, Md Sumon
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Henry, Paul, 197 ...
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Cheok, Q.
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Zaini, Juliana H ...
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show more...
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Azad, A. K.
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Issakhov, Alibek
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Sadeghzadeh, Mil ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Inorganic Chemis ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Structural Biolo ...
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Chalmers University of Technology