Insight of novel layered perovskite PrSrMn2O5+δ: A neutron powder diffraction study
Artikel i vetenskaplig tidskrift, 2020

Neutron diffraction is very important to characterizing complex oxide materials, especially for the light element position and occupancy. In this study, a new layered perovskite oxide material, PrSrMn2O5+δ, was prepared by the solid-state reaction method and characterized by using X-ray and neutron powder diffraction, scanning electron microscopy and thermogravimetric analysis. X-ray diffraction data showed that the material adopted orthorhombic symmetry and Rietveld refinement of the neutron diffraction data gave accurate unit cell parameters (a = 3.8907 (1) Å, b = 3.8227 (1) Å, and c = 7.6846 (2) Å, atomic positions and space group (Pmmm)). Scanning electron microscopy showed a porous and interlinked microstructure. Thermogravimetric analysis exhibited two-stage weight losses up to 1000 °C from room temperature, indicating a good amount of oxygen losses and high material stability.

Rietveld analysis

Perovskite oxide

Neutron diffraction

Microstructure

PrSrMn O 2 5+δ

Författare

Shammya Afroze

Chalmers, Kemi och kemiteknik, Energi och material

Universiti Brunei Darussalam

Nico Torino

Chalmers, Kemi och kemiteknik, Energi och material

Paul Henry

Chalmers, Kemi och kemiteknik, Energi och material

STFC Rutherford Appleton Laboratory

Md Sumon Reza

Universiti Brunei Darussalam

Q. Cheok

Universiti Brunei Darussalam

A. K. Azad

Universiti Brunei Darussalam

Materials Letters

0167-577X (ISSN)

Vol. 261 127126

Ämneskategorier

Oorganisk kemi

Keramteknik

Materialkemi

DOI

10.1016/j.matlet.2019.127126

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Senast uppdaterat

2021-05-20