Title
Effect of Li insertion in the crystal structure and magnetism of barbosalite prepared using solvothermal method
Date Issued
15 January 2020
Access level
metadata only access
Resource Type
journal article
Author(s)
Joseph Singh N.
Herojit Singh L.
Pati S.S.
Oliveira A.C.
Wang J.
Garg V.K.
University of Brasília
Publisher(s)
Elsevier Ltd
Abstract
The effect of Lithium insertion in the crystal structure and magnetic properties of Barbosalite [Fe3(PO4)2(OH)2], a polymorph of iron hydroxyl phosphate synthesized from variable Fe precursor (Fe(II) and Fe(III)), have been investigated. Effect of distortion in the crystal structure of Barbosalite appeared with minimum lithium hydroxide (LiOH.H2O) concentration of 0.5 M as depicted from the XRD patterns. Further, appearance of fresh peaks from 2 M is well matched with the crystal structure of LiFePO4. Studies with Mössbauer spectroscopy and SQUID Magnetometer intriguingly reveals that Li intercalation in the barbosalite affects only Fe(III) sites whereas the Fe(II) sites remains unaffected till 2 M. However, further increase in the Li concentration leads to structural transformation and results in LiFePO4 phase. Comparative studies of the structural and magnetic properties, magnetic transition are also discussed.
Volume
240
Language
English
OCDE Knowledge area
Química física
Subjects
Scopus EID
2-s2.0-85072026154
Source
Materials Chemistry and Physics
ISSN of the container
02540584
Sponsor(s)
The author LHS thank DST and Science and Engineering Research Board (SERB) with project file no. EMR/2016/001524 for the financial support. The author thanks DST-INSPIRE for providing scholarship. The authors thank Edi M. Guimarães for X-rays diffractometry measurements, John Mantilla for magnetic measurements, Kh. Chanchan Devi for assisting in the X-ray spectra using MAUD software, and Amit Garg for reading the manuscript.
Sources of information:
Directorio de Producción Científica
Scopus