X-ray Diffraction (XRD) and X-ray Absorption Near Edge Spectroscopy (XANES) Analyses of $LiFe_{1-x}Cu_{x}PO_{4}$ Powders

Content Provider	Scilit
Author	Muyasaroh, A. F. Latif, C. Lapboonruang, S. Firdausi, A. Mardiana, D. Pratapa, S.
Copyright Year	2019
Description	Journal: Iop Conference Series: Materials Science and Engineering Data analyses of XRD and XANES using Fe as absorber have been conducted which were aimed for phase identification, Fe oxidation state determination, absorption edge value $(E_{0}$ ) calculation, and valence electron determination of $LiFe_{x}Cu_{1-x}PO_{4}$ (x = 3%, 4%, and 5%) powders. The powders were prepared by a dissolution method with the source of Fe was local ironstone from South Kalimantan, Indonesia. Analyses of the x-ray diffraction data of the powders were done using the Rietveld method. The XANES data were acquired using Fe K-edge spectral techniques at Synchrotron Light Research Institute (SLRI), Nakhon Ratchasima, Thailand. Results showed that olivine was the only identified phase in the $LiFe_{1-x}Cu_{x}PO_{4}$ powders. Further analyses gave the crystallite size of 188, 193, and 205 nm and cell volume of 278.96, 279.12, and 280.52 $Å^{3}$, for the x = 3, 4, and 5% samples, respectively. Qualitative analysis of the XANES data acquired for all samples showed the oxidation state of $Fe^{2+}$, and the absorption edge values $(E_{0}$ ) were 7121.56, 7121.71 and 7121.75 eV for the samples.
Related Links	https://iopscience.iop.org/article/10.1088/1757-899X/515/1/012009/pdf
ISSN	17578981
e-ISSN	1757899X
DOI	10.1088/1757-899x/515/1/012009
Journal	Iop Conference Series: Materials Science and Engineering
Issue Number	1
Volume Number	515
Language	English
Publisher	IOP Publishing
Publisher Date	2019-04-17
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Materials Science and Engineering Characterization and Testing of Materials Fe Oxidation State
Content Type	Text
Resource Type	Article