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标题：Crystal Structure Analysis of Lithium Zirconate Prepared from Local Sand at a various ratio of Li2CO3 to ZrO2
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作者：V. Natalia ; F. Rahmawati ; A. Purwanto 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2018
卷号：9
期号：4
页码：1152-1158
DOI：10.26872/jmes.2018.9.4.126
出版社：University of Mohammed Premier Oujda
摘要：Lithium zirconate, Li2ZrO3 is a promising candidate anode material for lithium ion battery.Due to the abundant of zircon sand as a raw material for lithium zirconate synthesis inIndonesia, therefore this research study the preparation of lithium zirconate. The aims areto increase the economic value of the local zircon sand as well as to ensure the functionalmaterials supplyfor developing energy conversion technology. The Lithiumzirconate,Li2ZrO3 was prepared by solid state reaction with Li2CO3 and ZrO2 from zircon sand asstarting materials.The produced white powder was then analyzed by XRD to ensure theresult by comparing witha standard diffraction. Furthermore,the crystal structure was alsodetermined by conducting refinement on the diffraction data. The refinement proceed wellwith Le Bail method in a RIETICA software. The crystal structure is monoclinic with aspace group ofC21/c1. The cell parameters are a= 5.4304Å, b= 9.0240Å, and c= 5.4207Å.The structure compatibility is shown by the low Rp and Rwp, i.e 6.78% and 7.17%,respectively. This research also found that the prepared lithium zirconate is in a singlephase without any impurities presence. The Fourier plot of electron mapping shows asignificant change on electron map when the material converted from ZrO2 to Li2ZrO3.The FTIR spectra shows differences in the adsorption peaks of ZrO2 and Li2ZrO3.Meanwhile, the particle size of Li2ZrO3 particles is around 1.1 – 2.1 μm.
关键词：Lithium zirconate;Zircon sand;Crystal structure;Solid state;Zirconiumdioxide;