Liquid Synthesis and Characterization of Nanosized Cubic Lithium Fluoride Particles

doi:10.11901/1005.3093.2018.519

Chinese Journal of Materials Research

2019, Vol. 33

Issue (4): 271-276 DOI: 10.11901/1005.3093.2018.519

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Liquid Synthesis and Characterization of Nanosized Cubic Lithium Fluoride Particles

Lielin WANG¹(

),Yang ZENG¹,Hua XIE¹,Sihao DENG¹,Xingping LI¹,Facheng YI¹,Shuqing JIANG²,Yinhang ZHOU²

1. Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang 621010, China
2. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China

Cite this article:

Lielin WANG,Yang ZENG,Hua XIE,Sihao DENG,Xingping LI,Facheng YI,Shuqing JIANG,Yinhang ZHOU. Liquid Synthesis and Characterization of Nanosized Cubic Lithium Fluoride Particles. Chinese Journal of Materials Research, 2019, 33(4): 271-276.

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Abstract

The nanosized particles of LiF were successfully prepared via liquid synthesis method with ammonium fluoride and lithium hydroxide as raw materials, anhydrous ethanol as solvent and crystallization-controlling agent. The structure and morphology of LiF particles were characterized by means of XRD, SEM, TEM and particle size analyzer. The precursor mainly composes of LiF, NH₄F and LiOH·H₂O. The thermal analysis of the precursor indicates that the decomposition temperature of ammonium fluoride is about 190°C. Nano-powders of LiF has a single cubic crystallographic structure after calcinations at 220~400℃. The nano-LiF particles with average size of about 80nm are full in crystallinity, uniform in size and good in shape.

Key words: inorganic non-metallic materials nanometer lithium fluoride liquid synthesis method cubic crystal structure

Received: 23 August 2018

ZTFLH:

TQ174

Fund: National Natural Science Foundation of China(21101129);Nuclear Energy Development Project(90509160001);Sichuan Science and Technology Program(2018JY0449);Sichuan Science and Technology Program(17CZ0037)

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	Articles by authors
	Lielin WANG
	Yang ZENG
	Hua XIE
	Sihao DENG
	Xingping LI
	Facheng YI
	Shuqing JIANG
	Yinhang ZHOU

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https://www.cjmr.org/EN/10.11901/1005.3093.2018.519 OR https://www.cjmr.org/EN/Y2019/V33/I4/271

Fig.1 X-ray diffraction pattern of LiF precursor

Fig.2 SEM image of the precursor

Fig.3 TG/DTA curves of lithium fluoride precursors

Fig.4 XRD patterns of lithium fluoride samples prepared at different calcination temperatures

Fig.5 Microstructure of the preparation of lithium fluoride samples of different calcination temperature (a)220℃， (b) 300℃， (c) 400℃

Fig.6 SEM image and particle size distribution of LiF powder samples

Table 1 Grain size of the product at different removal temperatures

Fig.7 EDS analysis image of LiF samples

Table 2 Results of EDS analysis for LiF samples

Fig.8 TEM (a) image and SAED image (b) of LiF powder

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