Open Access
ACS Omega, volume 6, issue 17, pages 11348-11354
Synthesis of Cerium Tetrafluoride and Cerium Trifluoride Nanoscale Polycrystals from Ammonium Hydrogen Difluoride
1
Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
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Publication type: Journal Article
Publication date: 2021-04-22
General Chemistry
General Chemical Engineering
Abstract
This paper reported a dry synthesis and characterization of cerium tetrafluoride (CeF4) and cerium trifluoride (CeF3) nanoscale polycrystals (NPs). The CeF4 NPs were spherical or flaky and approximately 10 ± 2 nm in diameter. The CeF3 NPs were rod-shaped nanorods with a length of about 150 ± 5 nm and a diameter of about 20 ± 2 nm. The first step was to synthesize the intermediate product-(NH4)4CeF8 by mixing CeO2 and NH4HF2 at a molar ratio of 1:6 at 390 K. The structural characterization was analyzed by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). Then, (NH4)4CeF8 was heated in an argon gas flow to synthesize the CeF3 and CeF4 NPs. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). The properties of CeF3 and CeF4 NPs were further evaluated by transmission electron microscopy (TEM), selected area electron diffraction pattern (SAED), and high-resolution transmission electron microscopy (HRTEM). The findings provided an alternative strategy for the synthesis of nanometer fluorides, which could be a reference for high-performance research on other nanometer fluorides.
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6 publications, 75%
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1 publication, 12.5%
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Sun Y. et al. Synthesis of Cerium Tetrafluoride and Cerium Trifluoride Nanoscale Polycrystals from Ammonium Hydrogen Difluoride // ACS Omega. 2021. Vol. 6. No. 17. pp. 11348-11354.
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Sun Y., Yang X., Mei H., Li T. Synthesis of Cerium Tetrafluoride and Cerium Trifluoride Nanoscale Polycrystals from Ammonium Hydrogen Difluoride // ACS Omega. 2021. Vol. 6. No. 17. pp. 11348-11354.
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TY - JOUR
DO - 10.1021/acsomega.1c00332
UR - https://doi.org/10.1021/acsomega.1c00332
TI - Synthesis of Cerium Tetrafluoride and Cerium Trifluoride Nanoscale Polycrystals from Ammonium Hydrogen Difluoride
T2 - ACS Omega
AU - Mei, Huaping
AU - Li, Taosheng
AU - Sun, Yongju
AU - Yang, Xinyi
PY - 2021
DA - 2021/04/22 00:00:00
PB - American Chemical Society (ACS)
SP - 11348-11354
IS - 17
VL - 6
SN - 2470-1343
SN - 2470-1343
ER -
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@article{2021_Sun,
author = {Huaping Mei and Taosheng Li and Yongju Sun and Xinyi Yang},
title = {Synthesis of Cerium Tetrafluoride and Cerium Trifluoride Nanoscale Polycrystals from Ammonium Hydrogen Difluoride},
journal = {ACS Omega},
year = {2021},
volume = {6},
publisher = {American Chemical Society (ACS)},
month = {apr},
url = {https://doi.org/10.1021/acsomega.1c00332},
number = {17},
pages = {11348--11354},
doi = {10.1021/acsomega.1c00332}
}
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Sun, Yongju, et al. “Synthesis of Cerium Tetrafluoride and Cerium Trifluoride Nanoscale Polycrystals from Ammonium Hydrogen Difluoride.” ACS Omega, vol. 6, no. 17, Apr. 2021, pp. 11348-11354. https://doi.org/10.1021/acsomega.1c00332.