Preparation and Characterization of LaB6Nanopowders by Calciothermic Reduction AITranslate
Abstract AITranslate
LaB6 nanopowders were successfully prepared by calciothermic reduction method for the first time.The effects of reduction temperature on the phase composition,morphology and particle size of powder products were studied by X-ray diffractometer(XRD)and field emission scanning electron microscope(FE-SEM),and the optical absorption properties of nanopowders were characterized by UV/VIS/NIR spectrophotometer.The results show that the prepared LaB6 nanopowders have a simple cubic single-phase crystal structure,good crystallinity and nearly spherical particle morphology with an average grain size of(35±6)nm.With the increase of reaction temperature,the particle size of the powders increases and the particle morphology shifts to cubic shape.The absorption spectrum shows that the LaB6 nanopowder prepared at 800℃has strong absorption properties in the ultraviolet and near-infrared regions,and its maximum transmission light wavelength is 595 nm,which is essentially in agreement with the first-principles calculation results of LaBe6.
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DOI：
Chinese Library Classification Number:TQ133.3[化学工程—无机化工]
Citation Information:
LaB6 nanopowders were successfully prepared by calciothermic reduction method for the first time.The effects of reduction temperature on the phase composition,morphology and particle size of powder products were studied by X-ray diffractometer(XRD)and field emission scanning electron microscope(FE-SEM),and the optical absorption properties of nanopowders were characterized by UV/VIS/NIR spectrophotometer.The results show that the prepared LaB6 nanopowders have a simple cubic single-phase crystal structure,good crystallinity and nearly spherical particle morphology with an average grain size of(35±6)nm.With the increase of reaction temperature,the particle size of the powders increases and the particle morphology shifts to cubic shape.The absorption spectrum shows that the LaB6 nanopowder prepared at 800℃has strong absorption properties in the ultraviolet and near-infrared regions,and its maximum transmission light wavelength is 595 nm,which is essentially in agreement with the first-principles calculation results of LaBe6.
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| GB/T 7714-2015 | [1] LIU Hua, ZHAO Rui-shan, WEN Kang, et al. Preparation and Characterization of LaB6Nanopowders by Calciothermic Reduction[J]. Rare Metals and Cemented Carbides, 2022(4): 51-56. |
| MLA | [1] LIU Hua, et al., "Preparation and Characterization of LaB6Nanopowders by Calciothermic Reduction." Rare Metals and Cemented Carbides, no. 4, 2022, pp. 51-56. |
| APA | [1] LIU Hua, ZHAO Rui-shan, WEN Kang, DENG Yue-hua, HUANG Mei-song, & YANG Lu-hui. (2022). Preparation and Characterization of LaB6Nanopowders by Calciothermic Reduction. Rare Metals and Cemented Carbides(4), 51-56. |
| IEEE | [1] LIU Hua, ZHAO Rui-shan, WEN Kang, DENG Yue-hua, HUANG Mei-song, and YANG Lu-hui, "Preparation and Characterization of LaB6Nanopowders by Calciothermic Reduction," Rare Metals and Cemented Carbides, no. 4, pp. 51-56, 2022. keywords: {lanthanum hexaboride;nanopower;calciothermic reduction;optical absorption;morphology;particlesize} |