Pei-sen Li, Huan-yong Li, and Wan-qi Jie, Preparation and characterization of γ-La2S3 nanoparticles from thermal decomposition, Int. J. Miner. Metall. Mater., 18(2011), No. 6, pp. 748-752. https://doi.org/10.1007/s12613-011-0506-x
Cite this article as:
Pei-sen Li, Huan-yong Li, and Wan-qi Jie, Preparation and characterization of γ-La2S3 nanoparticles from thermal decomposition, Int. J. Miner. Metall. Mater., 18(2011), No. 6, pp. 748-752. https://doi.org/10.1007/s12613-011-0506-x
Pei-sen Li, Huan-yong Li, and Wan-qi Jie, Preparation and characterization of γ-La2S3 nanoparticles from thermal decomposition, Int. J. Miner. Metall. Mater., 18(2011), No. 6, pp. 748-752. https://doi.org/10.1007/s12613-011-0506-x
Citation:
Pei-sen Li, Huan-yong Li, and Wan-qi Jie, Preparation and characterization of γ-La2S3 nanoparticles from thermal decomposition, Int. J. Miner. Metall. Mater., 18(2011), No. 6, pp. 748-752. https://doi.org/10.1007/s12613-011-0506-x
To synthesize pure γ-La2S3 at lower temperature, lanthanide complex La(Et2S2CN)3·phen, containing La-S bond, was chosen as the precursors to decompose. The obtained samples were characterized by X-ray power diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) with an energy dispersive spectrometer and UV-Vis diffuse reflectance spectra. The decomposition mechanism of the lanthanide complex was studied by thermogravimetric analyses (TGA). The results show that the obtained samples are cubic phase particles with sizes among 20–50 nm and the band gap is 2.97 eV, which is bigger than that of its bulk crystal. TG/DTG results indicate that La(Et2S2CN)3·phen decomposed to γ-La2S3via La4(Et2S2CN)3 as an intermediate product.
To synthesize pure γ-La2S3 at lower temperature, lanthanide complex La(Et2S2CN)3·phen, containing La-S bond, was chosen as the precursors to decompose. The obtained samples were characterized by X-ray power diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) with an energy dispersive spectrometer and UV-Vis diffuse reflectance spectra. The decomposition mechanism of the lanthanide complex was studied by thermogravimetric analyses (TGA). The results show that the obtained samples are cubic phase particles with sizes among 20–50 nm and the band gap is 2.97 eV, which is bigger than that of its bulk crystal. TG/DTG results indicate that La(Et2S2CN)3·phen decomposed to γ-La2S3via La4(Et2S2CN)3 as an intermediate product.
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