Novel Synthesis of Plate-like LiFePO4 by Hydrothermal Method
| Autor: | Chang-Jiao Li, Shun-Wei Fan, Hongquan Liu, Wang Haifeng, Fu-Jie Fu, Yijie Gu, Peng-Gong Lv, Jianxu Ding, Long Cheng, Yun-Bo Chen, Yan-Ming Wang |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Renewable Energy Sustainability and the Environment Inorganic chemistry chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Hydrothermal circulation Ferrous chemistry.chemical_compound chemistry Impurity 0103 physical sciences Electrochemistry Hydrothermal synthesis General Materials Science Lithium Chelation 0210 nano-technology Citric acid Stoichiometry Nuclear chemistry |
| Zdroj: | Journal of New Materials for Electrochemical Systems. 19:033-036 |
| ISSN: | 2292-1168 1480-2422 |
| DOI: | 10.14447/jnmes.v19i1.345 |
| Popis: | Lithium iron phosphate (LiFePO4) was prepared by hydrothermal synthesis method using FeSO4·7H2O and LiH2PO4 as resource of Li and Fe. The ratio of Li: Fe was maintained 1:1. The results suggested that pH value played a crucial role in the synthesis of LiFePO4, especially for the generation of impurities. We found that adding citric acid to the precursor was an effective way for chelating ferrous ions, thereby preventing the undesirable iron compounds during hydrothermal treatment. The particle morphology and the crystal orientation of the prepared LiFePO4 particles were investigated by the XRD and SEM results. The X-ray diffraction pattern of the samples indicated that single-phase LiFePO4 were successfully synthesized by hydrothermal method with a stoichiometric 1:1 ratio of Li :Fe. |
| Databáze: | OpenAIRE |
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