Abstract
Nano-LiMn2O4 was synthesized by co-precipitation method and doped with Al ion in this study. This kind of material was characterized by X-ray diffraction, transmission electron microscope and energy dispersive spectrometer. Effects of doped Al content (0.1, 0.2 0.3 and 0.4), calcination temperatures (600, 650, 700, 750, 800 and 850 °C) and calcination times (4, 6, 8, 10 and 12 h) on crystallinity and grain size of materials were studied. Results indicated that Al doping did not change the spinel structure. Calcination temperature and time both showed positive correlations with the grain size. Grain growth kinetics of LiMn2O4 nanocrystal was simulated with a conventional model and a novel model respectively. Simulation results exhibit that the novel model is suitable to fit with data, meaning the important roles of diffusion and surface reaction.
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Acknowledgements
This work was supported by Fundamental Research Funds for Central Universities of Central South University (2017zzts108) and Innovative Projects for Students of Central South University.
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Song, X., Zhang, Y., Wang, H., Liu, D., An, M. (2018). Grains Growth Kinetics of Al Doped Nano-LiMn2O4. In: Han, Y. (eds) Advances in Energy and Environmental Materials. CMC 2017. Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-13-0158-2_29
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DOI: https://doi.org/10.1007/978-981-13-0158-2_29
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