期刊
NANOSCALE HORIZONS
卷 2, 期 6, 页码 326-332出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nh00078b
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资金
- MOE (Singapore) at the National University of Singapore [MOE2015-T2-2-094]
Mn3O4 with purposely tuned differentmorphologies, crystal structures and sizes is synthesized using a hydrothermal method with varying processing temperatures, together with the help of a surfactant. Systematic investigations, both by experimental and computational studies, into these Mn3O4 nanomaterials were conducted in order to find the most suitable morphology and a compatible electrolyte for energy storage applications. The Mn3O4 nanofibers with a tunnel size of 1.83-in the crystal structure show much higher volumetric capacitance (188 F cm(-3) at a scan rate of 1 mV s(-1) of cyclic voltammetry test) than two other morphologies/crystal structures, when using 1 M LiCl aq. as the electrolyte. It is demonstrated in this work that crystal morphology and particle size play important roles in determining the capacitance of an electrode material. In addition, the detailed structures, especially the atomic arrangements within the crystalline structure, are crucial in order to choose the most suitable electrolyte.
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