Hydrothermal synthesis and electrochemical properties of α-MoO3 nanobelts used as cathode materials for Li-ion batteries
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Uniform α-MoO3 nanobelts were successfully synthesized by the hydrothermal process at 180°C for 20 h of the acidic solutions with different pH values of 0–0.75, adjusted using HCl (conc.). XRD and SEM results revealed that the pH of the precursor solutions played an important role in the phase, impurities, and morphology of the products. At the pH=0, the perfect α-MoO3 nanobelts with a few tens of microns long were synthesized. By the TEM characterization, orthorhombic MoO3 has a distinctive layered structure along the  direction, consisting of distorted MoO6 octahedrons connected by common corners along the  direction and common edges along the  direction. The electrochemical measurement showed that the α-MoO3 nanobelts have high specific charge capacity.
KeywordsMoO3 Precursor Solution Irreversible Capacity Molybdenum Trioxide Specific Charge Capacity
We wish to thank the National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency for providing financial support through the project P-10-11345, the Thailand’s Office of the Higher Education Commission through the National Research University (NRU) Project, and the Thailand Research Fund through the TRF Research Grant.
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