Abstract
The orthorhombic molybdenum trioxide (α-MoO3) nanobelts and polyvinyl pyrrolidone (PVP) surfactant MoO3 nanobelts with high quality were prepared through hydrothermal synthesis. The morphology and microstructure of the samples were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The nanobelts with rectangular cross-section have an orthorhombic phase structure, preferentially grow in [001] direction. The results showed that the H atoms in polyvinyl pyrrolidone are H-bonded with the O atoms in the MoO bonds of MoO3 nanobelts. When MoO3 is modified by the intercalation of PVP, it is effectively shielded against electrostatic interaction between the MoO3 interlayer and Li+ ions. The specific capacity of pure MoO3 nanobelts battery and (PVP)0.2MoO3 nanobelts exhibit as 195 mAh g−1 and 237 mAh g−1, respectively after 14 cycles, suggests that the stability of surfactant material is worthy.
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