Controlled hydrothermal synthesis of VO2(B) nanobelts

Large-scale VO2(B) nanobelts have been synthesized by hydrothermal strategy via one-step method using V2O5 as vanadium source and C6H5–(CH2)n–NH2 with n = 2 and 4 (2-phenylethylamine and 4-phenylbutylamine) as structure-directing templates. The composition and morphology of the nanobelts were established by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). The as-obtained VO2(B) nanobelts have a length of 3–10 μm, a wideness of 100–375 nm and a thickness of 30–66 nm.