Abstract
In this research study for the firsttime zirconium doped vanadium oxide nanotubes (VONTs) were synthesized. Zr-doped VONTs were performed by using hydrothermal method. Zr-VONTs prepared 0.02 wt%. The structure and morphology of the nanotubes were investigated by x- ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). In contrast to the undoped VONTs, the interlayer distance between oxide layers in the (V<sub>0.98</sub>Zr<sub>0.02</sub> ) <sub>x</sub> ONTs increases owing to replacement of some V in nanotubes by Zr with a large ionic radius. The results showed that zirconium 0.02wt% doped VONTs complately and the doping Zr into VONTs leads to increasing interlayer distances.
Highlights
Synthesis of different kinds of nanotubes as Inorganic nanotubes were considering after the discovery of carbon nanotubes [1]
The scanning electron microscopy (SEM) images indicated that the V0.98 Zr0.02 ONTs have tubular morphology
The sample is multiwall nanotubes and the average length of the Zr -vanadium oxide nanotubes (VONTs) is larger than 1μm
Summary
Synthesis of different kinds of nanotubes as Inorganic nanotubes were considering after the discovery of carbon nanotubes [1]. One inorganic nanotubes (WS2) synthesized in 1992 [2], (MoS2) in 1993 [3], (BN), (Sio2) 1995 [4, 5], (Tio2), (VOx) in 1998 [6, 7], (Nicl2), (NbSe2) in 2000 [8, 9], etc. Methods for synthesizing inorganic nanotubes, together simulations of their structure and predictions of their properties, have been reviewed by Ivanovski [10]. Spahr et al [12] first synthesized redox active vanadium oxide, using vanadium alkoxide as a precursor while primary amines as structure directing agants. Nanotubular vanadium oxides were successfully synthesized by V2O5 or VOCl3 precursors [13] and aromatic amine structure directing agant [14]. Inorganic nanotubes have potential application in catalytic processes and electrochemical properties [15, 16]. Vanadium oxide nanotubes is similar to that of carbon nanotubes discovared by Iijima in 1991 [1]
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