Synthesis of PZT-CNT Hybrid Nanotubes by Sol-gel Method

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Falsafi, Mohammad | 2011

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 43017 (07)
University: Sharif University of Technology
Department: Materials Science and Engineering
Advisor(s): Mohammadi, Mohammad Reza; Seyyed Reyhani, Morteza
Abstract:
In this research, the surface of multi-walled carbon nanotubes (CNTs), as template, were coated by Lead zirconate titanate (PZT) with composition of Pb(Zr0.52Ti0.48)O3 via sol-gel process. The final product is called PZT-CNT hybrid material. For functionalizing of CNTs, benzyl alcohol was used. Simultaneous thermal analysis (STA) proved that the as-derived amorphous material crystallized at 520 ˚C. Scanning Electron Microscope (SEM) images verified the deposition of a uniform coating of PZT on the surface of CNTs and proved that the functionalizing treatment was done successfully. X-ray diffraction (XRD) showed that the crystal structure of the hybrid was tetragonal perovskite. Energy-dispersive spectroscopy (EDS) of the product showed that the final product consisted of Pb, Zr, Ti and O elements. It was found that the final hybrid nanotubes had length of 10 μm, with diameter in the range 160-180 nm and wall thickness around 40-50 nm
Keywords:
Hybrid Nanotubes ; Sol-Gel Method ; Carbon Nanotubes ; Lead Zirconate Titanate (PZT) ; X Ray Diffraction

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