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Multiwalled carbon nanotubes (MWCNTs)/ZnO heterostructures were synthesized by two different processes: (1) gas-phase transport (GPT) and nucleation of Zn powders and (2) solution-phase transport (SPT) chemical reaction of zinc nitrate solution on the MWCNTs. Transmission electron microscopy and X-ray diffraction analysis indicated that the ZnO nanostructures on the MWCNTs from the GPT and SPT processes...
We have successfully synthesized various SnO2 nanostructures on p-type Si (100) substrates via three different processes: (1) using an as-deposited Au thin-film catalyst, (2) by adjusting the particle size of the Au catalyst via annealing treatment, and (3) without using any Au catalyst. Scanning electron microscopy images indicate that nanostructures processed by methods (1) and (2) show wire-like...
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