Synthesis of Boron Nitride Microtubes and Formation of Boron Nitride Nanosheets |
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Authors: | Pervaiz Ahmad Yusoff Mohd Amin Ziaul Raza Khan |
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Affiliation: | Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia |
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Abstract: | Boron nitride microtubes are synthesized in a dual zone quartz tube furnace at 1200°C with ammonia as a reaction atmosphere. Field emission scanning electron microscopy (FE-SEM) results show a unique cone-like morphology of the tubes with larger internal space and thin walls structure. The diameters of the tubes were found to be in the range of 1 to ~2 µm with the walls thickness estimated to be from 10 to 100 nm. XPS survey shows N 1 s and B 1 s peaks at 398.7 and 191 eV, respectively, that represent h-BN in the sample. Raman spectroscopy indicates a high-intensity peak at 1372.53 (cm?1) that corresponds to the E2g mode of h-BN. Along with the novel tubular morphology of boron nitride microtubes, the present work also explains a mechanism for the formation of boron nitride nanosheets (from boron nitride microtubes) found in the FE-SEM results of the current sample. |
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Keywords: | BNMTs BNNTs CMTs CNTs CVD |
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