Synthesis of boron nitride nanostructures from catalyst of iron compounds via thermal chemical vapor deposition technique |
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Affiliation: | 1. Division of Advanced Materials Engineering, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea;2. Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea;3. School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea;4. Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi 15588, Republic of Korea;5. Department of Applied Physics and Institute of Natural Sciences, Kyung Hee University, Yongin, Gyeonggi 17104, Republic of Korea;6. Hydrogen and Fuel Cell Research Center, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea |
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Abstract: | For the first time, patterned growth of boron nitride nanostructures (BNNs) is achieved by thermal chemical vapor deposition (TCVD) technique at 1150 °C using a mixture of FeS/Fe2O3 catalyst supported in alumina nanostructured, boron amorphous and ammonia (NH3) as reagent gas. This innovative catalyst was synthesized in our laboratory and systematically characterized. The materials were characterized by X-ray diffraction (XRD), Raman spectroscopy, Fourier-transform infrared spectroscopy (FTIR), Thermogravimetric analysis (TGA), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The X-ray diffraction profile of the synthesized catalyst indicates the coexistence of three different crystal structures showing the presence of a cubic structure of iron oxide and iron sulfide besides the gamma alumina (γ) phase. The results show that boron nitride bamboo-like nanotubes (BNNTs) and hexagonal boron nitride (h-BN) nanosheets were successfully synthesized. Furthermore, the important contribution of this work is the manufacture of BNNs from FeS/Fe2O3 mixture. |
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Keywords: | Boron nitride nanotubes Hexagonal boron nitride Nanosheets Catalyst Solvothermal decomposition |
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