Glass fabrics self-cracking catalytic growth of boron nitride nanotubes
Abstract Glass fabrics were used to fabricate boron nitride nanotubes (BNNTs) with a broad diameter range through a combined chemical vapor deposition and self-propagation high-temperature synthesis (CVD-SHS) method at different holding times (0min, 30min, 90min, 180min and 360min). SEM characterization has been employed to investigate the macro and micro structure/morphology changes of the glass fabrics and BNNTs in detail. SEM image analysis has provided direct experimental evidences for the rationality of the optimized self-cracking catalyst VLS growth mechanism, including the transformation situations of the glass fabrics and the BNNTs growth processes respectively. This paper was the further research and compensation for the theory and experiment deficiencies in the new preparation method of BNNTs reported in our previous work. In addition, it is likely that the distinctive self-cracking catalyst VLS growth mechanism could provide a new idea to preparation of other inorganic functional nano-materials using similar one-dimensional raw materials as growth templates and catalysts. Highlights Glass fabrics were used to preparation of BNNTs by a CVD-SHS method. Structure and morphology changes of the glass fabrics and BNNTs were studied. Direct SEM Evidences for self-cracking catalytic growth of BNNTs were provided. The optimized self-cracking catalyst VLS growth mechanism was also proposed. Graphical abstract Glass fabrics were used to preparation of BNNTs with a broad diameter distribution through a new CVD-SHS method at the different holding times. The corresponding SEM images have provided direct experimental evidences for the rationality of the optimized self-cracking catalyst VLS growth mechanism (including the transformation situations of the glass fabrics and the BNNTs growth processes respectively). [DISPLAY OMISSION]
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- DOI : http://dx.doi.org/10.1016/j.solidstatesciences.2016.12.001
- Elsevier : 저널> 권호 > 논문
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