,
Beilstein Arch. 2023, 20235. https://doi.org/10.3762/bxiv.2023.5.v1
Published 20 Jan 2023
The growth of carbon nanotubes (CNT) in flame requires imperative conditions that are difficult to achieve in a highly heterogeneous environment. Therefore, the analysis of the properties of the reaction zone within the flame is critical for the optimal growth of CNT. In the present study, a comprehensive comparison between the CNT synthesis using methane diffusion flame and that of premixed flame is conducted regarding the morphology and crystallinity of the as-grown nanotubes. The premixed burner configuration created a flame that isstabilized across axisymmetric stagnation flow through sintered metal, making the flame one-dimensional in nature as opposed to the co-flow configuration of diffusion flame. The significant difference in temperature distribution between the two flames causes the difference in the characteristic pattern of the growth products. In diffusion flame, the growth is limited to specific regions at certain height-above-burners (HAB) with suitable thermochemical conditions. The identified growth regions at different HAB showed similar temperature distribution that produces CNT of similar characteristics. In contrast with premixed flame, the growth of CNT dictates by only the HAB due to relatively uniform temperature distribution along the radial directions but significantly different in the vertical direction.
Keywords: Carbon nanotubes; flame synthesis; one-dimensional flame; morphology; crystallinity; synthesis control
When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:
Ibrahim, M. H.; Hamzah, N.; Mohd Yasin, M. F.; Mohd Yusop, M. Z.; Septiani, N. L. W. Beilstein Arch. 2023, 20235. doi:10.3762/bxiv.2023.5.v1
Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and
Zotero.
© 2023 Ibrahim et al.; licensee Beilstein-Institut.
This is an open access work licensed under the terms of the Beilstein-Institut Open Access License Agreement (https://www.beilstein-archives.org/xiv/terms), which is identical to the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0). The reuse of material under this license requires that the author(s), source and license are credited. Third-party material in this work could be subject to other licenses (typically indicated in the credit line), and in this case, users are required to obtain permission from the license holder to reuse the material.
