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Synthesis of Carbon Nanotubes by Plasma-Enhanced Chemical Vapor Deposition Using Fe1-xMnxO Nanoparticles as Catalysts: How Does the Catalytic Activity of Graphitization Affect the Yields and Morphology?

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Title: Synthesis of Carbon Nanotubes by Plasma-Enhanced Chemical Vapor Deposition Using Fe1-xMnxO Nanoparticles as Catalysts: How Does the Catalytic Activity of Graphitization Affect the Yields and Morphology?
Authors: Yanase, Takashi Browse this author
Miura, Takuya Browse this author
Shiratori, Tatsuya Browse this author
Weng, Mengting Browse this author
Nagahama, Taro Browse this author →KAKEN DB
Shimada, Toshihiro Browse this author →KAKEN DB
Keywords: carbon nanotube
plasma-enhanced chemical vapor deposition
Fe1-xMnxO nanoparticle
Issue Date: Sep-2019
Publisher: MDPI
Journal Title: C-journal of carbon research
Volume: 5
Issue: 3
Start Page: 46
Publisher DOI: 10.3390/c5030046
Abstract: The choice of a catalyst for carbon nanotube (CNT) growth is critical to controlling the morphology and chirality of the final product. Plasma-enhanced chemical vapor deposition (PECVD) can alleviate the requirements of the catalyst, i.e., they must be active for both the decomposition of the source gas and graphitization in the conventional thermal CVD. However, it is still not well understood how the catalytic activity of the graphitization affects the yield and quality of CNTs. In this paper, we systematically investigated the influence of the catalytic activity of graphitization by tuning the composition of Fe1-xMnxO (x = 0-1) nanoparticles as catalysts. As the Mn component increased, the number of CNTs decreased because Mn has no catalytic function of the graphitization. The quality of CNTs also affected by the inclusion of the Mn component. Our study may provide useful information to develop a new catalyst for CNT growth in PECVD.
Rights: © 2019 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/).
https://creativecommons.org/licenses/by/4.0/
Type: article
URI: http://hdl.handle.net/2115/76018
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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