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Synthesis of Boron Nitride Nanotubes Using Plasma-Assisted CVD Catalyzed by Cu Nanoparticles and Oxygen

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Title: Synthesis of Boron Nitride Nanotubes Using Plasma-Assisted CVD Catalyzed by Cu Nanoparticles and Oxygen
Authors: Shiratori, Tatsuya Browse this author
Yamane, Ichiro Browse this author
Nodo, Shoto Browse this author
Ota, Ryo Browse this author
Yanase, Takashi Browse this author
Nagahama, Taro Browse this author →KAKEN DB
Yamamoto, Yasunori Browse this author
Shimada, Toshihiro Browse this author →KAKEN DB
Keywords: boron nitride nanotube
plasma chemical vapor deposition (CVD)
core-shell structure
Issue Date: Mar-2021
Publisher: MDPI
Journal Title: Nanomaterials
Volume: 11
Issue: 3
Start Page: 651
Publisher DOI: 10.3390/nano11030651
Abstract: We found that oxidized Cu nanoparticles can catalyze the growth of boron nitride nanotubes from borazine via plasma-assisted chemical vapor deposition. The Raman spectra suggest that the formation of thin-walled nanotubes show a radial breathing mode vibration. The presence of oxygen in the plasma environment was necessary for the growth of the nanotubes, and a part of the nanotubes had a core shell structure with a cupper species inside it. In atomic resolution transmission electron microscope (TEM) images, Cu2O was found at the interface between the Cu-core and turbostratic BN-shell. The growth mechanism seemed different from that of carbon nanotube core-shell structures. Therefore, we pointed out the important role of the dynamic morphological change in the Cu2O-Cu system.
Type: article
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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