| Autor: |
Fukada, Yukimasa, Aoyagi, Yumito, Yokoyama, Misaki, Horibe, Yoichi, Kano, Jun, Kaneda, Miyu, Fujii, Tatsuo, Yoshigoe, Akitaka, Kobata, Masaaki, Fukuda, Tatsuo, Yoshii, Kenji, Ikeda, Naoshi |
| Předmět: |
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| Zdroj: |
Journal of Electronic Materials; Jan2025, Vol. 54 Issue 1, p686-692, 7p |
| Abstrakt: |
Carbon nanowalls (CNWs) are densely packed multilayer graphene sheets oriented perpendicular to a substrate. We developed a simple method for synthesizing CNWs without hydrocarbon gas. It was found that CNWs are formed when carbon plasma, generated by the impact of argon plasma produced by a microwave generator on a carbon source, strikes a substrate. The quality, size, and interlayer distance of the multilayer graphene constituting the CNWs were characterized using Raman spectroscopy, scanning electron microscopy, and transmission electron microscopy. We attempted electrodeposition of Cs from an aqueous solution into CNWs and successfully adsorbed Cs into them. The result of X-ray photoelectron spectroscopy measurement indicated that Cs was adsorbed between the layers of graphene that constituted the CNWs. We also found that increasing the electrodeposition time resulted in qualitatively greater adsorption of Cs between the graphene layers. This adsorption effect may be beneficial for applications such as purifying wastewater containing the radioactive isotope 137Cs. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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