Vertically Aligned Single-Walled Carbon Nanotube Growth from Ir Catalysts by Alcohol Gas Source Method
| Autor: | Takuya Okada, Takahiro Maruyama, Takahiro Saida, Shigeya Naritsuka |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Catalytic chemical vapor deposition Alcohol 02 engineering and technology Carbon nanotube 010402 general chemistry 01 natural sciences law.invention Catalysis symbols.namesake chemistry.chemical_compound law General Materials Science Metal catalyst Ethanol Mechanical Engineering 021001 nanoscience & nanotechnology Condensed Matter Physics Growth time 0104 chemical sciences chemistry Chemical engineering Mechanics of Materials symbols 0210 nano-technology Raman spectroscopy |
| Zdroj: | MRS Advances. 4:225-230 |
| ISSN: | 2059-8521 |
| DOI: | 10.1557/adv.2019.155 |
| Popis: | We demonstrated that single-walled carbon nanotubes (SWCNTs) grew from Ir catalysts by an alcohol catalytic chemical vapor deposition (ACCVD) method using a gas source-type CVD system. At an ethanol pressure of 1×10−1 Pa at 800°C, vertically aligned SWCNTs (VA-SWCNTs) were grown on SiO2/Si substrates. As the growth time became longer, the VA-SWCNT became thicker, and it reached almost 5 µm for a growth time of 180 min. The Raman spectroscopy results showed that the diameters of the grown SWCNTs were mainly distributed below 1.1 nm, indicating that the SWCNTs grown from Ir catalysts had small diameters compared with those from other metal catalysts. |
| Databáze: | OpenAIRE |
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