Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 113, Issue 18, Pages 7511-7515Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp810454f
Keywords
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Funding
- Japan Society for the Promotion of Science, SCOPE [19206024, 19054003]
- Ministry of Internal Affairs and Communications, NEDO (Japan) [051403009]
- MITI's Innovation Research Project on Nanoelectronics Materials and Structures
- Grants-in-Aid for Scientific Research [19054003, 19206024] Funding Source: KAKEN
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Addition of only 1% acetylene into ethanol was found to enhance the growth rate of single-walled carbon nanotubes (SWNTs) by up to 10-fold. This accelerated growth, however, only occurred in the presence of ethanol, whereas pure acetylene at the same partial pressure resulted in negligible growth and quickly deactivated the catalyst. The dormant catalyst could be revived by reintroduction of ethanol, indicating that catalyst deactivation is divided into reversible and irreversible stages. Since the thermal decomposition of ethanol also yields some amount of acetylene, the possible contribution to the formation of SWNTs from these decomposed gases is also discussed.
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