High-quality single-walled carbon nanotubes synthesized by catalytic decomposition of xylene over Fe-Mo/MgO catalyst and their field emission properties
- Authors
- Zhang, Hui; Shin, Dong Hoon; Lee, Heon Sang; Lee, Cheol Jin
- Issue Date
- 6-Sep-2007
- Publisher
- AMER CHEMICAL SOC
- Citation
- JOURNAL OF PHYSICAL CHEMISTRY C, v.111, no.35, pp.12954 - 12959
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF PHYSICAL CHEMISTRY C
- Volume
- 111
- Number
- 35
- Start Page
- 12954
- End Page
- 12959
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/125709
- DOI
- 10.1021/jp071948j
- ISSN
- 1932-7447
- Abstract
- High-quality single-walled carbon nanotubes (SWCNTs) were synthesized over Fe-Mo/MgO catalyst by catalytic decomposition of xylene. The synthesized carbon material revealed bundled SWCNTs with few defects and amorphous carbon and revealed that the SWCNTs having diameters of about 0.84-1.60 nm dominated in the product. The product yield of the high-quality SWCNTs was about 63 wt % relative to the weight of the catalyst. The SWCNTs showed the low turn-on field 1.0 V/,mu m at a current density of 10-8 A/cm(2) and the high emission current density of 2.0 mA/cm(2) at an applied field of about 3.0 V/mu m. The lifetime measurement of SWCNT emitter revealed good emission stability for 20 h during constant DC applied bias. It is considered that the SWCNTs produced by xylene can be used as effective field emitters.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.