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Entrapping of inclusions within carbon nanotubes during catalytic decomposition of C2H4 on a “thick” nickel film

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Entrapping of inclusions within carbon nanotubes during catalytic decomposition of C2H4 on a “thick” nickel film
นักวิจัย : Li, Feng Ji , Zhang, Sam , Sun, Geng Zhi , Kong, Jun Hua , Rawat, R. S. , Ilyas, Usman , Li, Bo
คำค้น : DRNTU::Engineering::Materials.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Li, F. J., Zhang, S., Sun, G. Z., Kong, J. H., Rawat, R. S., Ilyas, U., et al. (2012). Entrapping of inclusions within carbon nanotubes during catalytic decomposition of C2H4 on a “thick” nickel film. Nanoscience and Nanotechnology Letters, 4(12), 1194-1202. , 1941-4900 , http://hdl.handle.net/10220/18933 , http://dx.doi.org/10.1166/nnl.2012.1478
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Nanoscience and nanotechnology letters
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

To understand the formation mechanism of catalyst inclusions in carbon nanotubes, multi-walled carbon nanotubes were grown via catalytic decomposition of C2H4 on a 50-nm-thick nickel film at 725 C. Atomic force microscopy, glancing incidence X-ray diffraction, field emission scanning electron microscopy, and high resolution transmission electron microscopy were employed to examine the evolution of the nickel film and the structure of the nanotubes. It was found that pretreating of the nickel film resulted in lots of small nanoparticles extruding on the surface, among big ones, serving as seeds for the growth of tubes. The inner walls of a few tubes were sealed internally by multiple elongated “beads-like,” “bullet-shaped” or “needle-shaped” nickel inclusions. The inclusions retained the face-centered-cubic crystalline structure of the as-sputtered nickel film. The entrapping of nickel inclusions is explained by a continuous tip growth model. A conservative upper limit of the nickel layer thickness (50 nm) was estimated for growing high purity carbon nanotubes.

บรรณานุกรม :
Li, Feng Ji , Zhang, Sam , Sun, Geng Zhi , Kong, Jun Hua , Rawat, R. S. , Ilyas, Usman , Li, Bo . (2555). Entrapping of inclusions within carbon nanotubes during catalytic decomposition of C2H4 on a “thick” nickel film.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Feng Ji , Zhang, Sam , Sun, Geng Zhi , Kong, Jun Hua , Rawat, R. S. , Ilyas, Usman , Li, Bo . 2555. "Entrapping of inclusions within carbon nanotubes during catalytic decomposition of C2H4 on a “thick” nickel film".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Feng Ji , Zhang, Sam , Sun, Geng Zhi , Kong, Jun Hua , Rawat, R. S. , Ilyas, Usman , Li, Bo . "Entrapping of inclusions within carbon nanotubes during catalytic decomposition of C2H4 on a “thick” nickel film."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Li, Feng Ji , Zhang, Sam , Sun, Geng Zhi , Kong, Jun Hua , Rawat, R. S. , Ilyas, Usman , Li, Bo . Entrapping of inclusions within carbon nanotubes during catalytic decomposition of C2H4 on a “thick” nickel film. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.