Dilip Nath, Veena Sahajwalla

Synthesis of Carbon Nanotubes

Fly ash as Catalyst

• Broschiertes Buch

Produktbeschreibung

We produced carbon nanotubes (CNTs) by pyrolysis of composite films of poly (vinyl alcohol) (PVA) with fly ash and physically/chemically modified fly ash at 500 °C for 10 min under a nitrogen flow of 2 L/min. Different geometrical structures, e.g.; knotted and twisted, U- and spiral-shaped, bamboo-shaped, rod, fiber and ribbon-shaped CNT materials were observed in the images of scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The widths of the CNT ribbons measured in TEM varied in the ranges 18 ~ 80 nm. X-ray photoelectron spectroscopy analysis showed five types of carbon binding peaks, C C/C H, C O H, C O C, C=O and O C=O with different percentages. The ratio of intensities of G and D bands, IG/ID show different values analysed by Raman Spectroscopy in relation with nature of fly ash particles. CNT materials grown on the surface of fly ash have potential for the fabrication of high-strength composite materials with polymer and metal.

Produktdetails

• Verlag: LAP Lambert Academic Publishing
• Seitenzahl: 116
• Erscheinungstermin: 30. September 2011
• Englisch
• Abmessung: 220mm x 150mm x 7mm
• Gewicht: 191g
• ISBN-13: 9783843323468
• ISBN-10: 3843323461
• Artikelnr.: 34207908

Autorenporträt

Dilip Nath, DEng, PhD- Research Associate, School of Materials Science and Engineering, The University of New South Wales, Australia. His other books are under the titles: ¿High Strength Polymer Fly ash Composites¿ and ¿Synthesis of Carbon Nanotubes¿. Prof. Takeshi Shiono, Department of Applied Chemistry, Hiroshima University, Japan.