Synthesis of Carbon Nanotubes: Fly ash as Catalyst - Couverture souple

Nath, Dilip; Sahajwalla, Veena

Couverture souple

ISBN 10 : 3843323461 ISBN 13 : 9783843323468

Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

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.

A propos du livre

À propos de l'auteur

Dilip Nath, DEng, PhD- Research Associate, School of Materials Science and Engineering, The University of New South Wales, Australia. He published another book under title, “High Strength Polymer Fly ash Composites: Fundamental Understanding”. Scientia Prof. Veena Sahajwalla, Director, SMaRT, School of Materials Science and Eng. UNSW

Détails de l'édition

• Éditeur: LAP LAMBERT Academic Publishing
• Date d'édition: 2011
• Langue: anglais
• ISBN 10: 3843323461
• ISBN 13: 9783843323468
• Reliure: Broché
• Nombre de pages: 116
• Coordonnées du fabricant: non disponible
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