title: Carbon micro/nano spring structures in the absence of sulphurous promoter by CCVD method.
abstract: Carbon microcoils are generally prepared by catalytic chemical vapor deposition of acetylene, using Ni as the catalyst and thiophene as the promoter. In this work, a new catalyst has been developed on purpose to avoid the introducing of noxious and unpleasant thiophene during the reaction process. The products obtained at temperature of 740 degrees C were pure, regular and had perfect morphology. Scanning electron microscopy and Raman spectroscopy were employed to characterize the asprepared carbon microcoils.
authors.affiliation: Defence Materials and Stores Research and Development Establishment, Kanpur 208013, Uttar Pradesh, India.
authors.forename: Kingsuk
authors.initials: K
authors.lastname: Mukhopadhyay
authors.forename: D
authors.initials: D
authors.lastname: Porwal
authors.forename: K U Bhasker
authors.initials: KU
authors.lastname: Rao