Carbon Nanotube‐Polypyrrole Composite Electrode Materials Produced In Situ by Electron Bombardment in Radio‐Frequency Plasma Afterglows. Issue 3 (27th December 2013)

• Record Type: Journal Article
• Authors: Vandsburger, Leron; Coulombe, Sylvain; Meunier, Jean‐Luc
• Is Part Of: Plasma processes and polymers. Volume 11:Issue 3(2014:Mar.)
• Page Start: 222
• Page End: 231
• Publication Date: 2013-12-27
• Subjects: Plasma polymerization -- Periodicals; Plasma-enhanced chemical vapor deposition -- Periodicals; Plasma chemistry -- Periodicals
• DOI: 10.1002/ppap.201300114
• Languages: English
• ISSNs: 1612-8850

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="ppap201300114-sec-0001" sec-type="section"> <p>Free electrons, produced in radio‐frequency (13.56 MHz) glow discharges of O₂, N₂, and Ar, are recruited to multi‐walled carbon nanotubes (MWNTs) by a positive electric field. Electron bombardment degradation is restricted to the tips of the MWNTs. SEM images show that a surface deposited layer develops during degradation. Gas phase plasma reactions form polycyclic aromatic hydrocarbons and plasma polymers, which are re‐deposited on the MWNTs as thin films. The plasma polymer is identified as a polypyrrole (PPy)‐like plasma polymer, as shown by molecular optical absorption spectroscopy and GC–MS. FT‐IR spectra confirm that the surface films are composed of the same plasma polymer. Inert gas plasmas produce higher‐molecular weight plasma polymers, while O₂ plasma treatments produce over‐oxidized polypyrrolic‐plasma polymer films.<inline-graphic xlink:href="ark:/27927/pgg4sxzdrkc" content-type="ppap201300114-gra-0001" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </sec> </abstract>