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- Title
The carbonization of colloidal polyaniline nanoparticles to nitrogencontaining carbon analogues.
- Authors
Jaroslav Stejskal; Miroslava Trchová; Jiina Hromádková; Jana Kováová; Andrea Kalendová
- Abstract
The carbonization of nanostructures afforded by conducting polymers represents a new route to the preparation of functional nanostructured carbons. The exposure of colloidal polyaniline particles stabilized with polyNvinylpyrrolidone or silica nanoparticles at 650 °C in inert atmosphere led, in both cases, to nitrogencontaining carbonaceous materials with specific surface areas of 200 and 205 m2g−1, respectively, and conductivities of 8.3 × 10−7and 1.9 × 10−10S cm−1, respectively. The latter material contained 77 wt of silica. The original particulate nanostructure of the samples was preserved after carbonization. The carbontonitrogen atomic ratio was 7.2 and 7.9; the nitrogen content in the carbonized polyaniline–polyNvinylpyrrolidone particles was 10.8 wt. Thermogravimetric analysis in air revealed their stability to be up to 500 °C. This is comparable with commercial multiwall carbon nanotubes, which have similar areas of application. The nitrogencontaining carbons are potentially useful as supports for catalysts and in applications where carbon of higher hydrophilicity would be of benefit. Copyright © 2010 Society of Chemical Industry
- Subjects
CARBONIZATION; NANOSTRUCTURES; POLYMERS; ANILINE; CARBON nanotubes
- Publication
Polymer International, 2010, Vol 59, Issue 7, p875
- ISSN
0959-8103
- Publication type
Article
- DOI
10.1002/pi.2858