The carbonization of colloidal polyaniline nanoparticles to nitrogen-containing carbon analogues

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 poly(N‐vinylpyrrolidone) or silica nanoparticles at 650 °C in inert atmosphere led, in b...

Full description

Saved in:
Bibliographic Details
Published in:Polymer international 2010-07, Vol.59 (7), p.875-878
Main Authors: Stejskal, Jaroslav, Trchová, Miroslava, Hromádková, Jir̆ina, Kovár̆ová, Jana, Kalendová, Andrea
Format: Article
Language:English
Subjects:
Applied sciences
Carbon
Carbonization
Chemical reactions and properties
Colloids
Composites
Degradation
Exact sciences and technology
Forms of application and semi-finished materials
Nanomaterials
Nanoparticles
Nanostructure
Organic polymers
Physicochemistry of polymers
polyaniline
Polyanilines
Polymer industry, paints, wood
Silicon dioxide
Technology of polymers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 poly(N‐vinylpyrrolidone) or silica nanoparticles at 650 °C in inert atmosphere led, in both cases, to nitrogen‐containing carbonaceous materials with specific surface areas of 200 and 205 m2 g−1, respectively, and conductivities of 8.3 × 10−7 and 1.9 × 10−10 S cm−1, respectively. The latter material contained 77 wt% of silica. The original particulate nanostructure of the samples was preserved after carbonization. The carbon‐to‐nitrogen atomic ratio was 7.2 and 7.9; the nitrogen content in the carbonized polyaniline–poly(N‐vinylpyrrolidone) particles was 10.8 wt%. Thermogravimetric analysis in air revealed their stability to be up to 500 °C. This is comparable with commercial multi‐wall carbon nanotubes, which have similar areas of application. The nitrogen‐containing 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 The carbonization of colloidal polyaniline nanoparticles stabilized with poly(N‐vinylpyrrolidone) or silica leads to nitrogen‐containing carbons having large surface areas. The original particulate nanostructure is preserved after carbonization
ISSN:0959-8103
1097-0126
1097-0126
DOI:10.1002/pi.2858