The reduction of silver nitrate to metallic silver inside polyaniline nanotubes and on oligoaniline microspheres

0345407 - ÚMCH 2011 RIV CH eng J - Journal Article
Trchová, Miroslava - Stejskal, Jaroslav
The reduction of silver nitrate to metallic silver inside polyaniline nanotubes and on oligoaniline microspheres.
Synthetic Metals. Roč. 160, 13-14 (2010), s. 1479-1486. ISSN 0379-6779. E-ISSN 0379-6779
R&D Projects: GA AV ČR IAA100500902; GA AV ČR IAA400500905; GA ČR GA203/08/0686; GA ČR GA202/09/1626
Institutional research plan: CEZ:AV0Z40500505
Keywords : aniline oligomers * conducting polymer * nanotubes
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 1.871, year: 2010

Polyaniline (PANI) reduces silver nitrate to metallic silver. Polyaniline bases having different morphologies – granular or nanotubular – and oligoaniline microspheres have been left to react with silver nitrate in acidic, neutral, and alkaline media. The content of silver, typically 20–30 wt.%, was determined by thermogravimetric analysis. The formation of silver inside PANI nanotubes has been observed. The highest conductivity, 943 S cm−1, was found with silver reduced by nanotubular PANI base in 0.1 M nitric acid at 17.3 wt.% silver content. Infrared and Raman spectroscopies have been used to study the changes in the molecular structure of the PANI bases of various morphologies before and after reaction with silver nitrate.
Permanent Link: http://hdl.handle.net/11104/0005947