DC Electrical Conductivity Retention and Electrical Compensation of Polyaniline by TiO2 at Higher Loading Percentages in Polyaniline@TiO2 Nanocomposites

Title
DC Electrical Conductivity Retention and Electrical Compensation of Polyaniline by TiO2 at Higher Loading Percentages in Polyaniline@TiO2 Nanocomposites
Author(s)
조무환모드안사리M.M. Khan[M.M. Khan]사지드안자리
Keywords
VISIBLE-LIGHT ACTIVITY; THERMAL-STABILITY; NANOTUBE ARRAYS; BEHAVIOR
Issue Date
201507
Publisher
KOREAN INST METALS MATERIALS
Citation
ELECTRONIC MATERIALS LETTERS, v.11, no.4, pp.559 - 564
Abstract
Electrically conductive HCl-doped polyaniline (Pani)@titanium dioxide (TiO2) nanocomposites were prepared by the in-situ oxidative polymerization of aniline in the presence of different amounts of TiO2 nanoparticles. The synthesized Pani@TiO2 nanocomposites were characterized by transmission electron microscopy, X-ray dill action, UV-visible spectroscopy, and thermogravimetric analysis. The stability of the Pani@TiO2 nanocomposites in terms of their electrical conductivity retention was examined under isothermal and cyclic aging conditions, and compared with that of pure Pani. The Pani@TiO2 nanocomposites showed higher thermal stability than pure Pani. The effect of competitive doping/de-doping by TiO2 was examined at different Path to TiO2 weight ratios. TiO2 at a higher weight percentage was found to be involved in the de-doping type of interaction with Pani, leading to its neutralization, which was found to be similar to the de-doping phenomenon, as in the case of neutralization in basic media. The novel mechanism for this de-doping type of interaction of TiO2 with Path has also been proposed.
URI
http://hdl.handle.net/YU.REPOSITORY/31709http://dx.doi.org/10.1007/s13391-015-5073-2
ISSN
1738-8090
Appears in Collections:
공과대학 > 화학공학부 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE