Electrical conductivity and thermal stability of polyaniline p-doped with perchloric acid and sulfuric acid at various concentrations

Authors

Earl Vincent B. Lagsa ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Flo Rykiel M. Ramos ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Malou D. Catedral ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Alvin Karlo G. Tapia ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Polyaniline doped with protonic acids, perchloric acid (HClO₄) and sulfuric acid (H₂SO₄) at various concentrations were investigated in terms of electrical conductivity and thermal stability at different temperatures 60°C, 90°C, 150°C and 190°C and various times for 60, 120, 180 and 240 minutes. It was found for both protonic acids that as the dopant concentration increases the electrical conductivity and thermal activation energy also increase. It was also found that the rate of decrease in electrical conductivity is more pronounced at temperatures 150°C and 190°C. PANi doped with perchloric acid is also found to have higher activation energies and appears to be more thermally stable compared to PANi doped with sulfuric acid. However, the latter is found to have higher electrical conductivity.

Downloads

Issue

2005: Proceedings of the 23rd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2005-2B-04

Section

Materials Science

Published

2005-10-26

How to Cite

[1]

EVB Lagsa, FRM Ramos, MD Catedral, AKG Tapia, and RV Sarmago, Electrical conductivity and thermal stability of polyaniline p-doped with perchloric acid and sulfuric acid at various concentrations, Proceedings of the Samahang Pisika ng Pilipinas 23, SPP-2005-2B-04 (2005). URL: https://proceedings.spp-online.org/article/view/SPP-2005-2B-04.