Advertisement

Electronic properties of polyaniline

  • A. Kuczkowski
Conference paper
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 78)

Abstract

We have investigated the electrical, thermoelectrical, and electrochemical properties of polyaniline (PANI) obtained by electrochemical oxidation of aniline hydrochloride. Van der Pauw’s, two electrode and four-probe conductivity (σ measurements were performed on compressed powder pellets of PANI equilibrated at different pH. PANI shows similar dependence of thermoelectric power (TEP) and log 1 / σ upon pH. At low pH the value of TEP was negative and low. At pH ∼2 TEP changes its sign from negative to positive and increasees with increasing pH. The temperature dependence of conductivity of PANI is closely matched by the expression for variable range hopping. A Hall mobility measurement test for PANI failed. The estimated value of the Hall mobility from this measurement was lower than 0.5 × 10−4m2/V.S. We have constructed a rechargeable Zn/aqueous ZnCl2+NH4Cl/PANI battery showing promising characteristics. Using PANI obtained by anodic oxidation of aniline hydrochloride.

Key words

Polyaniline conducting polymers polymer electrochemical batteries 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Mac Diarmid AG, Chiang JC, Richter AF, Epstein AJ (1987) Synth Met, in pressGoogle Scholar
  2. 2.
    Genies EM, Lapkowski M, Santier C, Vieil E (1987) Synth Met, in pressGoogle Scholar
  3. 3.
    Mac Diarmid AG, Halpern M, Krawczyk J, Mammone RJ, Mu SL, Sommasiri NLD, Wu WQ (1984) In: ICSM’ 84 Abano Terme Conference Abstracts Bulletin, p 32Google Scholar
  4. 4.
    Travers JP, Chroboczek J, Devreux F, Genoud F, Nechtschein M, Syed A, Genies EM, Tsintavis C (1985) Molec Cryst Liq Cryst 121:198CrossRefGoogle Scholar
  5. 5.
    Langer J (1984) Materials Sci X:173Google Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1998

Authors and Affiliations

  • A. Kuczkowski
    • 1
  1. 1.Faculty of Technical Physics and Applied MathematicsTechnical UniversityGdanskPoland

Personalised recommendations