Synthesis, structural, optical and electrical properties of IN-SITU synthesized polyaniline/silver nanocomposites

Fahad Alam, Sajid Ali Ansari, Wasi Khan, M. Ehtisham Khan, A. H. Naqvi

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Polyaniline (PANI) is recognized as one of the most important conducting polymers due to its high conductivity and good stability. In this paper, polyaniline/silver (PANI/Ag) nanocomposites were synthesized by in-situ polymerization of aniline using ammonium peroxydisulphate (APS) as oxidizing agent with varying concentration of Ag nanoparticles colloids (0 ml, 25 ml and 50 ml). Silver nanoparticles were synthesized separately in colloidal form from silver nitrate (Ag2NO3) with the help of reducing agent sodium borohydride (NaBH4). The PANI/Ag nanocomposites were characterized by XRD, SEM, AFM, UV-visible, temperature dependent resistivity and dielectric measurements. All samples show a single phase nature of the nanoparticles. The electrical resistivity as function of temperature was measured in the temperature range 298383 K, which indicates a semiconducting to metallic transition at 373 K and 368 K for 25 ml and 50 ml silver colloid samples, respectively. © 2012 World Scientific Publishing Company.
Original languageEnglish (US)
JournalFunctional Materials Letters
Volume5
Issue number3
DOIs
StatePublished - Sep 1 2012
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-23

ASJC Scopus subject areas

  • General Materials Science

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