Electrochemical and electrical properties of poly(hexachlorobuta-1,3-diene), an electrochemically graphitized film

Abstract

Electroreduction of hexachlorobuta-1,3-diene in Bu₄NBF₄–CH₃CN forms an electroactive black film, PHCBD, with a graphitic structure on a glassy carbon electrode. The electrochemical and electrical properties of PHCBD were studied by cyclic voltammetry and a thin-layer twin-electrode cell technique, E⁰′=–0.4 V vs. Ag/Ag⁺, and an irreversible oxidation at E_{p, a}= 1.5 V. The former reaction is a reductive doping accompanied location inter-calation and the latter is an oxidative doping accompanied by anion intercalation. The conductivity of the PHCBD film is 10^–7–10^–6 S cm^–1 in the undoped state and 4 × 10^–4 S cm^–1 upon reductive or oxidative doping.