The Cyclic Voltammetry of Pristine, Isomerized, Deuterated, and Partially Hydrogenated “P‐Type” Polyacetylene

1 September 1987

journal article
Published by The Electrochemical Society in Journal of the Electrochemical Society

Vol. 134 (9) , 2179-2187
https://doi.org/10.1149/1.2100848

Abstract

The cyclic voltammetry of ultrathin films of polyacetylene comprised of 2–3 nm microfibrils and their aggregate 20 nm fibrils in methylene chloride, acetonitrile, propylene carbonate, and sulfolane shows many similarities, including a background oxidation of electrolyte that leads to serious coulombic inefficiency in rechargeable polyacetylene battery applications. Reversible charging in neutral aqueous solution is limited by the poor separation between the reversible and irreversible oxidations. Comparison of ultrathin and free‐standing 100 μm thick films showed they have the same maximum reversible doping level and thus energy density of 280 Wh/kg. Pristine, isomerized, deuterated, and hydrogenated show similar electrochemistry. Both n and p‐type chemical doping caused isomerization of to .

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