An Electrochemical Study of Bulk and Nanowire Morphologies of Electrodeposited Polypyrrole | Zendy

Karen M. Herdman | Zendy; Carmel B. Breslin | Zendy

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An Electrochemical Study of Bulk and Nanowire Morphologies of Electrodeposited Polypyrrole

Author(s) -

Karen M. Herdman,

Carmel B. Breslin

Publication year - 2014

Publication title -

ecs transactions

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.235

H-Index - 52

eISSN - 1938-6737

pISSN - 1938-5862

DOI - 10.1149/05825.0051ecst

Subject(s) - polypyrrole , dielectric spectroscopy , materials science , nanowire , electrochemistry , electrode , electrolyte , conductive polymer , chemical engineering , pyrrole , polymer , nanotechnology , polymerization , composite material , chemistry , organic chemistry , engineering

Pyrrole was electrochemically polymerised onto gold electrodes at a fixed potential of 0.80 V vs. SCE to generate polypyrrole (PPy). Depending on the pH of the solution, PPy, was deposited in either a bulk or nanowire conformation. Electrochemical impedance spectroscopy, EIS, experiments were subsequently carried out on a bare gold electrode, PPy nanowires and bulk PPy of two different film surface areas. The impedance data were analysed using equivalent circuits giving information on the electrochemical properties of the polymers. The influence of different electrolytes on the impedance was also examined

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