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Polypyrrole free‐standing electrodes sense temperature or current during reaction
Author(s) -
Valero Laura,
AriasPardilla Joaquin,
Smit Mascha,
CauichRodríguez Juan,
Otero Toribio F
Publication year - 2010
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.2750
Subject(s) - polypyrrole , electrochemistry , electrolyte , materials science , electrode , aqueous solution , conductive polymer , activation energy , cathodic protection , redox , polymer , chemical engineering , inorganic chemistry , chemistry , composite material , metallurgy , engineering
The electrochemical activity of self‐supported thick (70 µm) polypyrrole films electrogenerated in a mixed electrolyte of dodecylbenzenesulfonic acid and LiClO 4 was studied in aqueous solutions of LiClO 4 . This material inhibits hydrogen evolution up to cathodic potentials of −3.0 V versus Ag/AgCl. During oxidation or reduction reactions under galvanostatic conditions, the electrical energy consumed for a constant charge is a function of either the working temperature or the flowing current. As a consequence any electrochemical device, moreover artificial muscles, constructed with reactive conducting polymers is expected to work simultaneously as a sensor of the working temperature. Copyright © 2010 Society of Chemical Industry