Ionic polymer metal composites with electrochemically active electrodes

Johanson, U.; Punning, A.; Aabloo, A. (2016). Ionic polymer metal composites with electrochemically active electrodes. In: RSC Smart Materials (215−227). Royal Society of Chemistry .10.1039/9781782622581-00215.
kogumikuartikkel/peatükk raamatus/kogumikus
Johanson, U.; Punning, A.; Aabloo, A.
  • Inglise
RSC Smart Materials
Royal Society of Chemistry
2046-0066
2016-January
17
2016
215227
Ilmunud
3.1. Artiklid/peatükid lisas loetletud kirjastuste välja antud kogumikes (kaasa arvatud Thomson Reuters Book Citation Index, Thomson Reuters Conference Proceedings Citation Index, Scopus refereeritud kogumikud)

Viited terviktekstile

dx.doi.org/10.1039/9781782622581-00215

Seotud asutused

University of Tartu

Lisainfo

Book Chapter © 2016 The Royal Society of Chemistry. The vast majority of the aqueous ionic polymer metal composite (IPMC) materials are fabricated with electrodes made of precious metals - gold or platinum. At first glance this may seem unreasonable, since there are several well-known metal plating methods using the substantially cheaper metals - copper or silver. In point of fact, an IPMC is a complicated electrochemical system in which the occurrence of the electrochemical processes depends on the applied voltage. In aqueous-based IPMCs, the electrolysis of water occurs at higher voltages. Due to the various electrochemical factors, the presence of a non-precious metal in an IPMC changes its behaviour drastically. On the one hand, it opens up new possibilities for better actuation. On the other hand, in the presence of non-precious metals, the unwanted side-reactions (e.g. the corrosion of electrodes) already occur at very low voltages. This chapter highlights the electrochemical aspect of IPMCs with electrodes made of precious metals as well as copper, silver, and nickel.