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Electrochemistry and Ion Sensing Properties of Conducting Hydrogel Layers Based on Polypyrrole and Alkoxysulfonated Poly(3,4-ethylenedioxythiophene) (PEDOT-S)
Poznan University of Tech, Poland .
Abo Akad University, Finland .
Abo Akad University, Finland .
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
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2014 (English)In: Electroanalysis, ISSN 1040-0397, E-ISSN 1521-4109, Vol. 26, no 4, 739-747 p.Article in journal (Refereed) Published
Abstract [en]

Acidic aqueous solutions containing pyrrole and alkoxysulfonated PEDOT derivative (PEDOT-S) were found to undergo polymerization in the absence of an external oxidizing agent. The product was a nearly black-colored conducting hydrogel that after separation could be dispersed in water or acetone. The suspensions could be used to deposit cast films on a polycrystalline gold electrode. The polymer modified electrode showed a nearly Nernstian potentiometric response to Ag+ cations in the concentration range of 10(-5)-10(-1)M with the slope of 54mV/decade. The response was specific to Ag+ compared to a series of alkali and transition-metal cations (pK(Ag/M)greater than3.7).

Place, publisher, year, edition, pages
Wiley-VCH Verlag , 2014. Vol. 26, no 4, 739-747 p.
Keyword [en]
Polypyrrole; Ion selective electrodes; PEDOT-S; Autopolymerization
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-107457DOI: 10.1002/elan.201300487ISI: 000333749500010OAI: diva2:724311
Available from: 2014-06-12 Created: 2014-06-12 Last updated: 2015-05-29

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Inganäs, Olle
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Biomolecular and Organic ElectronicsFaculty of Science & EngineeringThe Institute of Technology
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