Synthesis and characterization of high-integrity solid-contact polymeric ion sensors

Roland De Marco; E Jee; K Prince; E Pretsch; Eric Bakker

doi:10.1007/s10008-008-0600-9

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Synthesis and characterization of high-integrity solid-contact polymeric ion sensors

Journal article

Open access

Peer reviewed

Synthesis and characterization of high-integrity solid-contact polymeric ion sensors

Roland De Marco, E Jee, K Prince, E Pretsch and Eric Bakker

Journal of Solid State Electrochemistry: current research and development in science and technology, Vol.13(1), pp.137-148

2009

DOI: https://doi.org/10.1007/s10008-008-0600-9

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Abstract

solid contact ion-selective electrode

conductive polymer

surface analysis

polymeric membrane ion-selective electrode

High-integrity solid-contact (SC) polymeric ion sensors have been produced by using spin casting and electropolymerization techniques in the preparation of the SC employing the conductive polymer, poly(3-octylthiophene) (POT). The physical and chemical integrity of the POT SCs have been evaluated using scanning electron microscopy (SEM), atomic force microscopy (AFM), secondary ion mass spectrometry (SIMS), and X-ray photoelectron spectroscopy (XPS). Furthermore, the electrochemical stability of SC polymeric ion sensors has been investigated using electrochemical impedance spectroscopy (EIS). The results of this study demonstrate that electropolymerization and spin casting methods also comprising annealing of the synthesized SC film are capable of producing SCs that are relatively free of imperfections such as pores and pinholes. This leads to electrochemically stable and robust polymeric ion sensors where the SC/sensor interface is resistant to the formation of a detrimental water layer that normally gives rise to spurious ion fluxes and a degradation in the sensitivity and selectivity of the SC polymeric ion sensor.

Details

Title: Synthesis and characterization of high-integrity solid-contact polymeric ion sensors
Authors: Roland De Marco (Author) - Curtin University of Technology
E Jee (Author) - Curtin University of Technology
K Prince (Author) - Australian Nuclear Science and Technology Organization (ANSTO)
E Pretsch (Author) - Institute of Biogeochemistry & Pollutant Dynamics Zurich, Switzerland
Eric Bakker (Author) - Curtin University of Technology
Publication details: Journal of Solid State Electrochemistry: current research and development in science and technology, Vol.13(1), pp.137-148
Publisher: Springer
Date published: 2009
DOI: 10.1007/s10008-008-0600-9
ISSN: 1432-8488
Copyright note: Copyright © Springer-Verlag 2009. The author's accepted version is reproduced here in accordance with the publisher's copyright policy. The final publication is available at www.springerlink.com
Organisation Unit: University of the Sunshine Coast, Queensland; Office of the Deputy Vice-Chancellor (Research and Innovation)
Language: English
Record Identifier: 99449220102621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Electrochemistry