| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Boeva, Zhanna
Åbo Akademi University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2020Electrochemical synthesis of 3D microstructured composite films of poly(3,4-ethylenedioxythiophene) and reduced nanographene oxidecitations
- 2020Electrospinning of Electroconductive Water-Resistant Nanofibers of PEDOTPSS, Cellulose Nanofibrils and PEO: Fabrication Characterization, and Cytocompatibilitycitations
- 2020Electrospinning of Electroconductive Water-Resistant Nanofibers of PEDOTPSS, Cellulose Nanofibrils and PEO: Fabrication Characterization, and Cytocompatibilitycitations
- 2019Reduced graphene oxide as water, carbon dioxide and oxygen barrier in plasticized poly(vinyl chloride) films
- 2017Improved water barrier properties of polylactic acid films with an amorphous hydrogenated carbon (a-C:H) coatingcitations
- 2016Few-layer graphene and polyaniline composite as ion-to-electron transducer in silicone rubber solid-contact ion-selective electrodescitations
- 2015Application of composites of graphene derivatives and conducting polymers in solid-state electrochemical sensors
- 2014Dispersible composites of exfoliated graphite and polyaniline with improved electrochemical behaviour for solid-state chemical sensor applicationscitations
- 2014Electrochemical synthesis of poly(3,4-ethylenedioxythiophene) in aqueous dispersion of high porosity reduced graphene oxidecitations
Places of action
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article
Few-layer graphene and polyaniline composite as ion-to-electron transducer in silicone rubber solid-contact ion-selective electrodes
Abstract
We have used for the first time a composite consisting of few-layer exfoliated graphene and electri-cally conducting polyaniline (PANI) as the ion-to-electron transducer (solid-contact) in Ca<sup>2+</sup>-selectivesolid-contact electrodes (CaSCISEs). The drop cast transducer deposited from the graphene–PANI dis-persion in N-methylpyrrolidone makes use of the synergistic effect of these two materials. It maintainsthe ion-to-electron transduction which is characteristic for the electrically conducting polymers (ECP),but in addition, graphene improves the reproducibility of the standard potential of the SCISEs comparedto the neat PANI based electrodes and increases the hydrophobicity of the transducer (ca. 30<sup>◦</sup> higherwater contact angle) which counteracts the water layer formation. Our results reveal that the incorporation of few-layer graphene in the transducer layer improved also the initial potential stability and theresponse characteristics of the CaSCISEs due to the electrocatalytic effect of the graphene–ECP composite, which facilitates the electron transfer at the transducer/substrate interface. We obtained a potentialreproducibility of only ±4 mV (n = 3) for the CaSCISEs having graphene–PANI as the solid-contact. The CaSCISEs in this study had a detection limit of 5 × 10<sup>−8</sup> M Ca<sup>2+</sup>, which was obtained without any sophisticated pre-treatment protocols.