Water uptake in the hydrophilic poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) solid-contact of all-solid-state polymeric ion-selective electrodes

The Analyst ◽  
2011 ◽  
Vol 136 (16) ◽  
pp. 3252 ◽  
Author(s):  
Jean-Pierre Veder ◽  
Roland De Marco ◽  
Graeme Clarke ◽  
San Ping Jiang ◽  
Kathryn Prince ◽  
...  
RSC Advances ◽  
2019 ◽  
Vol 9 (29) ◽  
pp. 16713-16717 ◽  
Author(s):  
Kaikai Liu ◽  
Xiaojing Jiang ◽  
Yuehai Song ◽  
Rongning Liang

For the first time, a general and facile approach for the robust fabrication of nanomaterial-based solid contact ISEs is reported.


2019 ◽  
Vol 11 (2) ◽  
pp. 156
Author(s):  
Johannes Schwarz ◽  
Ute Enseleit ◽  
Kathrin Trommer ◽  
Michael Mertig

Robust and easy-to-handle ion-selective electrodes in all-solid-state configurations based on graphite paste have been developed for applications in environmental samples. The electrode consists of different functional layers (graphite paste, conducting polymer, ion-selective membrane). The ion-selective compounds have been incorporated in polyvinylchloride (PVC) membranes. Polypyrrole (PPy) acts as a solid contact and an intermediate layer between the ion-selective membrane and the graphite paste. As ion-complexing compounds tridodecylmethylammonium nitrate (TDMA-NO3) for nitrate, N,N,N’,N’-tetra[cyclohexyl]diglycolic acid diamide and N,N-dicyclohexyl-N‘,N‘-dioctadecyl-diglycolic diamide for calcium(II) determinations have been used. The electrodes have been tested in drinking and well water samples by direct potentiometric determination and by titrations. The results have been compared to ion chromatography as the reference method. Both ion selective electrodes exhibit linear response from 10-5 mol/L to 10-1 mol/L respectively. The detection limits for the target ions are below 10-6 mol/L based on the respective ion.


The Analyst ◽  
2017 ◽  
Vol 142 (20) ◽  
pp. 3857-3866 ◽  
Author(s):  
Shinichi Komaba ◽  
Tatsuya Akatsuka ◽  
Kohei Ohura ◽  
Chihiro Suzuki ◽  
Naoaki Yabuuchi ◽  
...  

Ion sensor performance is highly improved by the installation of insertion materials applied in rechargeable Li, Na, and K batteries.


2021 ◽  
Vol 11 (12) ◽  
pp. 5549
Author(s):  
You Wang ◽  
Siyuan Ma ◽  
Hongqun Zou ◽  
Zhenyu Wu ◽  
Zhiyuan Luo ◽  
...  

Protoporphyrin IX-based all-solid-state choline (Ch) ion-selective electrodes (ISEs) were fabricated and characterized. Poly (3,4-ethylene dioxythiophene) doped with poly (styrene sulfonate) (PEDOT/PSS) functioning as an ion-to-electron transducer was electropolymerized on the gold wire (0.5 mm diameter). The conductive polymer was covered with a Ch selective membrane containing protoporphyrin IX as an ionophore, which exhibited a lower detection limit of 0.49 μM with the potentiometric method. The Ch sensor performed a wide linear range from 1 μM to 1 mM, a fast response time of less than 5 s, and a decent selectivity of common inorganic and organic ions in the human body. Characteristics such as pH and temperature stability, life span, reproducibility and repeatability were also investigated to be satisfied. With the background of artificial cerebrospinal fluid, the recovery rate in 10−5 M of Ch solution was measured by the standard addition method, revealing the potential for biological application.


2020 ◽  
Vol 24 (11-12) ◽  
pp. 2975-2983 ◽  
Author(s):  
Tingting Han ◽  
Zekra Mousavi ◽  
Ulriika Mattinen ◽  
Johan Bobacka

Abstract The chronoamperometric and coulometric response of solid contact ion-selective electrodes (SCISEs) for the detection of divalent cations was investigated in order to provide a more complete description of the mechanism of the recently introduced coulometric transduction method for SCISEs. The coulometric transduction method has earlier been employed only for SCISEs that were selective to monovalent ions. The SCISEs utilized poly(3,4-ethylenedioxythiophene) (PEDOT) doped with poly(styrene sulfonate) (PSS−) as the solid contact (ion-to-electron transducer). PEDOT(PSS) was electrodeposited on glassy carbon and covered with plasticized PVC-based ion-selective membranes (ISMs) that were selective towards divalent cations (Ca2+, Pb2+). In contrast to earlier studies, the results obtained in this work show that the coulometric response for the Pb2+-SCISE was limited mainly by ion transport in the PEDOT(PSS) layer, which was not the case for the Ca2+-SCISE, nor was it observed earlier for the monovalent ions. The exceptional behavior of the Pb2+-SCISE was explored further by electrochemical impedance spectroscopy, and it was shown that the effective redox capacitance of PEDOT(PSS) was significantly higher for the Pb2+-SCISE than for the Ca2+-SCISE although the polymerization charge of PEDOT(PSS) was the same. The slow transport of Pb2+ in PEDOT(PSS) was tentatively related to complexation between Pb2+ and PEDOT(PSS).


2021 ◽  
Author(s):  
Jie Liang ◽  
Hongwei Sheng ◽  
Qi Wang ◽  
Jiao Yuan ◽  
Xuetao Zhang ◽  
...  

Flexible transparent supercapacitors (FTSC) are essential for the development of next-generation transparent electronics, however, a significant challenge is to achieve high-areal-capacitance FTSCs without sacrificing optical transparency. Herein, poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate)...


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