Critical assessment of graphene as ion-to-electron transducer for all-solid-state potentiometric sensors

被引：38

作者：

Jaworska, Ewa ^{[1
]}

Lewandowski, Wiktor ^{[1
]}

Mieczkowski, Jozef ^{[1
]}

Maksymiuk, Krzysztof ^{[1
]}

Michalska, Agata ^{[1
]}

机构：

[1] Warsaw Univ, Dept Chem, PL-02093 Warsaw, Poland

来源：

TALANTA | 2012年 / 97卷

关键词：

Graphene; Solid contact; Potentiometric sensors; Ion-selective electrodes; SELECTIVE ELECTRODES; POLY(VINYL CHLORIDE); POTENTIAL STABILITY; MEMBRANE ELECTRODES; CARBON NANOTUBES; WATER-UPTAKE; CONTACT; POLY(3,4-ETHYLENEDIOXYTHIOPHENE); NANOPARTICLES; POLYANILINE;

D O I：

10.1016/j.talanta.2012.04.054

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Carboxy-functionalized graphene was used as a solid contact for potassium ion-selective electrodes with poly( vinyl chloride) based membrane. Transducer layers were obtained simply by application of a dispersion of graphene derivative in water. Analytical performance of thus obtained sensors was compared with that of all-solid-state sensors with typical transducer materials: poly(octylthiophene) applied as chloroform solution, conducting polymers available as aqueous dispersions of poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) ions or polyaniline. It was found that all sensors tested were characterized with similar analytical parameters. Carboxy-functionalized graphene contact layer was in some respect similar to polyaniline one, what most probably results from the presence of pH sensitive groups in both materials. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：414 / 419

页数：6

共 45 条

[1] Potential stability of all-solid-state ion-selective electrodes using conducting polymers as ion-to-electron transducers [J].