Polythiophene and its derivatives –Based nanocomposites in electrochemical sensing: A mini review

AL-Refai, Hanaa H.; Ganash, Aisha A.; Hussein, Mahmoud A.

doi:10.1016/j.mtcomm.2020.101935

Cited by 36 publications

(16 citation statements)

References 63 publications

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“…Electroactive polymers such as polythiophene, polypyrrole, poly(3,4-ethylenedioxythiophene), polyaniline, , polyfuorene, poly(5-aminoquinoline), poly( o -toluidine), and their derivatives have attracted considerable interest . The optical, chemical, electronic, and mechanical features of these polymer films render them suitable candidates for possible applications in chemical sensors, corrosion protection, electrochromic devices, supercapacitors, energy storage, and artificial muscles .…”

Section: Introductionmentioning

confidence: 99%

Voltammetric Determination of Hg²⁺, Zn²⁺, and Pb²⁺Ions Using a PEDOT/NTA-Modified Electrode

et al. 2022

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A novel electrochemical sensor for determining trace levels of Hg 2+ , Pb 2+ , and Zn 2+ ions in water using square wave voltammetry (SWV) is reported. The sensor is based on a platinum electrode (Pt) modified by poly(3,4-ethylenedioxythiophene) and N α , N α -bis-(carboxymethyl)- l -lysine hydrate (NTA lysine) PEDOT/NTA. The modified electrode surface (PEDOT/NTA) was prepared via the introduction of the lysine-NTA group to a PEDOT/N-hydroxyphthalimide NHP electrode. The (PEDOT/NTA) was characterized via cyclic voltammetry (CV), Fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM). The effects of scan rates on the electrochemical properties of the polymer electrode were also investigated. The electrochemical results were used to estimate the coverage of the electrode polymer surface and its electrostability in background electrolyte solutions. Several analytical parameters, such as polymer film thickness, metal deposition time, and pH of the electrolyte, were examined. Linear responses to Hg 2+ , Pb 2+ , and Zn 2+ ions in the concentration range of 5–100 μg L –1 were obtained. The limits of detection (LODs) for the determination of Hg 2+ , Pb 2+ , and Zn 2+ ions were 1.73, 2.33, and 1.99 μg L –1 , respectively. These promising results revealed that modified PEDOT/NTA films might well represent an important addition to existing electrochemical sensor technologies.

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Section: Introductionmentioning

confidence: 99%

Voltammetric Determination of Hg²⁺, Zn²⁺, and Pb²⁺Ions Using a PEDOT/NTA-Modified Electrode

et al. 2022

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“…1b is the possible electron transfer mechanism of p(FcCPDT), which is derived from the latest literature review of polythiophene and its derivatives as SC electrode materials. 28 The redox reactions of p(FcCPDT) during the charging and discharging processes are believed to be electron-related only, without any ions generated or consumed. This commendable redox feature is highly valuable for the ASS-SSC device because little volume variation of the device could occur during the electron-transfer process.…”

Section: Introductionmentioning

confidence: 99%

Introducing a redox-active ferrocenyl moiety onto a polythiophene derivative towards high-performance flexible all-solid-state symmetric supercapacitors

Chen

Wong

2022

J. Mater. Chem. A

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“…Although polyacetylene is a very highly conductive (up to 10 5 S/cm) polymer, its high instability in air due to oxidative degradation by oxygen [2] and at elevated temperatures [3] has limited its commercial potential. Therefore, other intrinsically conducting polymers, including polypyrrole [4,5], polyaniline [6,7], polythiophene [8,9], polyfuran [10,11], polycarbazole [12,13], and others, have been prepared and are widely used due to their remarkable electrical and optical properties as well as good stability. Thus, these polymers are used for a large number of applications such as: supercapacitors and energy storage [14,15], (bio) fuel cells [16,17], anticorrosion [18,19], gas sensors [20,21], biosensors [22,23], or tissue engineering [24,25].…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition and Characterization of Conducting Polymer Films Obtained from Carbazole and 2-(9H-carbazol-9-yl)acetic Acid

et al. 2022

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Electrochemical oxidation of electrolyte solutions containing carbazole (Cz) and 2-(9H-carbazol-9-yl)acetic acid (CzA) monomers was performed in acetonitrile solutions. Different Cz and CzA feed ratios were used to electrodeposit solid polymer films of various compositions, and to study the influence of the monomer ratio on the physicochemical properties (electroactivity, topography, adhesion, stiffness, wettability) of the polymer films. Thus, electrochemical oxidation led to the deposition of a solid film of micrometric thickness, but only for the solutions containing at least 30% of Cz. The proportion of Cz and CzA in the electrodeposited polymer films has little impact on the adhesion strength values measured by AFM. On the contrary, this proportion significantly modifies the stiffness of the films. Indeed, the stiffness of the polymer films varies from 9 to 24 GPa depending on the monomer ratio, which is much lower than the value obtained for unmodified polycarbazole (64 GPa). This leads to the absence of cracks in the films, which all have a fairly homogeneous globular structure. Moreover, among the different polymer films obtained, those prepared from 70:30 and 50:50 ratios in Cz:CzA monomer solutions seem to be the most interesting because these green films are conductive, thick, low in stiffness, do not show cracks and are resistant to prolonged immersion in water.

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Polythiophene and its derivatives –Based nanocomposites in electrochemical sensing: A mini review

Cited by 36 publications

References 63 publications

Voltammetric Determination of Hg²⁺, Zn²⁺, and Pb²⁺Ions Using a PEDOT/NTA-Modified Electrode

Voltammetric Determination of Hg²⁺, Zn²⁺, and Pb²⁺Ions Using a PEDOT/NTA-Modified Electrode

Introducing a redox-active ferrocenyl moiety onto a polythiophene derivative towards high-performance flexible all-solid-state symmetric supercapacitors

Electrodeposition and Characterization of Conducting Polymer Films Obtained from Carbazole and 2-(9H-carbazol-9-yl)acetic Acid

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Polythiophene and its derivatives –Based nanocomposites in electrochemical sensing: A mini review

Cited by 36 publications

References 63 publications

Voltammetric Determination of Hg2+, Zn2+, and Pb2+Ions Using a PEDOT/NTA-Modified Electrode

Voltammetric Determination of Hg2+, Zn2+, and Pb2+Ions Using a PEDOT/NTA-Modified Electrode

Introducing a redox-active ferrocenyl moiety onto a polythiophene derivative towards high-performance flexible all-solid-state symmetric supercapacitors

Electrodeposition and Characterization of Conducting Polymer Films Obtained from Carbazole and 2-(9H-carbazol-9-yl)acetic Acid

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Voltammetric Determination of Hg²⁺, Zn²⁺, and Pb²⁺Ions Using a PEDOT/NTA-Modified Electrode

Voltammetric Determination of Hg²⁺, Zn²⁺, and Pb²⁺Ions Using a PEDOT/NTA-Modified Electrode