Preparation and electrochemical and electrochromic properties of wrinkled poly(N-methylthionine) film

Chen, Chuanxiang; Hong, Xiaozhang; Xu, Tingting; Lü, Jun; Gao, Yuhua

doi:10.1016/j.synthmet.2015.03.038

Cited by 22 publications

(16 citation statements)

References 50 publications

(55 reference statements)

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“…Poly(N-methylthionine) (PNMTh) is a novel conducting polymer with a good electroactivity in acidic, neutral and basic solutions and in a wide potential range. 17 This is due to the reversible redox of phenothiazine rings and amino bridges in the polymer chain, similarly to that of polythionine. 18 This redox activity provides a possibility for PNMTh as a redox mediator.…”

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confidence: 99%

Electrocatalytic Oxidation and Determination of Hydrogen Peroxide at Poly(N-methylthionine) Electrodes

Chen

Hong

et al. 2015

J. Electrochem. Soc.

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Poly(N-methylthionine) (PNMTh) was utilized as an electrocatalyst to lower the overpotential of hydrogen peroxide (H 2 O 2 ) oxidation compared with bulk platinum. The electrocatalyst was prepared by potential cycling from a phosphate buffer solution containing Nmethylthionine and sodium chloride on a platinum foil electrode. X-ray photoelectron spectroscopy (XPS) demonstrated the formation of the polymer film. Cyclic voltammetry and chronoamperometry showed the PNMTh electrode had an excellent electrocatalytic activity toward H 2 O 2 oxidation. Furthermore, the PNMTh electrode was found to be promising as an amperometric detector for H 2 O 2 . The proposed enzyme-free H 2 O 2 sensor exhibited a wide linear range (1-700 μM), fast response (2 s), low detection limit (0.12 μM), high sensitivity, and long-term stability, plus low cost.

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confidence: 99%

Electrocatalytic Oxidation and Determination of Hydrogen Peroxide at Poly(N-methylthionine) Electrodes

Chen

Hong

et al. 2015

J. Electrochem. Soc.

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“…The C/O atomic ratio in GO is 1.44, which is similar to that reported by Kong group (1.47). 30 After reduction of GO, the oxygen functional group peak intensities of rGO are markedly reduced, while the C−H/C−C/C=C peak intensity of rGO is increased significantly. These results indicate a few portion of the oxygen-containing groups is remained in rGO.…”

Section: Resultsmentioning

confidence: 94%

“…1b, a reversible redox peak of NMTh appears at 0.02 V/−0.38 V in the first scan cycle. 30,31 However, an irreversible oxidation of the monomer occurs at higher than 0.90 V, which is assigned to the form of its radical cation, resulting in electropolymerization. From the 11th to the 50th scan cycle, a new redox peak gradually takes place, corresponding to the redox behavior of the polymer, and the redox peak currents are increased gradually.…”

Section: Resultsmentioning

confidence: 99%

“…Unlike polyaniline, polyphenothiazine dyes, having fast reversible redox activity and good long-term stability, have been demonstrated as very attractive conducting redox polymers for (bio-)sensors, solar batteries, and biofuel cells, but not yet for supercapacitors. [30][31][32] Here we develop a one-step electrosynthesis of a graphene based polyphenothiazine dye composite film on a graphite paper (GP) substrate for supercapacitors. N-methylthionine (NMTh, also known as azure C) is used as a model phenothiazine dye molecule.…”

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confidence: 99%

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One-Step Electrofabrication of Reduced Graphene Oxide/Poly(N-methylthionine) Composite Film for High Performance Supercapacitors

Gan

Song

Zhang

et al. 2020

J. Electrochem. Soc.

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Graphene based conducting polymer composites have demonstrated remarkable potential in supercapacitors. Here we develop a facile one-step cyclic voltammetric codeposition method for the fabrication of a reduced graphene oxide (rGO)/conducting redox polymer composite film on a graphite paper (GP) substrate using graphene oxide (GO) and a redox dye N-methylthionine (NMTh) as precursors. The morphology, composition, and structure of the composite film were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). The resulting composite film has a layered and encapsulated microstructure, large specific area, high electrical conductivity, and fast reversible redox activity. The as-prepared rGO/polymeric redox dye composite film shows high specific capacitances of 500 and 400 F g–1 at 0.5 and 10 A g–1 current densities, respectively, with a retention life of up to 93.0% over 1000 charge/discharge cycles at 0.5 A g–1. This coelectrodeposition may provide a promising method for the fabrication of graphene/other conducting redox polymer composites for energy storage application.

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“…Different types of polymeric materials have been used in a number of applications such as in biomedical, electronics, super capacitors, sensors, batteries, structural composites and separations to name a few . As an example, non‐volatile polymer electrolyte was used for electrochromic devices as well as electrochromic properties of other conducting polymers such as poly(aniline‐co‐N‐methylthionine) were also studied . Natural polymers‐based materials such as natural fibers have also been used in the preparation of sustasinable polymer materials .…”

Section: Introductionmentioning

confidence: 99%

Graphene-based polymer nanocomposite membranes: a review

Miculescu

Thakur

Miculescu

et al. 2016

Polym. Adv. Technol.

186

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Ever since the discovery of graphene, its potential has been predicted for a number of applications in various fields such as electronics, sensors, environmental decontamination techniques, separations and biomedicine to name a few. Among various such fields, the research in graphene-based nanocomposites membranes is still in its infancy as there is not a significant research published in this field so far. However, interestingly this field is registering an exponentially upward trend recently. This review article provides a brief description of polymer nanocomposite membranes with graphene as one of the most indispensable components in the membranes. In this article, we describe in a systematic and comprehensive manner the most recent research published so far in the nanocomposite membranes with graphene and the most commonly used polymers namely the polysulfone and the cellulose derivatives. This article also describes the main applications of these polymeric membranes in the fuel cells and in water purification processes containing the current literature data as well as the authors' own research.

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Preparation and electrochemical and electrochromic properties of wrinkled poly(N-methylthionine) film

Cited by 22 publications

References 50 publications

Electrocatalytic Oxidation and Determination of Hydrogen Peroxide at Poly(N-methylthionine) Electrodes

Electrocatalytic Oxidation and Determination of Hydrogen Peroxide at Poly(N-methylthionine) Electrodes

One-Step Electrofabrication of Reduced Graphene Oxide/Poly(N-methylthionine) Composite Film for High Performance Supercapacitors

Graphene-based polymer nanocomposite membranes: a review

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