Recovery of Electrochemical Properties of Polyaniline-Based Multilayer Films with Improved Electrochemical Stability

Firda, Putri Bintang Dea; Jeon, Ju‐Won

doi:10.1021/acsapm.2c00445

Cited by 8 publications

(10 citation statements)

References 56 publications

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“…through electrochemical polymerization can improve the overall performance of the sensor. 29 Herein, using melamine as a carbon source and boric acid as a dopant, nitrogen-/boron-doped CDs are prepared by hydrothermal prepolymerization. A PMEL-CDs/MWCNTs-COOH nanocomposite was prepared by electropolymerization of a nanomonomer (CDs fixed melamine residues) on a modified electrode in chloride ion solution for selective detection of DA and UA.…”

Section: Introductionmentioning

confidence: 99%

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Melamine-Based Nanocomposites for Selective Dopamine and Uric Acid Sensing

Zhou

Kuang

et al. 2023

ACS Appl. Polym. Mater.

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The formation process of carbon dots (CDs) is mostly polymerization; recently, studies on the polymerization of carbon families (graphene oxide and C60) have been receiving exciting attention. Herein, a protocol of prepolymerization and electropolymerization of monomer (melamine) and nanomonomer (CDs fixed melamine residues) was proposed to prepare a nanocomposite for selective dopamine (DA) and uric acid (UA) sensing. The nanomonomer was prepared by hydrothermal prepolymerization of melamine, and then the nanocomposite was formed in situ by electropolymerization of the CDs/carboxylated multiwalled carbon nanotubes (MWCNTs-COOH)-modified glassy carbon electrode (GCE) in KCl solution. Scanning electron microscopy, transmission electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy, cyclic voltammetry, electrochemical impedance spectroscopy, and differential pulse voltammetry were used to characterize the properties of the nanocomposite. Under optimal conditions, the electrochemical sensor shows selectivity and a wide linear range from 0.1 to 10 μM for DA and 0.1 to 200 μM for UA, with the detection limit of 0.023 and 0.064 μM (S/N = 3) in the presence of AA, respectively. In addition, the proposed sensor was also applied to selectively test DA and UA in the presence of 500 μmol/L AA in real samples with satisfactory recovery.

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Section: Introductionmentioning

confidence: 99%

“…Further regulation of the electrical activity and conductivity of the polymer (such as number of scan cycles, scan rate, etc.) through electrochemical polymerization can improve the overall performance of the sensor …”

Section: Introductionmentioning

confidence: 99%

Melamine-Based Nanocomposites for Selective Dopamine and Uric Acid Sensing

Zhou

Kuang

et al. 2023

ACS Appl. Polym. Mater.

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“…Electrochromic materials can undergo stable and reversible changes in optical properties under external voltage. , Recently, electrochromic materials have been widely studied in the fields of smart windows, automotive anti-glare rearview mirrors, electronic tags, displays, and other advanced wearable technologies, and some of them have already been applied. − Polymer-based electrochromic materials (PEC) have received more and more attention owing to their easy structural modification, wide color changes, high optical contrast, and fast switching time. − However, for application in transmissive electrochromic devices (like smart windows or smart glasses), higher requirements have been proposed in terms of high transparency, large optical contrast, and excellent cycling stability. − …”

Section: Introductionmentioning

confidence: 99%

Thermally Cross-Linked Copolymer for Highly Transparent to Multicolor-Showing Electrochromic Materials

Zhu

et al. 2023

ACS Appl. Polym. Mater.

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A triphenylamine derivative STPA was designed and synthesized by introducing thermally cross-linked vinyl group at the end of 4methoxytriphenylamine. The corresponding polymer pSTPA was prepared by a thermal polymerization reaction without any initiator. CV tests reveal that pSTPA has a pair of distinct redox peaks. Spectroelectrochemical results demonstrates that pSTPA has a maximum absorption peak at 354 nm and a new absorption peak at 730 nm with increasing voltage, accompanied with the polymer from transparent to blue. In order to realize multicolor showing and improve the cycling stability, the corresponding copolymer pSTPA-co-TPA-OCH 3 was further prepared via thermally cross-linked vinyl groups by combining STPA with methoxy-modified triphenylamine derivative TPA-OCH 3 monomers in a molar ratio of 1:1. As expected, the copolymer film presents a multicolored appearance with four color changes (transparent−dark yellow−sky blue−purple), high optical contrast (45.0% at 480 nm, 56.1% at 700 nm, and 82.4% at 910 nm, respectively), large coloration efficiency of 287 cm 2 /C (at 910 nm), and good cycling stability (essentially no degradation of optical contrast over 2000 cycles). Therefore, this work puts forward an effective method to achieve a highly transparent to multicolor-showing electrochromic polymer via thermally cross-linked copolymerization, which shows potential applications in smart windows, sunglasses, and electronic tags.

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“…Developing techniques to store electrical energy generated from the sources of renewable energy has become significantly crucial in recent years. , Among various energy-storage methods, electrical energy storage (EES) has attracted great attention and has been widely utilized in electric vehicles and various portable electronic devices. , Owing to their moderately high energy density and power density, supercapacitors are the attractive options of EES that can fill in the gaps between the batteries and conventional capacitors. , Thus, various active materials for supercapacitors, including porous carbons, transition-metal oxides, , and conducting polymers, , have been developed in order to achieve outstanding capacitive performances. Among these materials, polyaniline (PANI), a common conducting polymer, is particularly of interest owing to its high electrical conductivity, processability, and considerable theoretical specific capacitance. ,, The charging and discharging processes of PANI rely on its fast and reversible electrochemical reactions along with the adsorption and desorption of ions. ,, It is thus expected that PANI with a large exposed surface area to render more redox-active sites electrochemically addressable should be highly desirable for use in supercapacitors to achieve a high capacitance close to the theoretical value.…”

Section: Introductionmentioning

confidence: 99%

Sulfonate-Functionalized Two-Dimensional Metal–Organic Framework as a “Dispersant” for Polyaniline to Boost Its Electrochemical Capacitive Performance

Tsai,

Chen,

Chang

et al. 2023

ACS Appl. Energy Mater.

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Polyaniline (PANI) is a conducting polymer with remarkable electrochemical performance for supercapacitors. On the other hand, materials with sulfonate groups, such as polystyrenesulfonate and Nafion, are commonly used as the dispersants to spatially separate the polymeric chains of PANI by means of the electrostatic interaction between the aniline unit and the negatively charged sulfonate. Herein, a two-dimensional (2D) zirconium-based metal−organic framework (MOF) with enriched sulfonate-based ligands postsynthetically coordinated onto its nodes, ZrBTB−SO 3 (BTB = 1,3,5-tri(4-carboxyphenyl)benzene), is utilized as the dispersant during the in situ polymerization of aniline; composites with various ratios between PANI and ZrBTB−SO 3 are thus synthesized. For comparison, the pristine 2D MOF without sulfonate groups is also subjected to the in situ polymerization to synthesize the PANI@ZrBTB composite. Crystallinity, porosity, morphology, elemental composition, and electrical conductivity of each composite are examined. These PANI-based materials are thereafter cast on the electrodes as thin films to investigate their electrochemical capacitive performances in acidic aqueous electrolytes. With the help of the negatively charged sulfonatefunctionalized 2D MOF sheets as the dispersant, the resulting PANI in the composite can achieve a specific capacitance of 515 F/g at a charge−discharge current of 0.5 mA/cm 2 , which is much higher than those achieved by the pristine PANI (230 F/g), PANI@ ZrBTB (137 F/g), and the physical mixture of PANI and ZrBTB−SO 3 (130 F/g). Findings here open numerous opportunities for utilizing such water-stable and sulfonate-functionalized 2D MOFs to spatially disperse various conducting polymers and boost their performances in a range of applications.

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Recovery of Electrochemical Properties of Polyaniline-Based Multilayer Films with Improved Electrochemical Stability

Cited by 8 publications

References 56 publications

Melamine-Based Nanocomposites for Selective Dopamine and Uric Acid Sensing

Melamine-Based Nanocomposites for Selective Dopamine and Uric Acid Sensing

Thermally Cross-Linked Copolymer for Highly Transparent to Multicolor-Showing Electrochromic Materials

Sulfonate-Functionalized Two-Dimensional Metal–Organic Framework as a “Dispersant” for Polyaniline to Boost Its Electrochemical Capacitive Performance

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