Polymerization of pyrrole induced by pillar[5]arene functionalized graphene for supercapacitor electrode

Guo, Fang; Guo, Junqiang; Zheng, Zhiqiang; Tao, Xia; Chishti, Aadil Nabi; Lin, Liwei; Zhang, Wang; Diao, Guowang

doi:10.1016/j.cclet.2022.01.088

Cited by 23 publications

(8 citation statements)

References 32 publications

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“…The 1 H NMR spectroscopy is an effective method for investigating supramolecular interactions [ 19 , 20 , 21 ]. The 1 H NMR spectra of the inclusion complex, DPG, and β -CDP are shown in Figure 3 .…”

Section: Resultsmentioning

confidence: 99%

Supramolecular Design Strategy of a Water-Soluble Diphenylguanidine-Cyclodextrin Polymer Inclusion Complex

Guo

Lin²,

Wang³

et al. 2022

Molecules

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Diphenylguanidine (DPG) is a widely used secondary accelerator for the vulcanization of natural rubber (NR) latex. However, its low water solubility and high toxicity limit its use in high-end NR products. In this study, a water-soluble inclusion complex of DPG and a β-cyclodextrin polymer (β-CDP), termed DPG-β-CDP, was prepared through supramolecular interactions and characterized using Fourier-transform infrared spectroscopy, 1H NMR, scanning electron microscopy, and UV-vis spectroscopy techniques. In comparison with that of DPG, the water solubility of DPG-β-CDP was greatly enhanced because of the water-soluble host molecule. The molar ratio of DPG to the CD unit in β-CDP was determined to be 1:1. At 25 °C, the binding constant of DPG-β-CDP was found to be 9.2 × 105 L/mol by UV-vis spectroscopy. The proposed method for forming inclusion complexes with high potential for use as water-soluble vulcanization accelerators is promising.

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Section: Resultsmentioning

confidence: 99%

Supramolecular Design Strategy of a Water-Soluble Diphenylguanidine-Cyclodextrin Polymer Inclusion Complex

Guo

Lin²,

Wang³

et al. 2022

Molecules

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“…With the rapid advancement of smart and wearable electronic products, human society is demonstrating an increasing demand for high-performance flexible energy storage devices, particularly miniaturized flexible supercapacitors that are lightweight, have a high capacity, can charge quickly, and have a long cycle life. − Electric double-layer capacitors (EDLCs), pseudocapacitors, and hybrid capacitors are three categories of supercapacitors that can be distinguished based on the energy storage mechanism of the Faraday reaction. , The performance of supercapacitors is greatly influenced by the materials used for the electrodes and electrolytes. , Therefore, to fabricate supercapacitors with high power density and high energy density, it is necessary to develop novel electrode materials, electrolytes, and innovative device configurations . The commonly used electrode materials for supercapacitors include carbon materials [activated carbon, carbon nanotubes (CNTs), graphene, carbon fibers, and carbon aerogels], transition-metal oxides (RuO 2 , MnO 2 , IrO 2 , NiO, Fe 2 O 3 , Co 3 O 4 , and V 2 O 5 ), conductive polymers [polypyrrole, polythiophene, and polyaniline (PANI) , ] and their various composites. − Electrode materials made of carbon display the typical behavior of an EDLC. While transition-metal oxides and conducting polymers can exhibit greater energy density by offering more charge storage through the pseudocapacitance characteristic. , The development of electrode materials for supercapacitors that have a long cycle life, high energy density, and high power density is crucially important.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Coral-like Polyaniline/Continuously Reinforced Carbon Nanotube Woven Composite Films for Flexible High-Stability Supercapacitor Electrodes

Shi

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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The electrochemical performance is significantly influenced by the structure and surface morphology of the electrode materials used in supercapacitors. Using the floating catalytic chemical vapor deposition (FCCVD) technique, a self-supporting, flexible layer of continuously reinforced carbon nanotube woven film (CNWF) was developed. Then, polyaniline (PANI) was formed in the conductive network of CNWF using cyclic voltammetry electrochemical polymerization (CVEP) in various aqueous electrolytes to produce a series of flexible CNWF/PANI composite films. The impacts of the CVEP period, electrolyte type, and electrolyte concentration on the surface morphology, doping degree, and hydrophilicity of CNWF/PANI composite films were thoroughly examined. The CNWF/PANI1-15C composite electrode, which was created using 15 cycles of CVEP in a solution of 1 M sodium bisulfate, displayed a distinctive coral-like PANI layer with a well-defined sharp nanoprotuberance structure, a 48% doping degree, and a quick reversible pseudocapacitive storage mechanism. At a current density of 1 A g–1, the energy density and specific capacitance reached 54.9 Wh kg–1 and 1098.0 F g–1, respectively, with a specific capacitance retention rate of 75.9% maintained at 10 A g–1. Both the specific capacitance and coulomb efficiency were maintained at 96.9% and more than 98.1% of their initial values after being subjected to 2000 cycles of galvanostatic charge and discharge, demonstrating excellent electrochemical cycling stability. The CNWF/PANI1-15C composite film, an ideal electrode material, offers a promising future in the field of flexible energy storage due to its exceptional mechanical properties (127.9 MPa tensile strength and 16.2% elongation at break).

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“…[52][53][54] Some available types of stainless steel, like steel mesh, can provide a relatively high surface area to use as a current collector and electro-polymerization substrate. While many studies have shown conductive polymers (especially PANI) to be useful as an electrode material for supercapacitors, [2,24,[55][56][57][58] to the authors' knowledge, no study has yet been published on the easy and cost-effective preparation of PANI on steel mesh electrode (SME) for symmetric supercapacitor.…”

Section: Introductionmentioning

confidence: 99%

Designing High‐Performing Symmetric Supercapacitor by Engineering Polyaniline on Steel Mesh Surface via Electrodeposition

Mahfoz

Das

Shah

et al. 2023

Chemistry An Asian Journal

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Energy storage is one of the most stimulating requirements to keep civilization on the wheel of progress. Supercapacitors generally exhibit a high-power density, have a maximum life cycle, quick charging time, and are ecofriendly. Polyaniline (PANI), a conductive polymer, is considered an efficacious electrode material for supercapacitors due to its good electroactivity, including pseudocapacitive behavior. Here, we present the fabrication of a symmetric supercapacitor device based on steel mesh electrodeposited with PANI. Due to its effective conductivity, porous nature, and low cost, steel mesh is a good choice as a current collector to fabricate a high-performance supercapacitor at a low cost. The optimum fabricated supercapacitor has a high specific capacitance of ~353 mF cm À 2 . Furthermore, the supercapacitor obtained an energy density of ~26.4 μW h cm À 2 at a power density of ~400 μW cm À 2 . The fabricated supercapacitor shows high stability, as the initial capacitance remained almost the same after 1000 charge/discharge cycles. PANI is a promising candidate for mass production and wide applications due to its low cost and high performance.

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Polymerization of pyrrole induced by pillar[5]arene functionalized graphene for supercapacitor electrode

Cited by 23 publications

References 32 publications

Supramolecular Design Strategy of a Water-Soluble Diphenylguanidine-Cyclodextrin Polymer Inclusion Complex

Supramolecular Design Strategy of a Water-Soluble Diphenylguanidine-Cyclodextrin Polymer Inclusion Complex

Fabrication of Coral-like Polyaniline/Continuously Reinforced Carbon Nanotube Woven Composite Films for Flexible High-Stability Supercapacitor Electrodes

Designing High‐Performing Symmetric Supercapacitor by Engineering Polyaniline on Steel Mesh Surface via Electrodeposition

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