Preparation of polyaniline/porous carbon spheres derived from γ-cyclodextrin for supercapacitors

Zhang, Wang; Tao, Xutang; Huo, Xin; Li, Xusen; Park, Sumin; Lin, Liwei; Diao, Guowang; Piao, Yuanzhe

doi:10.1016/j.jelechem.2022.116615

Cited by 12 publications

(7 citation statements)

References 40 publications

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“…Owing to the excellent pseudocapacitance characteristics of the −Nand −NH–, the specific capacitance of the CCDPC/PANI can be anticipated to greatly improve. Furthermore, the existence of NH + – can further enhance the conductivity of the material, thus furthering the electrochemical property of the CCDPC/PANI material. ,− As a result, the successful synthesis of PANI in the CCDPC/PANI composite was confirmed by C 1s and N 1s spectra.…”

Section: Resultsmentioning

confidence: 99%

“…The obtained rGO/PANI exhibited a maximum capacitance of 478 F g −1 at 10 mV s −1 and high energy and power density (9 Wh Kg −1 and 1100 W Kg −1 ). Zhang et al 29 combined porous carbon spheres (PCSs) with PANI to get a composite electrode material (PANI/PCS) with a high electrochemical energy storage property. Compared with PCSs, the specific capacitance of the PANI/PCS composite was significantly increased by 208.7% and resulted in a high specific capacitance of 339.6 F g −1 at 1 A g −1 .…”

Section: ■ Introductionmentioning

confidence: 99%

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Modification and Supercapacitive Performance Enhancement of Calcium Carbide-Derived Carbon Prepared by a Green Solvent-Free Mechanochemical Route

Yang

Peng

Lei

et al. 2023

ACS Appl. Energy Mater.

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A solvent-free mechanochemical method is a green and environmentally friendly preparation technology for the preparation of calcium carbide-derived porous carbon (CCDPC). Although CCDPC can be widely used in the fields of energy storage, gas separation, catalysis, and so on, the performance of CCDPC as an electrode material of supercapacitors still needs to be further improved. Based on the in situ chemical oxidation polymerization method, in this paper, polyaniline (PANI) is successfully introduced into CCDPC and covered on the surface and skeleton of CCDPC. It has been found that the as-prepared CCDPC/PANI composite electrode displays a high specific capacitance of 362 F g–1 at 0.5 A g–1, which is approximately 4 times higher than that of the pure CCDPC electrode. When assembling a symmetric supercapacitor by a CCDPC/PANI composite with a wide voltage window of 0–1.1 V, the supercapacitor delivers a higher energy density than CCDPC and reveals excellent capacitance retention of 77% after 10,000 cycles. Therefore, the preparation technology of the CCDPC/PANI composite provides significative exploration for the enhancement of electrochemical performance of high-performance supercapacitors and predicts a promising application prospect in the field of energy storage.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Modification and Supercapacitive Performance Enhancement of Calcium Carbide-Derived Carbon Prepared by a Green Solvent-Free Mechanochemical Route

Yang

Peng

Lei

et al. 2023

ACS Appl. Energy Mater.

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“…While transition-metal oxides and conducting polymers can exhibit greater energy density by offering more charge storage through the pseudocapacitance characteristic. 31,32 The development of electrode materials for supercapacitors that have a long cycle life, high energy density, and high power density is crucially important. CNTs have been shown to have better ion conductivity in the fiber axis direction and can be used to make nonwoven films using the floating catalytic chemical vapor deposition (FCCVD) method.…”

Section: Introductionmentioning

confidence: 99%

“…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. CNTs have been shown to have better ion conductivity in the fiber axis direction and can be used to make nonwoven films using the floating catalytic chemical vapor deposition (FCCVD) method.…”

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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Preparation of polyaniline/porous carbon spheres derived from γ-cyclodextrin for supercapacitors

Cited by 12 publications

References 40 publications

Modification and Supercapacitive Performance Enhancement of Calcium Carbide-Derived Carbon Prepared by a Green Solvent-Free Mechanochemical Route

Modification and Supercapacitive Performance Enhancement of Calcium Carbide-Derived Carbon Prepared by a Green Solvent-Free Mechanochemical Route

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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