In situ hybridization of polyaniline on Mn oxide for high-performance supercapacitor

Ye, Qinglan; Luo, Yunli; Cen, Qinchun; Dong, Ruiting; Luo, Taopeng; Xu, Xuetang; Wang, Fan; Li, Bin

doi:10.1016/j.est.2021.102330

Cited by 14 publications

(2 citation statements)

References 55 publications

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“…Furthermore, the device maintains an energy density of 70.93 Wh kg −1 even at an ultrahigh power density of 47 kW kg −1 . As shown in Table S3 , the assembled devices exhibit excellent energy storage performance in both aqueous and organic electrolytes, and compare favorably with published supercapacitor work, with performance far exceeding devices such as WC-E-100-48//WC-E-100-48 (11.0 Wh Kg −1 , 26.3 W Kg −1 ) [ 41 ], WBMs-800//WBMs-800 (9.4 Wh Kg −1 , 227 W Kg −1 ) [ 42 ], Co(OH) 2 @CW//CW (6.5 Wh Kg −1 , 236 W Kg −1 ) [ 43 ], NiCo-P//CW (12.1 Wh Kg −1 , 395 W Kg −1 ) [ 44 ], N-M-O//Carbon (20.1 Wh Kg −1 , 226 W Kg −1 ) [ 45 ], and MnOx/PANI//Carbon (30.7 Wh Kg −1 , 800 W Kg −1 ) [ 46 ]. This means that the device has good application prospects.…”

Section: Resultsmentioning

confidence: 99%

Hierarchically Porous Carbon Nanosheets from One-Step Carbonization of Zinc Gluconate for High-Performance Supercapacitors

Tian,

Weng,

Xiao

et al. 2023

IJMS

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Supercapacitors, with high energy density, rapid charge–discharge capabilities, and long cycling ability, have gained favor among many researchers. However, the universality of high-performance carbon-based electrodes is often constrained by their complex fabrication methods. In this study, the common industrial materials, zinc gluconate and ammonium chloride, are uniformly mixed and subjected to a one-step carbonization strategy to prepare three-dimensional hierarchical porous carbon materials with high specific surface area and suitable nitrogen doping. The results show that a specific capacitance of 221 F g−1 is achieved at a current density of 1 A g−1. The assembled symmetrical supercapacitor achieves a high energy density of 17 Wh kg−1, and after 50,000 cycles at a current density of 50 A g−1, it retains 82% of its initial capacitance. Moreover, the operating voltage window of the symmetrical device can be easily expanded to 2.5 V when using Et4NBF4 as the electrolyte, resulting in a maximum energy density of up to 153 Wh kg−1, and retaining 85.03% of the initial specific capacitance after 10,000 cycles. This method, using common industrial materials as raw materials, provides ideas for the simple preparation of high-performance carbon materials and also provides a promising method for the large-scale production of highly porous carbons.

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Section: Resultsmentioning

confidence: 99%

Hierarchically Porous Carbon Nanosheets from One-Step Carbonization of Zinc Gluconate for High-Performance Supercapacitors

Tian,

Weng,

Xiao

et al. 2023

IJMS

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“…Therefore, the invariable capacitance confirms the long-term mechanical stability of the Ag@NiCo/MnO x NW electrode. In addition, we compared the performances of flexible energy-storage electrodes using MnO x as the active material but on different current collectors − to the Ag@NiCo/MnO x NW network (Table S1). The comparison result reveals that our electrode has a high specific capacity and good flexibility.…”

Section: Resultsmentioning

confidence: 99%

Structural Engineering of Ultrathin, Lightweight, and Bendable Electrodes Based on a Nanowire Network Current Collector Enables Flexible Energy-Storage Devices

Zhong

Chen

Liang

et al. 2022

ACS Appl. Energy Mater.

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Because of the rapid development of portable electronics, there is an urgent need for ultrathin, lightweight, and bendable electrodes for flexible and wearable energy-storage devices (FWESDs). This paper introduces the structural engineering of flexible electrodes with the above characteristics based on a Ag nanowire (NW) network current collector. The conductive interconnected networks give electrodes a highway of electron transport and excellent flexibility. Two kinds of nanostructures have been designed for high-performance electrodes, enabling diverse applications in FWESDs. In a core–shell Ag@NiCo/MnO x NW electrode, the MnO x thin shell layer favors a quick and reversible faradic reaction at the near surface. The electrode achieves a specific capacity of 41 mF cm–2 (350 F g–1), a capacitance retention rate of 88% after 2000 cycles, and stable electrochemical performance under repeated bending. In double-layer Ag@NiCo NW-Co(OH)2 electrode, the vertical growth of Co(OH)2 nanosheets covers the entire network, generating a high mass loading and abundant pathways for ion diffusion. As a result, the electrode delivers a high capacity of 376 mF cm–2 (1886 F g–1) and an excellent Coulombic efficiency of 95%. Both electrodes are demonstrated in FWESDs under various working scenarios, indicating promising prospects in the next generation of flexible electronics.

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PANI-grafted radially porous MnO2 for supercapacitor applications

Sinan-Tatli,

Unur-Yilmaz

2024

J Solid State Electrochem

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In situ hybridization of polyaniline on Mn oxide for high-performance supercapacitor

Cited by 14 publications

References 55 publications

Hierarchically Porous Carbon Nanosheets from One-Step Carbonization of Zinc Gluconate for High-Performance Supercapacitors

Hierarchically Porous Carbon Nanosheets from One-Step Carbonization of Zinc Gluconate for High-Performance Supercapacitors

Structural Engineering of Ultrathin, Lightweight, and Bendable Electrodes Based on a Nanowire Network Current Collector Enables Flexible Energy-Storage Devices

PANI-grafted radially porous MnO2 for supercapacitor applications

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