Construction of NiCo2O4 nanoflake arrays on cellulose-derived carbon nanofibers as a freestanding electrode for high-performance supercapacitors

Ni, Xuepeng; Li, Changlei; Wu, Qianqian; Liu, Cheng‐Lin; Chen, Huifang; Wu, Qilin; Ju, Anqi

doi:10.1007/s11705-022-2268-6

Cited by 9 publications

(1 citation statement)

References 49 publications

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“…In recent years, pseudocapacitors have been widely studied because of their higher energy density compared with double-layer capacitors. [6][7][8][9][10][11] The main application value of supercapacitors is their high power characteristics, but they also need a high enough energy density to store more energy for output. Transition metal oxides are one of the main electrode materials for pseudocapacitors, which can be stored by reversible redox reactions on or near the surface of active materials.…”

Section: Introductionmentioning

confidence: 99%

Performance degradation study of NiCo₂O₄-based asymmetric supercapacitors

Guo,

Mei,

Chen

et al. 2023

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Performance degradation study of NiCo₂O₄-based asymmetric supercapacitors

Guo,

Mei,

Chen

et al. 2023

RSC Adv.

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Microfluidic‐Assembled Covalent Organic Frameworks@Ti₃C₂T_x MXene Vertical Fibers for High‐Performance Electrochemical Supercapacitors

Zhu,

Zhang,

Man

et al. 2023

Advanced Materials

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The delicate design of innovative and sophisticated fibers with vertical porous skeleton and eminent electrochemical activity to generate directional ionic pathways and good faradic charge accessibility is pivotal but challenging for realizing high‐performance fiber‐shaped supercapacitors (FSCs). Here, we develop hierarchically ordered hybrid fiber combined vertical‐aligned and conductive Ti3C2Tx MXene (VA‐Ti3C2Tx) with interstratified electroactive covalent organic frameworks LZU1 (COF‐LZU1) by one‐step microfluidic synthesis. Due to the incorporation of vertical channels, abundant redox active sites and large accessible surface area throughout the electrode, the VA‐Ti3C2Tx@COF‐LZU1 fibers express exceptional gravimetric capacitance of 787 F g−1 in three‐electrode system. Additionally, the solid‐state asymmetric FSCs deliver prominent energy density of 27 Wh kg−1, capacitance of 398 F g−1 and cycling life of 20000 cycles. The key to high energy storage ability originates from the decreased ions adsorption energy and ameliorative charge density distribution in vertically aligned and active hybrid fiber, accelerating ions transportation/accommodation and interfacial electrons transfer. Benefiting from excellent electrochemical performance, the FSCs offer sufficient energy supply to power watch, flag and digital display tube as well as be integrated with sensor to detect pulse signals, which opens a promising route for architecting advanced fiber towards carbon neutrality market beyond energy‐storage technology.This article is protected by copyright. All rights reserved

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Interfacially Ordered NiCoMoS Nanosheets Arrays on Hierarchical Ti₃C₂T_x MXene for High‐Energy‐Density Fiber‐Shaped Supercapacitors with Accelerated Pseudocapacitive Kinetics

Mei,

Yang,

Chen

et al. 2024

Angewandte Chemie

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Balancing electrochemical activity and structural reversibility of fibrous electrodes with accelerated Faradaic charge transfer kinetics and pseudocapacitive storage are highly crucial for fiber‐shaped supercapacitors (FSCs). Herein, we report novel core‐shell hierarchical fibers for high‐performance FSCs, in which the ordered NiCoMoS nanosheets arrays are chemically anchored on Ti3C2Tx fiber. Beneficial from architecting stable polymetallic sulfide arrays and conductive networks, the NiCoMoS‐Ti3C2Tx fiber maintains fast charge transfer, low diffusion and OH‐ adsorption barrier, and stabilized multi‐electronic reaction kinetics of polymetallic sulfide. Consequently, the NiCoMoS‐Ti3C2Tx fiber exhibits a large volumetric capacitance (2472.3 F cm‐3) and reversible cycling performance (20,000 cycles). In addition, the solid‐state symmetric FSCs deliver a high energy density of 50.6 mWh cm‐3 and bending stability, which can significantly power electronic devices and offer sensitive detection for dopamine.

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Construction of NiCo2O4 nanoflake arrays on cellulose-derived carbon nanofibers as a freestanding electrode for high-performance supercapacitors

Cited by 9 publications

References 49 publications

Performance degradation study of NiCo₂O₄-based asymmetric supercapacitors

Performance degradation study of NiCo₂O₄-based asymmetric supercapacitors

Microfluidic‐Assembled Covalent Organic Frameworks@Ti₃C₂T_x MXene Vertical Fibers for High‐Performance Electrochemical Supercapacitors

Interfacially Ordered NiCoMoS Nanosheets Arrays on Hierarchical Ti₃C₂T_x MXene for High‐Energy‐Density Fiber‐Shaped Supercapacitors with Accelerated Pseudocapacitive Kinetics

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Construction of NiCo2O4 nanoflake arrays on cellulose-derived carbon nanofibers as a freestanding electrode for high-performance supercapacitors

Cited by 9 publications

References 49 publications

Performance degradation study of NiCo2O4-based asymmetric supercapacitors

Performance degradation study of NiCo2O4-based asymmetric supercapacitors

Microfluidic‐Assembled Covalent Organic Frameworks@Ti3C2Tx MXene Vertical Fibers for High‐Performance Electrochemical Supercapacitors

Interfacially Ordered NiCoMoS Nanosheets Arrays on Hierarchical Ti3C2Tx MXene for High‐Energy‐Density Fiber‐Shaped Supercapacitors with Accelerated Pseudocapacitive Kinetics

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Performance degradation study of NiCo₂O₄-based asymmetric supercapacitors

Performance degradation study of NiCo₂O₄-based asymmetric supercapacitors

Microfluidic‐Assembled Covalent Organic Frameworks@Ti₃C₂T_x MXene Vertical Fibers for High‐Performance Electrochemical Supercapacitors

Interfacially Ordered NiCoMoS Nanosheets Arrays on Hierarchical Ti₃C₂T_x MXene for High‐Energy‐Density Fiber‐Shaped Supercapacitors with Accelerated Pseudocapacitive Kinetics