Approaching high-performance electrode materials of ZnCo2S4 nanoparticle wrapped carbon nanotubes for supercapacitors

Yi, Ting‐Feng; Chang, Hui; Wei, Tingting; Qi, Si-Yu; Li, Yanmei; Zhu, Yan‐Rong

doi:10.1016/j.jmat.2020.11.015

Cited by 53 publications

(17 citation statements)

References 62 publications

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“…The XPS image of S 2p is shown in Figure f. The characteristic peaks located at 161.6 and 162.7 eV correspond to S, − which proves that the S element is successfully generated in NiCo 2 S 4 NFs. The XPS test results of NiCo 2 S 4 -1 are shown in Figure S2c–f.…”

Section: Results and Discussionmentioning

confidence: 81%

Metal–Organic Framework-Derived Bi₂O₃/C and NiCo₂S₄ Hollow Nanofibers for Asymmetric Supercapacitors

Wang

Zhou

Chen

et al. 2021

ACS Appl. Nano Mater.

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Asymmetric supercapacitors (ASCs) are regarded as promising energy storage devices due to their excellent electrochemical properties, especially favorable power density. In this work, both the high-performance positive electrode and negative electrode materials are designed and prepared using the electrospinning technique and a metal−organic framework (MOF)derived strategy. The obtained Bi-MOF-derived Bi 2 O 3 /C hollow nanofibers have an outstanding specific capacity (1420 F g −1 at 1 A g −1 ) and show an excellent cycling performance (92.21% retention after 4000 cycles) as negative electrodes, while the NiCo-MOF-derived NiCo 2 S 4 hollow nanofibers as positive electrodes also have an excellent specific capacity (2656 F g −1 at 1 A g −1 ), and their capacity retention is 92.11% after 4000 charge−discharge cycles. The assembled ASC device with these two electrodes displays a high energy density of 85.38 W h kg −1 and excellent cycling performance with 80% retention after 10,000 cycles. Therefore, this work not only experimentally demonstrates MOF-derived Bi 2 O 3 /C and NiCo 2 S 4 as fascinating candidate electrode materials for ASCs but also affords a method to rationally design and fabricate other electrode materials with unique hollow nanofiber structures for energy storage.

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Section: Results and Discussionmentioning

confidence: 81%

Metal–Organic Framework-Derived Bi₂O₃/C and NiCo₂S₄ Hollow Nanofibers for Asymmetric Supercapacitors

Wang

Zhou

Chen

et al. 2021

ACS Appl. Nano Mater.

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“…33,34 The CO, O–CO, and C–F peaks are hardly detected in precursor-0.5, whereas these peaks are gradually enhanced with increasing citric acid content, suggesting the increasing strength of the grafted F–C bond and cross-linking of chelators. 35–37 Two apparent components of the F–C bond at 686.8 eV and the F–V bond at 684.3 eV are observed in the F 1s spectra of the gel precursors. Similar to the C 1s spectra, the F–C bond is gradually strengthened from 0 in precursor-0.5 to a higher intensity than the F–V bond in precursor-2.…”

Section: Resultsmentioning

confidence: 99%

Effect of chelator content on the structural and electrochemical performance of Na₃V₂(PO₄)₂F₃ by sol–gel preparation

Qin

Zhao

et al. 2022

CrystEngComm

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“…And then, to remove adsorbed solvents, the samples were dried at 50 °C for 12 h. In the synthesis, urea is the source of both carbonate and hydroxyl anions, as www.mrs.org/jmr Article © The Author(s) 2021 indicated in Eqs. (7)(8)(9). The synthesis of NiCu(CO 3 )(OH) 2 is as follows (7-9) [10,27].…”

Section: Electrode Preparationmentioning

confidence: 99%

“…The application of decentralized energy resources and storage technologies in the field of portable, flexible, and smart electronics has significant Hybrid nanostructured PAN@NiCu(CO 3 )(OH) 2 composite for flexible high-performance supercapacitors www.mrs.org/jmr © The Author(s) 2021 2 Article energy. SCs have gained increasing attention owing to their fast charge and discharge rates, high power density, long cycle life, and high reliability [5][6][7]. However, endowing conventional SCs with good flexibility as well as high energy density is challenging because both charge collectors (substrates) and electrode materials can experience fracture and delamination during flexing.…”

Section: Introductionmentioning

confidence: 99%

Hybrid nanostructured PAN@NiCu(CO3)(OH)2 composite for flexible high-performance supercapacitors

Lee

Verma

Lê

et al. 2021

Journal of Materials Research

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A binder-free porous NiCu(CO3)(OH)2 composite was grown on a polyacrylonitrile (PAN) nanofiber substrate using a hydrothermal method. PAN nanofibers were fabricated by the electrospinning method, thus producing a substrate with a nano-sized diameter and high specific surface area. The composite NiCu(CO3)(OH)2 nanowires on PAN nanofibers provided the large specific surface area required for the redox reaction. Transition metal-based nanowires and nano-sized PAN substrates indicate a synergistic effect in electrochemical performance. The NiCu(CO3)(OH)2 on PAN composite showed a remarkable maximum specific capacity of 870 mAh g−1 at a current density of 3 A g−1, which indicates that it can be a suitable electrode material. In addition, an asymmetric supercapacitor with NiCu(CO3)(OH)2 on PAN composite as the cathode and graphene as the anode showed an ultra-high energy density of 89.2 W h kg−1 at a power density of 835 W kg−1 and a capacitance retention of 90.1% after 5000 cycles. Graphic abstract

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Approaching high-performance electrode materials of ZnCo2S4 nanoparticle wrapped carbon nanotubes for supercapacitors

Cited by 53 publications

References 62 publications

Metal–Organic Framework-Derived Bi₂O₃/C and NiCo₂S₄ Hollow Nanofibers for Asymmetric Supercapacitors

Metal–Organic Framework-Derived Bi₂O₃/C and NiCo₂S₄ Hollow Nanofibers for Asymmetric Supercapacitors

Effect of chelator content on the structural and electrochemical performance of Na₃V₂(PO₄)₂F₃ by sol–gel preparation

Hybrid nanostructured PAN@NiCu(CO3)(OH)2 composite for flexible high-performance supercapacitors

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Approaching high-performance electrode materials of ZnCo2S4 nanoparticle wrapped carbon nanotubes for supercapacitors

Cited by 53 publications

References 62 publications

Metal–Organic Framework-Derived Bi2O3/C and NiCo2S4 Hollow Nanofibers for Asymmetric Supercapacitors

Metal–Organic Framework-Derived Bi2O3/C and NiCo2S4 Hollow Nanofibers for Asymmetric Supercapacitors

Effect of chelator content on the structural and electrochemical performance of Na3V2(PO4)2F3 by sol–gel preparation

Hybrid nanostructured PAN@NiCu(CO3)(OH)2 composite for flexible high-performance supercapacitors

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Metal–Organic Framework-Derived Bi₂O₃/C and NiCo₂S₄ Hollow Nanofibers for Asymmetric Supercapacitors

Metal–Organic Framework-Derived Bi₂O₃/C and NiCo₂S₄ Hollow Nanofibers for Asymmetric Supercapacitors

Effect of chelator content on the structural and electrochemical performance of Na₃V₂(PO₄)₂F₃ by sol–gel preparation