NiCo2O4 nanofeathers derived from prussian blue analogues with enhanced electrochemical performance for supercapacitor

Gao, Jiangshan; Liu, Zhiming; Lin, Yuan-Chung; Tang, Yuanzheng; Lian, Tongtong; He, Yan

doi:10.1016/j.cej.2020.124368

Cited by 76 publications

(32 citation statements)

References 40 publications

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“…This should result from the unique hierarchical structure and enhanced ion-accessible surface . Moreover, the oxygen vacancies in Ni x Co 3– x O 4 /NF introduced by annealing treatment in air do play an important part in the enhancement of rate capacitance . In addition, Ni x Co 3– x O 4 /NF is superior in capacitance compared to other reported oxide materials (Table ).…”

Section: Resultsmentioning

confidence: 99%

Controllable Transformation of Metal–Organic Framework Nanosheets into Oxygen Vacancy Ni_xCo_3–xO₄ Arrays for Ultrahigh-Capacitance Supercapacitors with Long Lifespan

et al. 2022

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The amino-functionalized bimetal NH2-NiCo-MOF nanosheet array is first fabricated on Ni foam substrates and then controllably transformed into oxygen vacancy bimetal oxide arrays by simply thermal annealing in air. This NiCo-based oxide array (Ni x Co3–x O4/NF) achieves high capacitance (2484 F g–1 at 1 A g–1), excellent rate performance (91.4%), and long cycling life when assessed as promising electrode material for supercapacitors. Notably, the existing oxygen vacancy in Ni x Co3–x O4 promotes the electrochemical performance of Ni x Co3–x O4/NF due to the enhancement of electrical conductivity and capture capability for OH–. In addition, the assembled asymmetric supercapacitor (ASC) device exhibits an excellent energy density of 39.3 W h kg–1 at a power density of 800.2 W kg–1, which still remains 32.2 W h kg–1 even at a high power density of 7994.5 W kg–1. Furthermore, a light-emitting diode can be lightened for more than 6 min, demonstrating a great potential for practical application of ASC devices. This work knocks on the door of a feasible strategy for designing and synthesizing 2D metal oxide nanosheet arrays with excellent electrochemical properties.

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Section: Resultsmentioning

confidence: 99%

Controllable Transformation of Metal–Organic Framework Nanosheets into Oxygen Vacancy Ni_xCo_3–xO₄ Arrays for Ultrahigh-Capacitance Supercapacitors with Long Lifespan

et al. 2022

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“…Synthesis of CC/NiCo 2 O 4 nanowire arrays CC/NiCo 2 O 4 nanowires were synthesized using conventional hydrothermal methods according to the literature. 22 In brief, 0.5 mmol nickel nitrate hexahydrate, 1.0 mmol cobalt nitrate hexahydrate and 6.0 mmol urea were dissolved in 37.5 mL DI water. Then, the mixture was moved into a 50 mL Teon-lined stainless steel autoclave.…”

Section: Materials Preparationmentioning

confidence: 99%

Interfacial engineering in amorphous/crystalline heterogeneous nanostructures as a highly effective battery-type electrode for hybrid supercapacitors

et al. 2022

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“…CR: capacitance retention percentage @ cycle numbers. arrays on flexible nickle foam (NF) were fabricated by Gao et al [30] using a novel PBA-in-hydrothermal strategy followed by thermal treatment. Benefiting from the synergistic effect of NiCo 2 O 4 1D nanoneedles and 2D nanosheets (Figure 10g,h), the NF@NiCo 2 O 4 nanofeathers based electrode exhibited a higher specific capacitance of 1540 F g −1 even at 20 A g −1 compared with that of NF@NiCo 2 O 4 nanoneedles-based electrode (1170 F g −1 ) (Figure 10i).…”

Section: C)mentioning

confidence: 99%

Toward the Design of High‐performance Supercapacitors by Prussian Blue, its Analogues and their Derivatives

Lin

Zhang

Xiong

et al. 2020

Energy & Environ Materials

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Supercapacitors (SCs) with high power output have attracted increasing attention as efficient and environmentally friendly energy storage devices. Prussian blue and its analogues (PB/PBAs) are simple coordination polymers with tunable chemical compositions and open framework. Prussian blue can act as electrode materials in its pristine form and has also been utilized to derive various metallic nanostructures for electrochemical applications due to their simple fabrication process, non‐toxic characteristics, and low price. Here, we firstly describe the charge storage mechanisms of SCs briefly followed by an introduction of the fabrication methods of PB/PBAs and their derivatives. Then, a comprehensive review on recent studies of the use of PB/PBAs and their derivatives as the electrode materials for SCs are given with a focus on strategies to improve their electrochemical performances. Finally, we discuss critical challenges in this research area and propose some general ideas for future research.

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NiCo2O4 nanofeathers derived from prussian blue analogues with enhanced electrochemical performance for supercapacitor

Cited by 76 publications

References 40 publications

Controllable Transformation of Metal–Organic Framework Nanosheets into Oxygen Vacancy Ni_xCo_3–xO₄ Arrays for Ultrahigh-Capacitance Supercapacitors with Long Lifespan

Controllable Transformation of Metal–Organic Framework Nanosheets into Oxygen Vacancy Ni_xCo_3–xO₄ Arrays for Ultrahigh-Capacitance Supercapacitors with Long Lifespan

Interfacial engineering in amorphous/crystalline heterogeneous nanostructures as a highly effective battery-type electrode for hybrid supercapacitors

Toward the Design of High‐performance Supercapacitors by Prussian Blue, its Analogues and their Derivatives

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NiCo2O4 nanofeathers derived from prussian blue analogues with enhanced electrochemical performance for supercapacitor

Cited by 76 publications

References 40 publications

Controllable Transformation of Metal–Organic Framework Nanosheets into Oxygen Vacancy NixCo3–xO4 Arrays for Ultrahigh-Capacitance Supercapacitors with Long Lifespan

Controllable Transformation of Metal–Organic Framework Nanosheets into Oxygen Vacancy NixCo3–xO4 Arrays for Ultrahigh-Capacitance Supercapacitors with Long Lifespan

Interfacial engineering in amorphous/crystalline heterogeneous nanostructures as a highly effective battery-type electrode for hybrid supercapacitors

Toward the Design of High‐performance Supercapacitors by Prussian Blue, its Analogues and their Derivatives

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Controllable Transformation of Metal–Organic Framework Nanosheets into Oxygen Vacancy Ni_xCo_3–xO₄ Arrays for Ultrahigh-Capacitance Supercapacitors with Long Lifespan

Controllable Transformation of Metal–Organic Framework Nanosheets into Oxygen Vacancy Ni_xCo_3–xO₄ Arrays for Ultrahigh-Capacitance Supercapacitors with Long Lifespan