Selenium-rich nickel cobalt bimetallic selenides with core–shell architecture enable superior hybrid energy storage devices

Liu, Yilin; Li, Huaming; Wang, Gui‐Gen; Li, Fēi; Kang, Qi; Zhang, Huayu; Han, Jiecai

doi:10.1039/c9nr10396a

Cited by 69 publications

(42 citation statements)

References 53 publications

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“…The flexible CSMR//F-MWCNT full cell delivers a high energy density of 44.64 Wh/kg at a power density of 22.32 W/kg, and at high current density the energy density was still maintained to be 9.47 Wh/kg at a power density of 54.57 W/kg. The obtained energy and power density features for the CoSe 2 /rGO/MWCNT//F-MWCNT ASC competes with the above symmetric devices as well as the previously reported ASC devices including 2D-2D MoSe 2 /Graphene (1800 W/kg, 26.6 Wh/kg), NiCo bimetallic selenide//AC (842.7 W/kg, 37.54 Wh/kg), WSe 2 /rGO (400 W/kg, 34.5 Wh/kg), NiSe 2 (749.3 W/kg, 35.2 Wh/kg), MnSe 2 /MWCNT(2250 W/kg, 39.45 Wh/kg), CoSe 2 nanosheets (144.1 W/kg, 20.2 Wh/kg), CoSe 2 /NC-NF//AC (980 W/kg, 40.9 Wh/kg), NiSe@MoSe 2 //NPMCN (415 W/kg, 32.6 Wh/kg), MoSe 2 /MWCNT-S (15000 W/kg,17.9 Wh/kg), MoSe 2 /MWCNT-AS (964 W/kg, 35.6 Wh/kg), CoSe 2 /N-doped carbon nanowalls (1914.7 W/kg, 32.2 Wh/kg), and Ni(OH) 2 /N-doped MWCNT (1500 W/kg, 43.75 Wh/kg) SI Figure S10b shows the well maintained CV curves of the ASC under multiple scanning rates (5–40 mV/s); however, a minor shift of oxidation peaks toward the higher potential direction and the reduction peaks shifting toward the lower potential direction may imply the rise of internal diffusion resistance.…”

Section: Resultssupporting

confidence: 85%

Stabilization of Orthorhombic CoSe₂ by 2D-rGO/MWCNT Heterostructures for Efficient Hydrogen Evolution Reaction and Flexible Energy Storage Device Applications

Samal

Mane

Bhat

et al. 2021

ACS Appl. Energy Mater.

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In view of recent environmental concerns, development of sustainable as well as renewable energy sources, such as the production of hydrogen through electro-reduction of water and energy storage devices in particular high power density as well as eco-friendly supercapacitors have become exigency for energy security. Herein, cobalt selenides (CoSe 2 ) and their carbon allotropic heterostructures have been synthesized and explored for bifunctional applications. The designed CoSe 2 /rGO/MWCNT heterostructure with an effective interface construction possessed enhanced HER (η 20 :131 mV, Tafel slope: 52 mV/ dec, stable up to ∼8.5 h) in alkaline pH. Owing to its storage performance, the asymmetric CoSe 2 /rGO/MWCNT//F-MWCNT device also proved to have excellent high capacitance (23.73 F/g at mass normalized current density of 30 A/g), high energy density (44.64 Wh/kg at a power density of 22.32 W/kg @ 6 A/g), and good cycling stability (91.03% capacitance retention after 3000 cycles). The experimental data are also supported by the results from density functional theory simulations in terms of the computed overpotential for HER activity and the quantum capacitance for charge storage performance. The interactions between CoSe 2 and carbon allotropes CNT/rGO are due to charge transfer from the Co 3d orbital of CoSe 2 to the C 2p orbital. Because of this interaction, the density of states shows enhancement near the Fermi level for hybrid structures, which indicates an increase in the conductivity of the material. The theoretical computed overpotential for HER activity follows the trend CoSe 2 > CoSe 2 /MWCNT > CoSe 2 /rGO > CoSe 2 /rGO/ MWCNT, supporting the experimental data. Also, the quantum capacitance is highest for the ternary heterostructure CoSe 2 /rGO/ MWCNT, justifying its superior charge storage performance as obtained from the experimental data. This work provides technological insights into the design of an efficient and cost-effective catalyst for sustainable hydrogen production and flexible energy storage applications.

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Section: Resultssupporting

confidence: 85%

Stabilization of Orthorhombic CoSe₂ by 2D-rGO/MWCNT Heterostructures for Efficient Hydrogen Evolution Reaction and Flexible Energy Storage Device Applications

Samal

Mane

Bhat

et al. 2021

ACS Appl. Energy Mater.

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“…As shown in Fig. 6(d), the ASC device performs well with a high energy density of 42.9 Wh•kg −1 at a power density of 800 W•kg −1 , and remains at 13.6 Wh•kg −1 when the power density increases to 8,000 W•kg −1 , outperforming the previously reported asymmetric cells [41][42][43][44][45][46]. Figure 6(e) demonstrates impressive cycling stability of Z-Co2NiSe4/ BWC//a-BWC ASC at a current density of 10 A•g −1 .…”

Section: Resultsmentioning

confidence: 57%

Zephyranthes-like Co2NiSe4 arrays grown on 3D porous carbon frame-work as electrodes for advanced supercapacitors and sodium-ion batteries

Xue

Guo

et al. 2021

Nano Res.

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Developing suitable electrode materials for electrochemical energy storage devices by biomorph assisted design has become a fascinating topic due to the fantastic properties derived from bio-architectures. Herein, zephyranthes-like Co 2 NiSe 4 arrays grown on butterfly wings derived three-dimensional (3D) carbon framework (Z-Co 2 NiSe 4 /BWC) is fabricated via hydrothermal assembly and further conversion method. Benefiting from its unique structure and multi-components, the obtained Z-Co 2 NiSe 4 /BWC electrode for supercapacitor delivers an excellent specific capacitance of 2,280 F•g −1 at 1 A•g −1 . Impressively, the constructed asymmetric supercapacitor using Co 2 NiSe 4 /BWC as positive electrode and activated butterfly wings carbon as negative electrode acquires a high energy density of 42.9 Wh•kg −1 at a power density of 800 W•kg −1 with robust stability of 94.6% capacitance retention at 10 A•g −1 after 5,000 cycles. Moreover, the Z-Co 2 NiSe 4 /BWC as anode for sodium-ion batteries exhibits a high specific capacity of 568 mAh•g −1 at 0.1 A•g −1 and high cycling stability (maintaining 80.1% of the second cycle after 100 cycles). The outstanding electrochemical performances are ascribed to that the synergistic effect of bimetallic selenides and N-doped carbon improves electrochemical activities and conductivity. One-dimensional (1D) nanoneedles grown on 3D porous framework increase the exposure of redox-active sites, endow adequate transmission channels of electrons/ions, and guarantee stability of the electrode during charge/discharge processes. This study will shed light on the avenue towards extending such nanohybrids to excellent energy storage applications.

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“…x Furthermore, other metal selenides such as coral-like NiSe 2 @ graphene, 131 hierarchical two-atom-layered WSe 2 /C ultrathin crumpled nanosheets, 132 and (NiCo) 9 Se 8 /(NiCo) 0.85 Se spheres 133 have been employed as anode materials for K + storage. The findings of these studies confirm the potential of metal selenides as the anodes of K ion ESSs.…”

Section: Battery-type Anode Materialsmentioning

confidence: 99%

Recent Advances and Perspectives of Battery-Type Anode Materials for Potassium Ion Storage

et al. 2021

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Potassium ion energy storage devices are competitive candidates for grid-scale energy storage applications owing to the abundancy and cost-effectiveness of potassium (K) resources, the low standard redox potential of K/K+, and the high ionic conductivity in K-salt-containing electrolytes. However, the sluggish reaction dynamics and poor structural instability of battery-type anodes caused by the insertion/extraction of large K+ ions inhibit the full potential of K ion energy storage systems. Extensive efforts have been devoted to the exploration of promising anode materials. This Review begins with a brief introduction of the operation principles and performance indicators of typical K ion energy storage systems and significant advances in different types of battery-type anode materials, including intercalation-, mixed surface-capacitive-/intercalation-, conversion-, alloy-, mixed conversion-/alloy-, and organic-type materials. Subsequently, host–guest relationships are discussed in correlation with the electrochemical properties, underlying mechanisms, and critical issues faced by each type of anode material concerning their implementation in K ion energy storage systems. Several promising optimization strategies to improve the K+ storage performance are highlighted. Finally, perspectives on future trends are provided, which are aimed at accelerating the development of K ion energy storage systems.

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Selenium-rich nickel cobalt bimetallic selenides with core–shell architecture enable superior hybrid energy storage devices

Abstract: Selenide-rich bimetallic selenide spheres with core–shell nanostructure were rationally designed and synthesized towards superior battery-supercapacitor hybrid device as the cathode electrode by selenizing hydrothermal-derived Ni–Co spheres.

Cited by 69 publications

References 53 publications

Stabilization of Orthorhombic CoSe₂ by 2D-rGO/MWCNT Heterostructures for Efficient Hydrogen Evolution Reaction and Flexible Energy Storage Device Applications

Stabilization of Orthorhombic CoSe₂ by 2D-rGO/MWCNT Heterostructures for Efficient Hydrogen Evolution Reaction and Flexible Energy Storage Device Applications

Zephyranthes-like Co2NiSe4 arrays grown on 3D porous carbon frame-work as electrodes for advanced supercapacitors and sodium-ion batteries

Recent Advances and Perspectives of Battery-Type Anode Materials for Potassium Ion Storage

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Selenium-rich nickel cobalt bimetallic selenides with core–shell architecture enable superior hybrid energy storage devices

Abstract: Selenide-rich bimetallic selenide spheres with core–shell nanostructure were rationally designed and synthesized towards superior battery-supercapacitor hybrid device as the cathode electrode by selenizing hydrothermal-derived Ni–Co spheres.

Cited by 69 publications

References 53 publications

Stabilization of Orthorhombic CoSe2 by 2D-rGO/MWCNT Heterostructures for Efficient Hydrogen Evolution Reaction and Flexible Energy Storage Device Applications

Stabilization of Orthorhombic CoSe2 by 2D-rGO/MWCNT Heterostructures for Efficient Hydrogen Evolution Reaction and Flexible Energy Storage Device Applications

Zephyranthes-like Co2NiSe4 arrays grown on 3D porous carbon frame-work as electrodes for advanced supercapacitors and sodium-ion batteries

Recent Advances and Perspectives of Battery-Type Anode Materials for Potassium Ion Storage

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Resources

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Stabilization of Orthorhombic CoSe₂ by 2D-rGO/MWCNT Heterostructures for Efficient Hydrogen Evolution Reaction and Flexible Energy Storage Device Applications

Stabilization of Orthorhombic CoSe₂ by 2D-rGO/MWCNT Heterostructures for Efficient Hydrogen Evolution Reaction and Flexible Energy Storage Device Applications