Surface Selenization of NiCo-Layered Double Hydroxide Nanosheets for High-Performance Supercapacitors
Source abstract
Abstract
Due to their unique spatial structures, layered double hydroxides (LDHs) have been considered as prospective electrode materials for supercapacitors. In this work, several NiCo-LDH materials are obtained via a facile selenization process. This can improve the conductivity and reduce the electrochemical impedance of the samples. The 0.4Se-NiCo-LDH materials deliver a specific capacitance of 1396 F/g at 1 A/g. The capacity retention rate can reach 91.38% after 10,000 cycles. In addition, using the prepared materials as a positive electrode, an asymmetric supercapacitor is constructed. It offers an energy density of 60 Wh/kg at a power density of 2700 W/kg, demonstrating that the synthesized samples possess promising applications in future flexible energy-storage systems.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Layered Double Hydroxides Synthesis and Applications · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China
Funding
National Natural Science Foundation of China
References (39)
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1. Enhanced electrochemical performance of Zn/VOx batteries by a carbon encapsulation strategy10.1021/acsami.2c00001 ↗
2. Hydrogen and sodium ions cointercalated vanadium dioxide electrode materials with enhanced zinc ion storage capacity10.1016/j.nanoen.2021.106124 ↗
3. Kamel, A.A., Rezk, H., Shehata, N., and Thomas, J. (2019). Energy management of a DC microgrid composed of photovoltaic/fuel cell/battery/supercapacitor systems. Batteries, 5.10.3390/batteries5030063 ↗
4. High-efficient NiCo layered double hydroxide electrocatalyst10.1039/D2NJ03881A ↗
5. Recent status and future perspectives of ultracompact and customizable micro-supercapacitors10.26599/NRE.2022.9120018 ↗
6. Rastabi, S.A., Mamoory, R.S., Blomquist, N., Phadatare, M., and Olin, H. (2020). Synthesis of a NiMoO4/3D-rGO nanocomposite via starch medium precipitation method for supercapacitor performance. Batteries, 6.10.3390/batteries6010005 ↗
7. Liu, X.Y., Wang, M.D., and Wu, X. (2022). Tailoring Electrochemical Performance of Co3O4 Electrode Materials by Mn Doping. Molecules, 27.10.3390/molecules27217344 ↗
8. Porphyrin-based framework materials for energy conversion10.26599/NRE.2022.9120009 ↗
9. Toward high performance asymmetric hybrid capacitor by electrode optimization10.1039/C9QI00927B ↗
10. High-performance flexible hybrid capacitors by regulating NiCoMoS@Mo0.75-LDH electrode structure10.1016/j.materresbull.2022.112073 ↗
11. Recent advances in nanostructured heterogeneous catalysts for N-cycle electrocatalysis10.26599/NRE.2022.9120010 ↗
12. High performance hybrid supercapacitor based on hierarchical MoS2/Ni3S2 metal chalcogenide10.1016/j.cclet.2018.12.024 ↗
13. Exfoliation of layered double hydroxides for enhanced oxygen evolution catalysis10.1038/ncomms5477 ↗
14. Ultrathin nanoflakes of cobalt-manganese layered double hydroxide with high reversibility for asymmetric supercapacitor10.1016/j.jpowsour.2015.12.097 ↗
15. Integrating ultrathin polypyrrole framework on nickel-cobalt layered double hydroxide as an amperometric sensor for nonenzymatic glucose determination10.1002/elan.201800362 ↗
16. Preparation of Ni-Al layered double hydroxide hollow microspheres for supercapacitor electrode10.1016/j.cej.2018.01.024 ↗
17. An investigation of ultrathin nickel-iron layered double hydroxide nanosheets grown on nickel foam for high-performance supercapacitor electrodes10.1016/j.jallcom.2017.04.197 ↗
18. Three-dimensional hierarchical NiCo layered double hydroxide nanosheet arrays decorated with noble metals nanoparticles for enhanced urea electrocatalysis10.1002/celc.201901423 ↗
19. NiCo layered double hydroxide nanosheets with enhanced electrochemical performance10.1016/j.jallcom.2022.163926 ↗
20. Silver incorporated partially reduced NiCo-layered double hydroxide frameworks for asymmetric supercapacitors10.1016/j.est.2020.101578 ↗
21. Vanadium doped hierarchical porous nickel-cobalt layered double hydroxides nanosheet arrays for high-performance supercapacitor10.1016/j.jallcom.2020.155604 ↗
22. Molybdenum selenide electrocatalysts for electrochemical hydrogen evolution reaction10.1002/celc.201900448 ↗
23. Facile fabrication of MXene supported nickel-cobalt selenide ternary composite via one-step hydrothermal for high-performance asymmetric supercapacitors10.1016/j.jallcom.2021.163354 ↗
24. In-situ construction of heterostructure (Ni, Co)Se2 nanoarrays derived from cone-like ZIF-L for high performance hybrid supercapacitors10.1016/j.jcis.2021.11.036 ↗
25. Monodisperse metallic NiCoSe2 hollow sub-microspheres: Formation process, intrinsic charge-storage mechanism, and appealing pseudocapacitance as highly conductive electrode for electrochemical supercapacitors10.1002/adfm.201705921 ↗
26. Hierarchical ternary Ni-Co-Se nanowires for high-performance supercapacitor device design10.1039/C6DT03863H ↗
27. Template ion-exchange synthesis of Co-Ni composite hydroxides nanosheets for supercapacitor with unprecedented rate capability10.1016/j.cej.2021.134319 ↗
28. Interlaced Ni-Co LDH nanosheets wrapped Co9S8 nanotube with hierarchical structure toward high performance supercapacitors10.1016/j.cej.2018.06.113 ↗
29. Constructing a hexagonal copper-coin-shaped NiCoSe2@NiO@CoNi2S4@CoS2 hybrid nanoarray on nickel foam as a robust oxygen evolution reaction electrocatalyst10.1039/C8TA06084C ↗
30. Hierarchical nanocomposite of carbon-fiber-supported Ni-Co-based layered double-hydroxide nanosheets decorated with (NiCo)Se2 nanoparticles for high performance energy storage10.1016/j.jcis.2021.09.181 ↗
31. Bimetallic nickel cobalt selenides: A new kind of electroactive material for high-power energy storage10.1039/C5TA08366D ↗
32. Morphological modulation of NiCo2Se4 nanotubes through hydrothermal selenization for asymmetric supercapacitor10.1016/j.electacta.2020.136837 ↗
33. Ni Foam substrates modifified with a ZnCo2O4 nanowire-coated Ni(OH)2 nanosheet electrode for hybrid capacitors and electrocatalysts10.1021/acsanm.1c00825 ↗
34. Nickel-cobalt diselenide 3D mesoporous nanosheet networks supported on Ni Foam: An all-pH highly efficient integrated electrocatalyst for hydrogen evolution10.1002/adma.201606521 ↗
35. High performance asymmetric supercapacitor designed with a novel NiSe@MoSe2 nanosheet array and nitrogen doped carbon nanosheet10.1021/acssuschemeng.7b00729 ↗
36. Flower-like Ni0.85Se nanosheets with enhanced performance toward hybrid supercapacitor10.1016/j.electacta.2019.134701 ↗
37. Facilely hierarchical growth of N-doped carbon-coated NiCo2O4 nanowire arrays on Ni foam for advanced supercapacitor electrodes
38. Mesoporous NiCo2S4 nanoparticles as high-performance electrode materials for supercapacitors10.1016/j.jpowsour.2014.09.144 ↗
39. Water-promoted zeolitic imidazolate framework-67 transformation to Ni-Co layered double hydroxide hollow microsphere for supercapacitor electrode material10.1007/s10854-017-6656-5 ↗