Hydrothermally tailored three-dimensional Ni-V layered double hydroxide nanosheets as high-performance hybrid supercapacitor applications

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dc.contributor.authorTyagi, Ankit
dc.contributor.authorJoshi, Manish Chandra
dc.contributor.authorShah, Asmita
dc.contributor.authorThakur, Vijay Kumar
dc.contributor.authorGupta, Raju Kumar
dc.date.accessioned2019-02-22T12:47:00Z
dc.date.available2019-02-22T12:47:00Z
dc.date.issued2019-02-14
dc.description.abstractHere, we report a facile and easily scalable hydrothermal synthetic strategy to synthesize Ni–V layered double hydroxide applications. NiV LDH nanosheets with varying Ni-to-V ratios were prepared. Three-dimensional curved nanosheets of Ni0.80V0.20 LDH showed better electrochemical performance compared to other synthesized NiV LDHs. The electrode coated with Ni0.80V0.20 LDH nanosheets in a three-electrode cell configuration showed excellent pseudocapacitive behavior, having a high specific capacity of 711 C g–1 (1581 F g–1) at a current density of 1 A g–1 in 2 M KOH. The material showed an excellent rate capability and retained the high specific capacity of 549 C g–1 (1220 F g–1) at a current density of 10 A g–1 and low internal resistances. Owing to its superior performance, Ni0.80V0.20 LDH nanosheets were used as positive electrode and commercial activated carbon was used as negative electrode for constructing a hybrid supercapacitor (HSC) device, having a working voltage of 1.5 V. The HSC device exhibited a high specific capacitance of 98 F g–1 at a current density of 1 A g–1. The HSC device showed a higher energy density of 30.6 Wh kg–1 at a power density of 0.78 kW kg–1 and maintained a high value of 24 Wh kg–1 when the power density was increased to 11.1 kW kg–1. The performance of NiV LDHs nanosheets indicates their great potential as low-cost electrode material for future energy-storage devicesen_UK
dc.identifier.citationTyagi A, Joshi MC, Shah A, Thakur VK and Gupta RK., Hydrothermally tailored three-dimensional Ni-V layered double hydroxide nanosheets as high-performance hybrid supercapacitor applications, ACS Omega, Volume 4, Issue 2, 2019, pp.3257-3267en_UK
dc.identifier.issn2470-1343
dc.identifier.urihttp://doi.org/10.1021/acsomega.8b03618
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/13931
dc.language.isoenen_UK
dc.publisherAmercian Chemical Societyen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectManufacturingen_UK
dc.subjectcompositesen_UK
dc.titleHydrothermally tailored three-dimensional Ni-V layered double hydroxide nanosheets as high-performance hybrid supercapacitor applicationsen_UK
dc.typeArticleen_UK

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