Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/22455
Title: 
Authors: 
Subjects: 
Powder vapor transport
Nanostructured nickel sulphide
Initially high-charging capacity
High capacity retention
Li+ batteries
Issue Date: 
2020
Citation: 
Khan, I. A., Medwal, R., Fareed, S., Farid, A., Vas, J. V., Reddy, M. V., & Rawat, R. S. (2020). Nanostructured polycrystalline Ni3S2 as electrode material for lithium ion batteries. Materials Research Express, 7(1), Article 015517. https://doi.org/10.1088/2053-1591/ab676f
Abstract: 
We report the facile synthesis of nanostructured polycrystalline nickel sulphide (NP-Ni3S2) on Ni foil at 750 and 800 °C by employing powder vapor transport technique. X-ray diffraction patterns(XRD) confirms the formation of polycrystalline Ni3S2 phase with rhombohedral structure. Raman spectroscopy and x-ray photo-electron spectroscopy (XPS)further confirms the formation of Ni3S2 phase. Scanning electron microscopy (SEM)reveals the formation of flower shaped nanostructures of NP-Ni3S2 material. As an electrode material of Li+ batteries, the initial discharge capacities for NP-Ni3S2 materials deposited at 750 and 800 °C are found to be∼2649 mAh g−1 and∼1347 mAh g−1, respectively with initial capacity loss of∼1067 mAh g−1 and∼363 mAh g−1 after first cycle and capacities of∼931 mAh g−1 and∼818 mAh g−1 after 30 cycles for a current density of 60 mA g−1. An excellent capacity retention for NP-Ni3S2 material synthesized at 800 °C is due to its larger surface area and shorter diffusion length for mass and charge transport brought about by the flower-like porous nanostructures showing that the NP-Ni3S2 material synthesized at higher temperatures is more suitable as electrode material for Li+ batteries.
Description: 
This is the final draft, after peer-review, of a manuscript published in Material research express. The published version is available online at https://doi.org/10.1088/2053-1591/ab676f.
URI: 
DOI: 
Grant ID: 
Scholarship for POSTDOC Study
Funding Agency: 
Punjab Higher Education Commission (PHEC) Pakistan
File Permission: 
Open
File Availability: 
With file
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