Xaba, NqobileModibedi, Remegia MKhotseng, LEMathe, Mahlanyane KPalaniyandy, Nithyadharseni2019-10-092019-10-092019-11Xaba, N. et al. 2019. Underpotential deposition of SnBi thin films for sodium ion batteries: The effect of deposition potential and Sn concentration. Journal of Alloys and Compounds, vol. 808, pp. 1-130925-83881873-4669https://doi.org/10.1016/j.jallcom.2019.151658https://www.sciencedirect.com/science/article/pii/S0925838819328853http://hdl.handle.net/10204/11162Copyright: 2019 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website. The definitive version of the work is published in Journal of Alloys and Compounds, vol. 808, pp. 1-13Bimetallic SnBi film was deposited on a Cu foil substrate via the electrochemical atomic layer deposition (E-ALD) technique. The deposition attainment of Sn and Bi were investigated using cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The deposition potential of Bi was varied in the underpotential deposition (UPD) region and the concentration of Sn was varied in the SnBi bimetallic material. The materials were characterised using field emission scanning electron microscopy coupled with energy dispersive spectroscopy (FE-SEM/EDS) for morphology and elemental distribution, focused ion beam scanning electron microscopy (FIBSEM) for thickness, X-ray diffraction (XRD) for crystallinity and inductively coupled plasma mass spectroscopy (ICP-MS) for composition measurements. Bi deposited at different UPD regions was structurally different. The deposits were crystalline SnBi materials containing Sn, Bi and other phases of Cu and Sn. Bi was concentrated on the surface, while Sn was distributed evenly across the film. The SnBi electrodes were tested as anode materials in Na-ion batteries using galvanostatic cycling (GC), CV and electrochemical impedance spectroscopy (EIS). Initial discharge capacities of 1900 mAh g-1 for SnBi (1:1) and 341 mAh g-1 for SnBi (3:1) electrodes at 38.5 mA g-1 were obtained, while the electrodes suffered capacity loss after 10 cycles.enBismuthNa-ion batteriesUnderpotential depositionArticleXaba, N., Modibedi, R. M., Khotseng, L., Mathe, M. K., & Palaniyandy, N. (2019). Underpotential deposition of SnBi thin films for sodium ion batteries: The effect of deposition potential and Sn concentration. http://hdl.handle.net/10204/11162Xaba, Nqobile, Remegia M Modibedi, LE Khotseng, Mahlanyane K Mathe, and Nithyadharseni Palaniyandy "Underpotential deposition of SnBi thin films for sodium ion batteries: The effect of deposition potential and Sn concentration." (2019) http://hdl.handle.net/10204/11162Xaba N, Modibedi RM, Khotseng L, Mathe MK, Palaniyandy N. Underpotential deposition of SnBi thin films for sodium ion batteries: The effect of deposition potential and Sn concentration. 2019; http://hdl.handle.net/10204/11162.TY - Article AU - Xaba, Nqobile AU - Modibedi, Remegia M AU - Khotseng, LE AU - Mathe, Mahlanyane K AU - Palaniyandy, Nithyadharseni AB - Bimetallic SnBi film was deposited on a Cu foil substrate via the electrochemical atomic layer deposition (E-ALD) technique. The deposition attainment of Sn and Bi were investigated using cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The deposition potential of Bi was varied in the underpotential deposition (UPD) region and the concentration of Sn was varied in the SnBi bimetallic material. The materials were characterised using field emission scanning electron microscopy coupled with energy dispersive spectroscopy (FE-SEM/EDS) for morphology and elemental distribution, focused ion beam scanning electron microscopy (FIBSEM) for thickness, X-ray diffraction (XRD) for crystallinity and inductively coupled plasma mass spectroscopy (ICP-MS) for composition measurements. Bi deposited at different UPD regions was structurally different. The deposits were crystalline SnBi materials containing Sn, Bi and other phases of Cu and Sn. Bi was concentrated on the surface, while Sn was distributed evenly across the film. The SnBi electrodes were tested as anode materials in Na-ion batteries using galvanostatic cycling (GC), CV and electrochemical impedance spectroscopy (EIS). Initial discharge capacities of 1900 mAh g-1 for SnBi (1:1) and 341 mAh g-1 for SnBi (3:1) electrodes at 38.5 mA g-1 were obtained, while the electrodes suffered capacity loss after 10 cycles. DA - 2019-11 DB - ResearchSpace DP - CSIR KW - Bismuth KW - Na-ion batteries KW - Underpotential deposition LK - https://researchspace.csir.co.za PY - 2019 SM - 0925-8388 SM - 1873-4669 T1 - Underpotential deposition of SnBi thin films for sodium ion batteries: The effect of deposition potential and Sn concentration TI - Underpotential deposition of SnBi thin films for sodium ion batteries: The effect of deposition potential and Sn concentration UR - http://hdl.handle.net/10204/11162 ER -