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Electrochemical performance of copper phosphosulfide (Cu3PS4) towards magnesium ion storage

Tripathy, D and Sampath, S (2023) Electrochemical performance of copper phosphosulfide (Cu3PS4) towards magnesium ion storage. In: Electrochimica Acta, 453 .

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Official URL: https://doi.org/10.1016/j.electacta.2023.142324


Rechargeable magnesium batteries are good alternates for large scale energy storage applications and development of electrolytes as well as electrode materials are being pursued. In the present study, a cost-effective electrode material made of naturally abundant elements, Cu3PS4 is proposed for rechargeable magnesium battery. The electrochemical performance of Cu3PS4 is evaluated in different potential ranges. Further enhancement in the performance is achieved by using a carbon nanotube composite. The optimized electrode can deliver high capacity of 130 mAh g−1 at 50 mA g−1 current density and high cycling stability of 500 cycles with 80 % capacity retention at 1000 mA g−1 current density at room temperature. The possible mechanism for Mg2+ storage is probed by ex-situ X-ray diffraction (XRD), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS).

Item Type: Journal Article
Publication: Electrochimica Acta
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to Elsevier Ltd.
Keywords: Carbon nanotubes; Cost effectiveness; Electrodes; Magnesium; Metal ions; Secondary batteries; Storage (materials); Sulfur compounds; X ray photoelectron spectroscopy, Electrochemical performance; Electrode material; High capacity; High-capacity; Ion storage; Magnesium ions; Magnesium storage; MWCNT composite; MWCNT's; Rechargeable magnesium battery, Copper compounds
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 28 May 2023 05:44
Last Modified: 28 May 2023 05:44
URI: https://eprints.iisc.ac.in/id/eprint/81490

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