Shinde, GS and Nayak, PD and Vanam, SP and Jain, SK and Pathak, AD and Sanyal, S and Balachandran, J and Barpanda, P (2019) Ultrasonic sonochemical synthesis of Na0.44MnO2 insertion material for sodium-ion batteries. In: Journal of Power Sources, 416 . pp. 50-55.
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Abstract
The energy-demanding nature of solid-state synthesis can be circumvented by using solvothermal synthesis routes involving milder heat treatment steps. Herein, we exploit one such route, ultrasonic sonochemical method, for the synthesis of Na0.44MnO2 insertion material. Using simple oxide and carbonate precursors, the target compound can be successfully prepared by restricting the final annealing (at 900 °C) to within 2 h. Rietveld analysis confirms the purity of final product assuming an orthorhombic framework (s.g. Pbam). Involving a step-wise voltage profile with the average Mn4+/Mn3+ redox potential ∼3 V (vs. Na/Na+), it delivers reversible capacity over 110 mAh.g−1 at a rate of C/10 with decent rate kinetics and cycling stability. Ultrasonic sonochemical synthesis can be employed for synthesis and rapid screening of variety of insertion materials for sodium-ion batteries.
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal of Power Sources |
| Publisher: | Elsevier B.V. |
| Additional Information: | The copyright for this article belongs to Elsevier B.V. |
| Keywords: | Cathodes; Manganese compounds; Metal ions; Redox reactions; Rietveld analysis; Sodium compounds; Sonochemistry, Capacity; Na-ion batteries; Na0.44MnO2; Reversible capacity; Solid-state synthesis; Solvothermal synthesis; Sonochemical method; Sonochemical synthesis, Sodium-ion batteries |
| Department/Centre: | Division of Chemical Sciences > Materials Research Centre |
| Date Deposited: | 30 Nov 2022 09:53 |
| Last Modified: | 30 Nov 2022 09:53 |
| URI: | https://eprints.iisc.ac.in/id/eprint/78370 |
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