Nsm, Johari and Syed Adnan, Syed Bahari Ramadzan and Ahmad, N. (2022) Sodium-ion nanoionic hybrid solid electrolyte: Extended study on enhanced electrical and electrochemical properties. Solid State Ionics, 377. DOI https://doi.org/10.1016/j.ssi.2022.115882.
Full text not available from this repository.Abstract
A hybrid solid electrolyte (HSE) was successfully synthesised by infusing a novel ceramic halloysite-based Na2ZnSiO4 (Clay-NZS) with ionic liquid solution of 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl) imide (Py14TFSI IL) and sodium trifluoromethanesulfonimide (NaTFSI salt) to form Clay-NZS:IL:xSalt, where x = 0.1, 0.2, and 0.3. Microscopic images and porosity study show that the infused ionic liquid solution fill up the pores of Clay-NZS ceramic host at a maximum of 20 wt% of the sample pellet. Fourier transform infrared spectroscopy and energy dispersive X-ray show that Na+ from NaTFSI displaces Py-14(+) in Py14TFSI as the salt concentration increases, accounting for slower ionic transport in the HSE. Impedance spectroscopy shows the highest conductivity to be in Clay-NZS:IL:0.1Salt HSE with sigma = (1.1 ?+/- 0.2) x 10(-3) S cm(-1) at 300 C indicate there is a dynamic interaction between Clay-NZS ceramic host and the ionic liquid solution in an HSE setup. Its Na-ion transference number is t+ = 0.506, indicating that Na+ is the majority charge carrier in the HSE. Linear sweep voltammetry shows electrochemical stability window of up to 4.32 V at room temperature. Cyclic voltammetry showcases reversible redox reactions in the HSE. Notwithstanding, the HSE carries the potential to be an electrolyte in a rechargeable sodium-ion battery.
| Item Type: | Article |
|---|---|
| Funders: | Malaysia's Ministry of Education under the Fundamental Research Grant Scheme [Grant No:FRGS/1/2018/STG07/UM/02/9], University of Malaya under the RU grant -Faculty Programme [RF027B-2018] |
| Uncontrolled Keywords: | Hybrid solid electrolyte; Nanoionic; Halloysite clay; Ceramic composite electrolyte; Sodium-ion battery |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 04 Oct 2023 03:02 |
| Last Modified: | 04 Oct 2023 03:02 |
| URI: | http://eprints.um.edu.my/id/eprint/43024 |
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