Dar, Mohd Arif and Majid, S. R. and Imaduddin, Ibnu Syafiq and Satgunam, M. and Karim, Mohammad Rezaul and Arularasan, P. (2025) Quantum dots Ni/SnSe symmetrical electrodes for future supercapacitors and data storage devices. IInternational Journal of Hydrogen Energy, 103. pp. 926-936. ISSN 0360-3199, DOI https://doi.org/10.1016/j.ijhydene.2025.01.270.
Full text not available from this repository.Abstract
This study synthesizes quantum dots Ni/SnSe nanoparticles (NPs) using the precipitation technique with Ni-ion variations named NSS1, NSS2, NSS3, NSS4, NSS5, and NSS6 NPs. The synthesized NPs are characterized through different experimental methods. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) confirm the star-like flower and heterostructure nanospherical shapes of NSS1, NSS2, and NSS3 NPs. The X-ray photoelectron spectroscopy (XPS) shows the binding energy of Sn, Se, and Ni elements confirming the successful doping of Ni ions to the lattice of the SnSe compound. The Brunauer-Emmett-Teller (BET) analysis determines the increase in the surface area from 79 m2/g to 171 m2/g for NSS4 to NSS5 NPs making it suitable for supercapacitor and data storage devices. The increasing trend of specific capacity, capacitive retention, and coulombic efficiency of 84 % for quantum dot Ni/SnSe electrodes determine its ability for supercapacitor application. Further, the Raman and Fourier-transform infrared (FTIR) spectroscopy peaks observed for the NSS5 electrode after the cyclic stability explain its stability used as the symmetrical supercapacitor electrodes. The increased ferromagnetic behavior of the NSS1, NSS2, NSS3, NSS4, NSS5, and NSS6 NPs determines its tendency toward data storage applications.
| Item Type: | Article |
|---|---|
| Funders: | BOLD Refresh Postdoctoral fellowship [Grant No: 10791206], King Saud University [Grant No: RSPD2025R956], SATU Joint Research Grant, University Malaya [Grant No: ST033-2019; ST038-2023] |
| Uncontrolled Keywords: | Precipitation technique; Supercapacitors; Data storage applications |
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 01 Oct 2025 08:25 |
| Last Modified: | 01 Oct 2025 08:25 |
| URI: | http://eprints.um.edu.my/id/eprint/47981 |
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