Jafer, Rashida and Alsufyani, Sarah A. A. and Iqbal, Javed and Ansari, Mohammad Omaish and Numan, Arshid and Bashir, Shahid and Hasan, P. M. Z. and Wageh, S. (2023) Silver decorated and Graphene Wrapped Polypyrrole@Ni(OH)(2) quaternary nanocomposite for high performance energy storage devices. Polymers, 15 (5). ISSN 2073-4360, DOI https://doi.org/10.3390/polym15051267.
Full text not available from this repository.Abstract
In this work, silver (Ag) anchored over graphene (GN) wrapped polypyrrole (PPy)@ nickel hydroxide (Ni(OH)(2)) nanocomposites were synthesized through a combination of oxidative polymerization and hydrothermal processes. The synthesized Ag/GN@PPy-Ni(OH)(2) nanocomposites were characterized for their morphological characteristics by field emission scanning electron microscopy (FESEM), while the structural investigations were done by X-ray diffraction and X-ray photoelectron spectroscopy (XPS). The FESEM studies showed Ni(OH)(2) flakes and silver particles attached over the surface of PPy globules, along with the presence of GN sheets and spherical silver particles. The structural analysis also showed the presence of constituents, i.e., Ag, Ni(OH)(2), PPy, GN, and their interaction, therefore vouching that the synthesis protocol is efficacious. The electrochemical (EC) investigations were done in potassium hydroxide (1 M KOH) using a three electrode setup. The quaternary Ag/GN@PPy-Ni(OH)(2) nanocomposite electrode showed the highest specific capacity of 237.25 C g(-1). The highest electrochemical performance of the quaternary nanocomposite is associated with the synergistic/additional effect of PPy, Ni(OH)(2), GN, and Ag. The assembled supercapattery with Ag/GN@PPy-Ni(OH)(2) as a positive and activated carbon (AC) as a negative electrode displayed eminent energy density of 43.26 Wh kg(-1) with the associated power density of 750.00 W kg(-1) at a current density of 1.0 A g(-1). The cyclic stability of the supercapattery (Ag/GN@PPy-Ni(OH)(2)//AC), comprising a battery-type electrode, displayed a high cyclic stability of 108.37% after 5500 cycles.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education Saudi Arabia [Grant No: IFPHI-284-130-2020], King Abdulaziz University |
| Uncontrolled Keywords: | Energy storage; Supercapattery; Quaternary nanocomposite; Graphene; Polypyrrole; Nickel hydroxide |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > UM Power Energy Dedicated Advanced Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 27 Nov 2024 04:07 |
| Last Modified: | 28 Nov 2024 03:28 |
| URI: | http://eprints.um.edu.my/id/eprint/38507 |
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