التفاصيل البيبلوغرافية
| العنوان: |
Shock wave pulsed strategy on green synthesized nickel oxide nanoparticles: Structural, morphological, and electrochemical performance. |
| المؤلفون: |
Kumar, Sundararajan Ashok1,2 (AUTHOR) sashokkumar1093@gmail.com, Inbanathan, Savariroyan Stephen Rajkumar1,2 (AUTHOR) stephenrajkumarinbanathan@americancollege.edu.in, Vignesh, Rajendran Babhu3 (AUTHOR), Rosaline, Daniel Rani4 (AUTHOR), Kamalam, Beaula Ruby2 (AUTHOR), Umar, Ahmad1,5,6,7 (AUTHOR) ahmadumar786@gmail.com, Ibrahim, Ahmed A.5,6 (AUTHOR), Akbar, Sheikh7 (AUTHOR), Dhas, S.A. Martin Britto8,9 (AUTHOR), Baskoutas, Sotirios10 (AUTHOR) |
| المصدر: |
Ceramics International. Feb2025, Vol. 51 Issue 4, p4509-4520. 12p. |
| مصطلحات موضوعية: |
*FIELD emission electron microscopy, *NICKEL oxide, *RIETVELD refinement, *TEA extracts, *IMPEDANCE spectroscopy, *SHOCK waves |
| مستخلص: |
This study presents a novel eco-friendly approach for the synthesis of Nickel Oxide nanoparticles (NiO NPs) utilizing green tea extract as a reducing agent, with a particular focus on their potential applications in electrochemical systems. Following synthesis, the NiO NPs were subjected to shock wave treatment to systematically investigate their structural, molecular, and morphological stability. X-ray Diffraction (XRD) analysis unequivocally confirms the cubic phase of both controlled and shock-pulsed NiO NPs, a finding substantiated by Rietveld refinement analysis. Microstrain, lattice stress, and energy density parameters were meticulously calculated using the Williamson-Hall (W-H) method, providing insights into the material's inherent characteristics. Morphological examinations employing Field Emission Scanning Electron Microscopy (FESEM) revealed a spherical configuration for both controlled and shock wave-treated NiO NPs, further elucidating the impact of shock wave treatment on the nanostructure. The electrochemical performances of the synthesized NiO NPs were systematically evaluated through cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) measurements. Impressively, the CV curves exhibited specific capacitances of 296, 194, 158, and 248 F g−1 at a scan rate of 5 mV s−1 for controlled and shock wave pulsed NiO NPs. GCD measurements at 2 A g−1 indicated specific capacitances of 140, 83, 80, and 133 F g−1 for controlled, 50, 100, and 150 shock-pulsed NiO NPs, respectively. Electrochemical Impedance Spectroscopy (EIS) further underscored the advantageous features of shock wave-treated NiO NPs, showcasing low internal resistance values compared to their controlled counterparts. The observed electrochemical results strongly advocate for the superior supercapacitance performance of shock wave-treated, green-synthesized NiO NPs, thus emphasizing their potential for advanced energy storage applications. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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