Facile synthesis of Bi2WO6-NiO nanocomposite for supercapacitor application
subject: Cyclic voltammetry; Energy conversion and storage; High energy density; Supercapacitor
description: In order to prepare for future high-power storage-related applications, a tremendous amount of studies have been conducted on the manufacturing of high-performance supercapacitor electrodes. The hydrothermal technique was used to synthesize Bi2WO6NiO nanocomposite (NC), which was examined using FTIR, XRD, HR-TEM, EDX, FESEM, and XPS techniques. Furthermore, the Bi2WO6-NiO NC performs with an elevated specific capacity of 398.2C/g at 10 mV/s. The charge transfer resistance (Rct) and solution resistance (Rs) of Bi2WO6-NiO NC were determined as 0.81 and 0.23 ? using electrochemical impedance spectra (EIS). Bi2WO6-NiO NC extended the chargedischarge time and rate capacities, as shown by the galvanostatic chargedischarge (GCD) analysis. Even after 2000 cycles, Bi2WO6-NiO NC cyclic stability was superior with a capacitive retention of 89.3 %. A power density of 6750 W/kg resulted from the constructed asymmetric supercapacitor (ASC) device based on Bi2WO6-NiO/AC, exhibiting an energy density of 32.5 Wh/kg. Additionally, the ASC maintains high cyclic stability with 90.8 % of initial capacity, even after 2000 chargedischarge cycles in a row. 2024 Elsevier B.V.
creator: Chelladurai, Ashwin; Veerasingam, Muthulakshmi; Kesavan, Thirunavukkarasu; Alotaibi, Nouf H.; Sangaraju, Sambasivam; Muthusamy, Krishna Kumar; Sonaimuthu, Mohandoss; Sakkarapani, Sudhahar
source: Materials Science and Engineering: B;Volume;313;Issue;;Article No.;117939;
publisher: Elsevier Ltd
date: 01-01-2025
rights: Restricted Access; Hardcopy may be available in the library
relation: ISSN: 9215107; CODEN: MSBTE
format: online
language: English
type: Article
coverage: Chelladurai A., Department of Physics, Alagappa University, Tamilnadu, Karaikudi, 630 003, India; Veerasingam M., Department of Chemistry, Mount Zion College of Engineering and Technology, Thirumayam, Pudukkottai, 622 507, India; Kesavan T., Department of Physics, Bharath Institute of Higher Education and Research, Chennai, 600073, India; Alotaibi N.H., Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia; Sangaraju S., National Water and Energy Center, United Arab Emirates University, Al Ain, 15551, United Arab Emirates; Muthusamy K.K., Department of Physics and Electronics, CHRIST University, Bengaluru, 560 029, India; Sonaimuthu M., School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea; Sakkarapani S., Department of Physics, Alagappa University, Tamilnadu, Karaikudi, 630 003, India