Pseudocapacitive Performance of WO3/g-C3N4 Nanocomposites

Ola, Oluwafunmilola; Chen, Yu; Zhu, Yanqiu; Grant, David

Abstract

Hexagonal tungsten oxide (WO 3 ) holds great promise as an electrode material for pseudocapacitors due to its earth abundance, low cost, multiple oxidation states, high packing density (>7 g cm -3 ) and electrochemical reversibility. Here, we present the development of flexible electrodes consisting of WO 3 nanoflowers supported on graphitic carbon nitride (g-C 3 N 4 ) foams. The WO 3 /g-C 3 N 4 electrodes were prepared via a facile solvothermal approach followed by carbonization. The resulting WO 3 /g-C 3 N 4 electrodes have demonstrated excellent performance with specific capacitance of 1130 F g -1 at 0.5 A g -1 and good cyclic stability of 95% after 4,000 cycles in 0.5M H 2 SO 4 electrolyte.

Citation

Ola, O., Chen, Y., Zhu, Y., & Grant, D. (2021, September). Pseudocapacitive Performance of WO3/g-C3N4 Nanocomposites. Presented at 2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP), Odessa, Ukraine

• Presentation Conference Type: Edited Proceedings
• Conference Name: 2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)
• Start Date: Sep 5, 2021
• End Date: Sep 11, 2021
• Online Publication Date: Dec 23, 2021
• Publication Date: Dec 23, 2021
• Deposit Date: Jan 4, 2022
• Publisher: Institute of Electrical and Electronics Engineers
• Book Title: 2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP)
• ISBN: 9781665429887
• DOI: https://doi.org/10.1109/nap51885.2021.9656569
• Public URL: https://nottingham-repository.worktribe.com/output/7164360
• Publisher URL: https://ieeexplore.ieee.org/document/9656569