Facile synthesis and characterization of Bi13S18I2 films as a stable supercapacitor electrode material
| Autor: | Tianyue Li, Job H. J. Thijssen, John Mallows, Neil Robertson, Alba Franco Gonzalez, Keir Adams |
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| Rok vydání: | 2019 |
| Předmět: |
Supercapacitor
Materials science Renewable Energy Sustainability and the Environment Annealing (metallurgy) chemistry.chemical_element 02 engineering and technology General Chemistry Electrolyte 021001 nanoscience & nanotechnology Capacitance law.invention Bismuth Capacitor X-ray photoelectron spectroscopy Chemical engineering chemistry law Electrode General Materials Science 0210 nano-technology |
| Zdroj: | Adams, K, González, A F, Mallows, J, Li, T, Thijssen, J H J & Robertson, N 2019, ' Facile synthesis and characterization of Bi13S18I2 films as a stable supercapacitor electrode material ', Journal of Materials Chemistry A: materials for energy and sustainability, vol. 7, no. 4, pp. 1638-1646 . https://doi.org/10.1039/C8TA11029H |
| ISSN: | 2050-7496 2050-7488 |
| Popis: | Electrical double layer capacitors (EDLCs) featuring low-cost and solution-processable electrode materials have attracted significant research interest for their green and economical applications in energy harvesting and storage devices. Here, we demonstrate a novel synthetic route for films of an underexplored 3-D hexagonal bismuth chalcohalide, Bi13S18I2, and investigate its potential as the active electrode material in EDLC-type supercapacitors. The synthetic procedure has been optimised and comprises the lowest annealing temperature (150 °C) and the shortest processing time (1 h) currently reported. When integrated in a symmetrical EDLC with an aqueous NaClO4 electrolyte, the Bi13S18I2-based device achieves a remarkable areal capacitance of 210.68 mF cm−2 with 99.7% capacitance retention after 5000 cycles. Both the Bi13S18I2 powder and thin-film electrodes have been characterized through XRD, XPS, Raman spectroscopy, and SEM. The superior stability, low-cost, and facile synthesis of Bi13S18I2 proves its promising potential for supercapacitor applications. |
| Databáze: | OpenAIRE |
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