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Facile synthesis and characterization of Bi13S18I2 films as a stable supercapacitor electrode material
- Source :
- 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
- Publication Year :
- 2019
- Publisher :
- Royal Society of Chemistry (RSC), 2019.
-
Abstract
- 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.
- Subjects :
- 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
Subjects
Details
- ISSN :
- 20507496 and 20507488
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Chemistry A
- Accession number :
- edsair.doi.dedup.....1e5d758a5e14dcf114ff0b7c5a407453