Facile Synthesis and Characterization of Bi13S18I2 Films as a Stable Supercapacitor Electrode Material
Date Available
2018-12-21Type
datasetData Creator
Robertson, NeilAdams, Keir
Franco Gonzalez, Alba
Mallows, John
Li, Tianyue
Thijssen, Job
Publisher
University of Edinburgh, School of ChemistryRelation (Is Referenced By)
https://pubs.rsc.org/en/Content/ArticleLanding/2018/TA/C8TA11029HMetadata
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Citation
Robertson, Neil; Adams, Keir; Franco Gonzalez, Alba; Mallows, John; Li, Tianyue; Thijssen, Job. (2018). Facile Synthesis and Characterization of Bi13S18I2 Films as a Stable Supercapacitor Electrode Material, [dataset]. University of Edinburgh, School of Chemistry. https://doi.org/10.7488/ds/2479.Description
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.The following licence files are associated with this item: