Sustainable organic electrodes using black soldier fly-derived melanin for zinc-ion hybrid capacitors
Pressing environmental challenges require focused research on sustainable solutions in the domains of energy, water, food, land, and climate. The pigment eumelanin has recently been positioned as a promising candidate for solving issues in health, sensors, and energy storage. However, the low solubi...
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sg-ntu-dr.10356-1804402024-10-11T15:47:03Z Sustainable organic electrodes using black soldier fly-derived melanin for zinc-ion hybrid capacitors Al-Shamery, Noah Gong, Xuefei Dosche, Carsten Gupta, Adit Tan, Matthew Wei Ming Phua, Jun Wei Lee, Pooi See School of Materials Science and Engineering Engineering Aqueous solvents Energy storage applications Pressing environmental challenges require focused research on sustainable solutions in the domains of energy, water, food, land, and climate. The pigment eumelanin has recently been positioned as a promising candidate for solving issues in health, sensors, and energy storage. However, the low solubility of eumelanin in aqueous solvents, difficult film processibility, and high cost have hindered the material from wide deployment. Here, we propose melanin extracted from the black soldier fly, Hermetia illucens (Mel-BSF), as a sustainable alternative for the preparation of organic electrodes in energy storage applications. Mel-BSF displays pseudocapacitive behaviour with a high potential window, good electrochemical stability, and higher maximum capacity (91.8 mAh g−1) compared to synthetic eumelanin (17.3 mAh g−1) as the working electrode material in zinc-ion hybrid capacitors using an ionic liquid electrolyte. Structural and surface investigations reveal that additional aliphatic compounds, potentially lipids present after Mel-BSF refinement, significantly increase the film stability and redox centre availability. Nanyang Technological University Published version N. A.-S. Also thankfully acknowledge the scholarship provided by the Singapore International Graduate Award from the Nanyang Technological University Singapore. We gratefully acknowledge Insectta, Singapore, for providing the black soldier fly melanin samples. We thank the German Research Foundation (DFG) for funding the XPS set-up (INST 184/144-1 FUGG). 2024-10-07T07:40:50Z 2024-10-07T07:40:50Z 2024 Journal Article Al-Shamery, N., Gong, X., Dosche, C., Gupta, A., Tan, M. W. M., Phua, J. W. & Lee, P. S. (2024). Sustainable organic electrodes using black soldier fly-derived melanin for zinc-ion hybrid capacitors. Communications Materials, 5(1), 156-. https://dx.doi.org/10.1038/s43246-024-00602-4 2662-4443 https://hdl.handle.net/10356/180440 10.1038/s43246-024-00602-4 2-s2.0-85201374098 1 5 156 en Communications Materials © 2024 The Author(s). Open Access. This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/bync-nd/4.0/. application/pdf |
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Engineering Aqueous solvents Energy storage applications Al-Shamery, Noah Gong, Xuefei Dosche, Carsten Gupta, Adit Tan, Matthew Wei Ming Phua, Jun Wei Lee, Pooi See Sustainable organic electrodes using black soldier fly-derived melanin for zinc-ion hybrid capacitors |
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Pressing environmental challenges require focused research on sustainable solutions in the domains of energy, water, food, land, and climate. The pigment eumelanin has recently been positioned as a promising candidate for solving issues in health, sensors, and energy storage. However, the low solubility of eumelanin in aqueous solvents, difficult film processibility, and high cost have hindered the material from wide deployment. Here, we propose melanin extracted from the black soldier fly, Hermetia illucens (Mel-BSF), as a sustainable alternative for the preparation of organic electrodes in energy storage applications. Mel-BSF displays pseudocapacitive behaviour with a high potential window, good electrochemical stability, and higher maximum capacity (91.8 mAh g−1) compared to synthetic eumelanin (17.3 mAh g−1) as the working electrode material in zinc-ion hybrid capacitors using an ionic liquid electrolyte. Structural and surface investigations reveal that additional aliphatic compounds, potentially lipids present after Mel-BSF refinement, significantly increase the film stability and redox centre availability. |
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School of Materials Science and Engineering |
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School of Materials Science and Engineering Al-Shamery, Noah Gong, Xuefei Dosche, Carsten Gupta, Adit Tan, Matthew Wei Ming Phua, Jun Wei Lee, Pooi See |
format |
Article |
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Al-Shamery, Noah Gong, Xuefei Dosche, Carsten Gupta, Adit Tan, Matthew Wei Ming Phua, Jun Wei Lee, Pooi See |
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Al-Shamery, Noah |
title |
Sustainable organic electrodes using black soldier fly-derived melanin for zinc-ion hybrid capacitors |
title_short |
Sustainable organic electrodes using black soldier fly-derived melanin for zinc-ion hybrid capacitors |
title_full |
Sustainable organic electrodes using black soldier fly-derived melanin for zinc-ion hybrid capacitors |
title_fullStr |
Sustainable organic electrodes using black soldier fly-derived melanin for zinc-ion hybrid capacitors |
title_full_unstemmed |
Sustainable organic electrodes using black soldier fly-derived melanin for zinc-ion hybrid capacitors |
title_sort |
sustainable organic electrodes using black soldier fly-derived melanin for zinc-ion hybrid capacitors |
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2024 |
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https://hdl.handle.net/10356/180440 |
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1814047173081300992 |