Renewable Carbon Materials as Electrodes for High-Performance Supercapacitors: From Marine Biowaste to High Specific Surface Area Porous Biocarbons

Autor: Ana T. S. C. Brandão, Sabrina State, Renata Costa, Pavel Potorac, José A. Vázquez, Jesus Valcarcel, A. Fernando Silva, Liana Anicai, Marius Enachescu, Carlos M. Pereira
Přispěvatelé: European Commission, Ministry of Research, Innovation and Digitalization (Rumanía), Xunta de Galicia
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Popis: 17 pages, 11 figures, 3 tables.-- Open access
Waste, in particular, biowaste, can be a valuable source of novel carbon materials. Renewable carbon materials, such as biomass-derived carbons, have gained significant attention recently as potential electrode materials for various electrochemical devices, including batteries and supercapacitors. The importance of renewable carbon materials as electrodes can be attributed to their sustainability, low cost, high purity, high surface area, and tailored properties. Fish waste recovered from the fish processing industry can be used for energy applications and prioritizing the circular economy principles. Herein, a method is proposed to prepare a high surface area biocarbon from glycogen extracted from mussel cooking wastewater. The biocarbon materials were characterized using a Brunauer–Emmett–Teller surface area analyzer to determine the specific surface area and pore size and by scanning electron microscopy coupled with energy-dispersive X-ray analysis, Raman analysis, attenuated total reflectance Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and transmission electron microscopy. The electrochemical characterization was performed using a three-electrode system, utilizing a choline chloride-based deep eutectic solvent (DES) as an eco-friendly and sustainable electrolyte. Optimal time and temperature allowed the preparation of glycogen-based carbon materials, with a specific surface area of 1526 m2 g–1, a pore volume of 0.38 cm3 g–1, and an associated specific capacitance of 657 F g–1 at a current density of 1 A g–1, at 30 °C. The optimal material was scaled up to a two-electrode supercapacitor using a DES-based solid-state electrolyte (SSE@DES). This prototype delivered a maximum capacitance of 703 F g–1 at a 1 A g–1 of current density, showing 75% capacitance retention over 1000 cycles, delivering the highest energy density of 0.335 W h kg–1 and power density of 1341 W kg–1. Marine waste can be a sustainable source for producing nanoporous carbon materials to be incorporated as electrode materials in energy storage devices
This work was financially supported by the FCT under Research Grants UIDB/00081/2020–CIQUP, LA/P/0056/2020 (IMS), and H2Innovate NORTE-01-0145-FEDER-000076. This work was supported by the Romanian Ministry of Research, Innovation and Digitalization, Romania, under JINR-RO Project no. 91 Code Theme 04–4–1133–2018/2023, grant no. 37/2021, and ECSEL-H2020 projects: PIn3S Contract no. 10/1.1.3H/03.04.2020 Code MySMIS 135127 and BEYOND5 Contract no. 12/1.1.3H/31.07.2020 Code MySMIS 136877. J.A.V. and J.V. thank Xunta de Galicia (Grupos de Potential Crecimiento, IN607B 2021/11) for financial support . A.T.S.C.B. thanks the scholarship awarded by FCT with reference No. 2021.04783.BD and the Schwäbisch Gmünd Scientific Exchange Grant awarded by the European Academy of Surface Technology. R.C. thanks FCT for funding through the program DL 57/2016–Norma transitória (SFRH/BPD/89752/2012)
Databáze: OpenAIRE
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