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Artikel ; Online: Impact of Acetate‐Based Hydrogel Electrolyte on Electrical Performance and Stability of Eco‐Friendly Supercapacitors

Dr. Giovanni Landi / Dr. Luca La Notte / Dr. Veronica Granata / Dr. Guerino Avallone / Prof. Carlo Barone / Prof. Giovanni Carapella / Prof. Sergio Pagano / Dr. Alessandro Lorenzo Palma / Dr. Paolo Sdringola / Dr. Giovanni Puglisi

ChemElectroChem, Vol 10, Iss 23, Pp n/a-n/a (2023)

2023  

Abstract: Abstract The electrochemical characteristics and stability of hydrogel‐based environmentally friendly supercapacitors employing sodium acetate as salt have been investigated. To ensure the overall sustainability of the devices, chitosan (a biomaterial ... ...

Abstract Abstract The electrochemical characteristics and stability of hydrogel‐based environmentally friendly supercapacitors employing sodium acetate as salt have been investigated. To ensure the overall sustainability of the devices, chitosan (a biomaterial from renewable resources) and activated carbon (derived from coconut shells) have been used as a binder and filler within the electrodes, respectively. Cyclic voltammetry, galvanostatic charge/discharge, and impedance spectroscopy measurements have been performed to compare the electrochemical properties of the fabricated devices. Compared to reference electrolytes containing NaCl, the utilization of sodium acetate exhibited enhancements in energy performance and stability up to 50000 cycles. The most efficient device has been delivered approximately 10.6 Wh/kg of energy at a high‐power density of about 3940 W/kg. A comprehensive investigation of the electrochemical performances has been carried out, considering both faradaic and non‐faradaic processes as charge storage mechanisms within the devices. A model has been proposed to describe the storage mechanisms and to provide insights into the ageing phenomena observed during the cycling procedure.
Schlagwörter Charge storage mechanisms ; Cyclic voltammetry ; Gel-polymer electrolyte ; Sodium acetate ; Sustainable Chemistry ; Industrial electrochemistry ; TP250-261 ; Chemistry ; QD1-999
Thema/Rubrik (Code) 621
Sprache Englisch
Erscheinungsdatum 2023-12-01T00:00:00Z
Verlag Wiley-VCH
Dokumenttyp Artikel ; Online
Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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