AI Article Synopsis
- - The study explores a method to create chitosan-based nitrogen-doped carbon aerogels and their composites for use in supercapacitors, focusing on varying the composition and carbonization temperatures.
- - The optimal aerogel, CNCO-2, carbonized at 300 °C, demonstrated impressive properties, achieving a specific capacitance of 1200 F/g and maintaining over 87% performance after 10,000 cycles.
- - The CCS//CNCO-2 device showcased a high energy density of 53 Wh/kg and effective scalability through series and parallel connections, indicating its potential for versatile energy storage solutions.
Article Abstract
This work presents a multi-step strategy to fabricate chitosan-derived nitrogen-doped carbon (CCS) and CCS/NiCoO (CNCO) aerogels for supercapacitor application. The various mass fractions of NiCo precursors and chitosan as well as different carbonization temperatures, were investigated. The best rationally designed aerogel carbonized at 300 °C (CNCO-2) had the highest specific surface area and nitrogen content. It exhibited a high capacitance of 1200 F g at 1.0 A g as an active electrode material for supercapacitors. In addition, the fully solid-state CCS//CNCO-2 device had a high capacitance of 172 F g at 1.0 A g and excellent cyclic stability (over 87 % capacitance retention after 10,000 cycles). This device displayed a maximum energy density of 53 Wh kg at 750 W kg. Furthermore, two devices connected in series and parallel indicate typical voltage and capacitance expansion, highlighting practicable applications of chitosan-derived aerogel composites to meet different requirements in energy storage.
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| http://dx.doi.org/10.1016/j.ijbiomac.2024.136846 | DOI Listing |
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