Amorphous cellulose nanofiber supercapacitors with voltage-charging performance

The electric charge storage properties of amorphous cellulose nanofiber (ACF) supercapacitors with different metal carboxylate radicals (COOM; M: Na(I), Ca(II), Al(III)) was investigated in terms of charging/discharging behaviours, alternating current impedance analysis, and plane-wave-based first-p...

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Detalles Bibliográficos
Autores principales: Fukuhara, Mikio, Yokotsuka, Tomonori, Hashida, Toshiyuki, Miwa, Tamon, Fujima, Nobuhisa, Morita, Masahiro, Nakatani, Takeshi, Nonomura, Fuminari
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8980078/
https://www.ncbi.nlm.nih.gov/pubmed/35379886
http://dx.doi.org/10.1038/s41598-022-09649-0
Descripción
Sumario:The electric charge storage properties of amorphous cellulose nanofiber (ACF) supercapacitors with different metal carboxylate radicals (COOM; M: Na(I), Ca(II), Al(III)) was investigated in terms of charging/discharging behaviours, alternating current impedance analysis, and plane-wave-based first-principles density functional calculations. Na-ACF exhibited a higher storage effect than Ca- and Al-ACFs. The charge storage mechanism for an Na-ACF supercapacitor was proposed using an electric double layer model in a C(12)H(17)O(11)Na electrolyte with an electrical resistivity of 6.8 × 10(3) Ω cm, based on the migration of protonic soliton. The supercapacitor, which demonstrated fast charging upon voltage application, could illuminate a white LED for 7 s after charging with 10 mA at 18.5 V.

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