Amorphous cellulose nanofiber supercapacitors

Abstract Despite the intense interest in cellulose nanofibers (CNFs) for biomedical and engineering applications, no research findings about the electrical energy storage of CNF have been reported yet. Here, we present the first electroadsorption effects of an amorphous cellulose nanofiber (ACF) sup...

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Autores principales:	Mikio Fukuhara, Tomoyuki Kuroda, Fumihiko Hasegawa, Toshiyuki Hashida, Mitsuhiro Takeda, Nobuhisa Fujima, Masahiro Morita, Takeshi Nakatani
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b29f2bba61a2492db47807f896e07100
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spelling	oai:doaj.org-article:b29f2bba61a2492db47807f896e071002021-12-02T13:18:09ZAmorphous cellulose nanofiber supercapacitors10.1038/s41598-021-85901-32045-2322https://doaj.org/article/b29f2bba61a2492db47807f896e071002021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85901-3https://doaj.org/toc/2045-2322Abstract Despite the intense interest in cellulose nanofibers (CNFs) for biomedical and engineering applications, no research findings about the electrical energy storage of CNF have been reported yet. Here, we present the first electroadsorption effects of an amorphous cellulose nanofiber (ACF) supercapacitor, which can store a large amount of electricity (221 mJm−2, 13.1 Wkg−1). The electric storage can be attributed to the entirely enhanced electroadsorption owing to a quantum-size effect by convexity of 17.9 nm, an offset effect caused by positive polar C6=O6 radicles, and an electrostatic effect by appearance of the localised electrons near the Na ions. The supercapacitor also captures both positive and negative electricity from the atmosphere and in vacuum. The supercapacitor could illuminate a red LED for 1 s after charging it with 2 mA at 10 V. Further gains might be attained by integrating CNF specimens with a nano-electromechanical system (NEMS).Mikio FukuharaTomoyuki KurodaFumihiko HasegawaToshiyuki HashidaMitsuhiro TakedaNobuhisa FujimaMasahiro MoritaTakeshi NakataniNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mikio Fukuhara Tomoyuki Kuroda Fumihiko Hasegawa Toshiyuki Hashida Mitsuhiro Takeda Nobuhisa Fujima Masahiro Morita Takeshi Nakatani Amorphous cellulose nanofiber supercapacitors
description	Abstract Despite the intense interest in cellulose nanofibers (CNFs) for biomedical and engineering applications, no research findings about the electrical energy storage of CNF have been reported yet. Here, we present the first electroadsorption effects of an amorphous cellulose nanofiber (ACF) supercapacitor, which can store a large amount of electricity (221 mJm−2, 13.1 Wkg−1). The electric storage can be attributed to the entirely enhanced electroadsorption owing to a quantum-size effect by convexity of 17.9 nm, an offset effect caused by positive polar C6=O6 radicles, and an electrostatic effect by appearance of the localised electrons near the Na ions. The supercapacitor also captures both positive and negative electricity from the atmosphere and in vacuum. The supercapacitor could illuminate a red LED for 1 s after charging it with 2 mA at 10 V. Further gains might be attained by integrating CNF specimens with a nano-electromechanical system (NEMS).
format	article
author	Mikio Fukuhara Tomoyuki Kuroda Fumihiko Hasegawa Toshiyuki Hashida Mitsuhiro Takeda Nobuhisa Fujima Masahiro Morita Takeshi Nakatani
author_facet	Mikio Fukuhara Tomoyuki Kuroda Fumihiko Hasegawa Toshiyuki Hashida Mitsuhiro Takeda Nobuhisa Fujima Masahiro Morita Takeshi Nakatani
author_sort	Mikio Fukuhara
title	Amorphous cellulose nanofiber supercapacitors
title_short	Amorphous cellulose nanofiber supercapacitors
title_full	Amorphous cellulose nanofiber supercapacitors
title_fullStr	Amorphous cellulose nanofiber supercapacitors
title_full_unstemmed	Amorphous cellulose nanofiber supercapacitors
title_sort	amorphous cellulose nanofiber supercapacitors
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b29f2bba61a2492db47807f896e07100
work_keys_str_mv	AT mikiofukuhara amorphouscellulosenanofibersupercapacitors AT tomoyukikuroda amorphouscellulosenanofibersupercapacitors AT fumihikohasegawa amorphouscellulosenanofibersupercapacitors AT toshiyukihashida amorphouscellulosenanofibersupercapacitors AT mitsuhirotakeda amorphouscellulosenanofibersupercapacitors AT nobuhisafujima amorphouscellulosenanofibersupercapacitors AT masahiromorita amorphouscellulosenanofibersupercapacitors AT takeshinakatani amorphouscellulosenanofibersupercapacitors
_version_	1718393291584569344

Amorphous cellulose nanofiber supercapacitors

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