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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 22/2018

18.09.2018

Mixed-valent CoxO–Ag/carbon nanofibers as binder-free and conductive-free electrode materials for high supercapacitor

verfasst von: Xingwei Sun, Chunping Li, Jie Bai

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 22/2018

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Abstract

The composite materials, carbon nanofibers-based cobalt oxide and Ag (CoxO–Ag/CNFs) were fabricated through a facile electrospinning method followed by calcination. They were Co2+–Ag/CNFs, Co2+@Co3+–Ag/CNFs. And the Co2+@Co3+–Ag/CNFs sample was obtained through transform Co2+–Co3+ partially by the catalytic oxidation performance of silver, instead of the traditional high-temperature calcination process. Meanwhile, the high conductive of Ag can promote the transportation of electrons and ions between the electrode and electrolyte. The flexible composite materials as free-standing and additive-free film electrodes for supercapacitors. In virtue of the presence of Ag, the composite materials have better conductivity and supercapacitor performance than Co/CNFs-based electrode. Interestingly, the sample of Co2+–Ag/CNFs has a higher capacitors than Co2+@Co3+–Ag/CNFs sample, that indicates the supercapacitor performance has an important relationship with the valence state of cobalt.
Vorheriger Artikel Enhanced photoluminescence and charge density studies of novel (Sm1−x Gdx)2O3 nanophosphors for WLED applications
Nächster Artikel Template-free synthesis of uniform rose-like MoS2 hierarchitectures and their enhanced photocatalytic properties

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Metadaten
Titel
Mixed-valent CoxO–Ag/carbon nanofibers as binder-free and conductive-free electrode materials for high supercapacitor
verfasst von
Xingwei Sun
Chunping Li
Jie Bai
Publikationsdatum
18.09.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 22/2018
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-018-0067-0

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