Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/144871
Title: Al2O3-assisted confinement synthesis of oxide/carbon hollow composite nanofibers and application in metal-ion capacitors
Authors: Mao, Zhifei
Wang, Huanwen
Chao, Dongliang
Wang, Rui
He, Beibei
Gong, Yansheng
Fan, Hong Jin
Keywords: Engineering::Materials
Issue Date: 2020
Source: Mao, Z., Wang, H., Chao, D., Wang, R., He, B., Gong, Y., & Fan, H. J. (2020). Al2O3-assisted confinement synthesis of oxide/carbon hollow composite nanofibers and application in metal-ion capacitors. Small, 16(33), e2001950-. doi:10.1002/smll.202001950
Journal: Small
Abstract: Hollow micro-/nanostructures are widely explored for energy applications due to their unique structural advantages. The synthesis of hollow structures generally involves a "top-down" casting process based on hard or soft templates. Herein, a new and generic confinement strategy is developed to fabricate composite hollow fibers. A thin and homogeneous atomic-layer-deposition (ALD) Al2 O3 layer is employed to confine the pyrolysis of precursor fibers, which transform into metal (or metal oxide)-carbon composite hollow fibers after removal of Al2 O3 . Because of the uniform coating by ALD, the resultant composite hollow fibers exhibit a hollow interior from heads to ends even if they are millimeter long. V, Fe, Co, and Ni-based hollow nanofibers, demonstrating the versatility of this synthesis method, are successfully synthesized. Because of the carbon constituent, these composite fibers are particularly useful for energy applications. Herein, the as-obtained hollow V2 O3 -C fiber membrane is employed as a freestanding and flexible electrode for lithium-ion capacitor. The device shows an impressive energy density and a high power density.
URI: https://hdl.handle.net/10356/144871
ISSN: 1613-6829
DOI: 10.1002/smll.202001950
Rights: This is the accepted version of the following article: Mao, Z., Wang, H., Chao, D., Wang, R., He, B., Gong, Y., & Fan, H. J. (2020). Al2O3-assisted confinement synthesis of oxide/carbon hollow composite nanofibers and application in metal-ion capacitors. Small, 16(33), e2001950-. doi:10.1002/smll.202001950, which has been published in final form at 10.1002/smll.202001950. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html].
Fulltext Permission: embargo_20210827
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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  Until 2021-08-27
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