Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/126737
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Flexible quasi-solid-state sodium-ion capacitors developed using 2D metal–organic-framework array as reactor
Author: Xu, D.
Chao, D.
Wang, H.
Gong, Y.
Wang, R.
He, B.
Hu, X.
Fan, H.
Citation: Advanced Energy Materials, 2018; 8(13):1702769-1-1702769-11
Publisher: Wiley
Issue Date: 2018
ISSN: 1614-6832
1614-6840
Statement of
Responsibility: 
Dongming Xu, Dongliang Chao, Huanwen Wang, Yansheng Gong, Rui Wang, Beibei He, Xianluo Hu, and Hong Jin Fan
Abstract: Achieving high‐performance Na‐ion capacitors (NICs) has the particular challenge of matching both capacity and kinetics between the anode and cathode. Here a high‐power NIC full device constructed from 2D metal–organic framework (MOFs) array is reported as the reactive template. The MOF array is converted to N‐doped mesoporous carbon nanosheets (mp‐CNSs), which are then uniformly encapsulated with VO₂ and Na₃V₂(PO₄)₃ (NVP) nanoparticles as the electroactive materials. By this method, the high‐power performance of the battery materials is enabled to be enhanced significantly. It is discovered that such hybrid NVP@mp‐CNSs array can render ultrahigh rate capability (up to 200 C, equivalent to discharge within 18 s) and superior cycle performance, which outperforms all NVP‐based Na‐ion battery cathodes reported so far. A quasi‐solid‐state flexible NIC based on the NVP@mp‐CNSs cathode and the VO₂@mp‐CNSs anode is further assembled. This hybrid NIC device delivers both high energy density and power density as well as a good cycle stability (78% retention after 2000 cycles at 1 A g⁻¹). The results demonstrate the powerfulness of MOF arrays as the reactor for fabricating electrode materials.
Keywords: Asymmetric supercapacitors; hybrid batteries; metal–organic frameworks; Na₃V₂(PO₄)₃; sodium-ion capacitors
Rights: © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
DOI: 10.1002/aenm.201702769
Appears in Collections:Aurora harvest 8
Chemical Engineering publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.