View : 23 Download: 0

Efficient electrode material of restacked Na-V2O5-graphene nanocomposite for Na-ion batteries

Title
Efficient electrode material of restacked Na-V2O5-graphene nanocomposite for Na-ion batteries
Authors
Park, BoyeonOh, Seung MiJo, Yun KyungHwang, Seong-Ju
Ewha Authors
황성주
SCOPUS Author ID
황성주scopus
Issue Date
2016
Journal Title
MATERIALS LETTERS
ISSN
0167-577XJCR Link1873-4979JCR Link
Citation
vol. 178, pp. 79 - 82
Keywords
NanosheetsRestackingNanocompositesReduced graphene oxideVanadium oxideNa-ion batteries
Publisher
ELSEVIER SCIENCE BV
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Efficient electrode material of Na-V2O5-reduced graphene oxide (rG-O) nanocomposite is synthesized by the restacking of anionic component nanosheets with Na+ ions at room temperature. The restacked Na-V2O5-rG-O nanocomposite shows layer-by-layer-ordered structure of V2O5/rG-O nanosheets and Na+ ions with mesoporous stacking structure and expanded surface area. Upon the restacking with rG-O, the pentavalent V5+ oxidation state and layered lattice of vanadium oxide nanosheet remain unchanged. The composite formation with rG-O leads to a significant enhancement of the discharge capacity from 50 to 150 mAh g(-1) as cathode material for Na-ion batteries, underscoring the usefulness of restacking between metal oxide and rG-O nanosheets in exploring novel nanocomposite electrode materials. (C) 2016 Elsevier B.V. All rights reserved.
DOI
10.1016/j.matlet.2016.04.161
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

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

BROWSE