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A 2D Metal Oxide Nanosheet as an Efficient Additive for Improving Na-Ion Electrode Activity of Graphene-Based Nanocomposites

Title
A 2D Metal Oxide Nanosheet as an Efficient Additive for Improving Na-Ion Electrode Activity of Graphene-Based Nanocomposites
Authors
Park, BoyeonOh, Seung MiJin, XiaoyanAdpakpang, KanyapornLee, Nam-SukHwang, Seong-Ju
Ewha Authors
황성주
SCOPUS Author ID
황성주scopus
Issue Date
2017
Journal Title
CHEMISTRY-A EUROPEAN JOURNAL
ISSN
0947-6539JCR Link1521-3765JCR Link
Citation
vol. 23, no. 27, pp. 6544 - 6551
Keywords
composite materialsgraphenemetal chalcogenideNa-ion batteriesnanosheets
Publisher
WILEY-V C H VERLAG GMBH
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
An efficient way to improve the Na-ion electrode activity of graphene-based nanocomposite is developed by employing exfoliated metal oxide nanosheet as an additive. The titanate-nanosheet-incorporated Na-SnS2-reduced graphene oxide (rG-O) nanocomposites can be synthesized by the electrostatically derived restacking of the colloidal mixture of SnS2, rG-O, and titanate nanosheets with the Na+ cation. The incorporation of titanate into the Na-SnS2-rG-O nanocomposites is effective in improving the nanoscale mixing of component nanosheets and the porosity of the composite structure. The resulting nanocomposites deliver superior discharge capacities and rate properties to the titanate-free nanocomposite. The universal applicability is further confirmed by MoS2-rG-O nanocomposites upon the addition of titanate. This study highlights that the exfoliated metal oxide nanosheet can be used as an efficient additive for graphene-based nanocomposites to explore Na-ion electrode materials.
DOI
10.1002/chem.201605192
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자연과학대학 > 화학·나노과학전공 > Journal papers
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