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Engineering Na-Mo-O/Graphene Oxide Composites with Enhanced Electrochemical Performance for Lithium Ion Batteries.
- Source :
-
ChemistryOpen [ChemistryOpen] 2019 Aug 29; Vol. 8 (10), pp. 1225-1229. Date of Electronic Publication: 2019 Aug 29 (Print Publication: 2019). - Publication Year :
- 2019
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Abstract
- Sodium molybdate (Na-Mo-O) wrapped by graphene oxide (GO) composites have been prepared via a simple in-situ precipitation method at room temperature. The composites are mainly constructed with one dimension (1D) ultra-long sodium molybdate nanorods, which are wrapped by the flexible GO. The introduction of GO is expected to not merely provide more active sites for lithium-ions storage, but also improve the charge transfer rate of the electrode. The testing electrochemical performances corroborated the standpoint: The Na-Mo-O/GO composites delivers specific capacities of 718 mAh g <superscript>-1</superscript> after 100 cycles at 100 mA g <superscript>-1</superscript> , and 570 mAh g <superscript>-1</superscript> after 500 cycles at a high rate of 500 mA g <superscript>-1</superscript> ; for comparison, the bare Na-Mo-O nanorod shows a severe capacity decay, which deliver only 332 mAh g <superscript>-1</superscript> after 100 cycles at 100 mA g <superscript>-1</superscript> . In view of the cost-efficient and less time-consuming in synthesis, and one-step preparation without further treatment, these Na-Mo-O nanorods/GO composites present potential and prospective anodes for LIBs.<br />Competing Interests: The authors declare no conflict of interest.<br /> (©2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.)
Details
- Language :
- English
- ISSN :
- 2191-1363
- Volume :
- 8
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- ChemistryOpen
- Publication Type :
- Academic Journal
- Accession number :
- 31592407
- Full Text :
- https://doi.org/10.1002/open.201900205