PEDOT encapsulated ß-FeOOH nanorods: synthesis, characterization and application for sodium-ion batteries
Sodium-ion batteries (NIBs) are receiving attention again for emerging grid-scale energy storage needs. Exploring and developing NIB anode materials with excellent electrochemical properties from Earth-abundant elements are of important scientific and practical significance. Herein, we have designed...
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Published in | Electrochimica acta Vol. 238; p. 330 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Oxford
Elsevier BV
01.06.2017
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Subjects | |
Online Access | Get full text |
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Summary: | Sodium-ion batteries (NIBs) are receiving attention again for emerging grid-scale energy storage needs. Exploring and developing NIB anode materials with excellent electrochemical properties from Earth-abundant elements are of important scientific and practical significance. Herein, we have designed poly(3,4-ethylenedioxythiophene) (PEDOT) encapsulated β-FeOOH nanorods as NIB anodes, which can be synthesized through a two-step method including surfactant-assisted hydrothermal synthesis of β-FeOOH nanorods and encapsulation of the obtained nanorods. The β-FeOOH@PEDOT nanorodes deliver a high discharge capacity of 726 mAh g-1 and maintain the reversible capacity of 468 mAh g-1 over fifty cycles. Based on a series of detailed characterizations and comparison experiments, we analyzed the sodium storage process of β-FeOOH@PEDOT nanorodes and proposed the causation of PEDOT shells improving electrochemical properties. |
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ISSN: | 0013-4686 1873-3859 |