In-doped Bi2Se3 hierarchical nanostructures as anode materials for Li-ion batteries

Han, Guang and Chen, Zhi-Gang and Ye, Delai and Yang, Lei and Wang, Lianzhou and Drennan, John and Zou, Jin (2014) In-doped Bi2Se3 hierarchical nanostructures as anode materials for Li-ion batteries. Journal of Materials Chemistry A, 2 (19). pp. 7109-7116. ISSN 2050-7488

Abstract

In-doped Bi2Se3 hierarchical nanostructures have been synthesized by an in situ cation exchange route from their template of In 3Se4 nanostructures. Through detailed structural, chemical, and morphological characterizations, it has been found that, after the cation exchange, the In-doped Bi2Se3 hierarchical nanostructures preserve the morphology of original In3Se4 thin nanosheet-assembled nanostructures, and the layer structure transforms from 7 atomic layers of 'Se-In-Se-In-Se-In-Se' into 5 atomic layers of 'Se-Bi-Se-Bi-Se'. The electrochemical measurements reveal that the synthesized In-doped Bi2Se3 hierarchical nanostructures show much better discharge capacity, improved cycle stability, and rate performance as an anode material for Li-ion batteries compared to its undoped counterparts.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 21 Jun 2017 01:52
Last Modified: 21 Jun 2017 01:52
Uncontrolled Keywords: cation exchanges; discharge capacities; electrochemical measurements; hierarchical nanostructures; layer structures; Li-ion batteries; morphological characterization; rate performance; alkali metals; others, incl. Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium; nanotechnology; chemistry; chemical plants and equipment; solid state physics
Fields of Research : 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030302 Nanochemistry and Supramolecular Chemistry
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Identification Number or DOI: 10.1039/c4ta00045e
URI: http://eprints.usq.edu.au/id/eprint/31698

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