Enhanced Lithium-Ion Storage Capability of a Bismuth Sulfide/Graphene Oxide/Poly(3,4-ethylenedioxythiophene) Composite

Mukkabla, R and M, Deepa and Srivastava, A K (2015) Enhanced Lithium-Ion Storage Capability of a Bismuth Sulfide/Graphene Oxide/Poly(3,4-ethylenedioxythiophene) Composite. ChemPhysChem, 16 (15). pp. 3242-3253. ISSN 1439-4235

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Abstract

A Bi2S3/graphene oxide (GO) composite enwrapped by a poly(3,4-ethylenedioxythiophene) (PEDOT) coating was prepared for the first time for use as an anode in Li-ion batteries. Pristine Bi2S3 nanoflowers and composites of Bi2S3/GO and Bi2S3/GO/PEDOT were assembled into half cells with Li metal as the counter electrode, and initial discharge capacities of 833, 1020, and 1300 mAh g−1, respectively, were obtained. Composites of Bi2S3/GO/PEDOT and Bi2S3/GO showed superior cycling stability and better rate capability than pristine Bi2S3. GO provides highly conducting interconnections, which allow facile propagation of electrons during charge/discharge, and this improves the ion-uptake capability of the Bi2S3 nanoflowers and also increases the rate capability. PEDOT furnishes a protective coating that prevents detachment of the material from the current collector during cycling, and it also imparts better cycling stability to the Bi2S3/GO/PEDOT composite.

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IITH Creators:	IITH Creators ORCiD M, Deepa UNSPECIFIED
Item Type:	Article
Uncontrolled Keywords:	capacity;charge storage;conducting materials;polymers;nanoflowers
Subjects:	Chemistry > Inorganic chemistry
Divisions:	Department of Chemistry
Depositing User:	Team Library
Date Deposited:	15 Sep 2015 05:36
Last Modified:	18 Oct 2017 07:17
URI:	http://raiithold.iith.ac.in/id/eprint/1937
Publisher URL:	https://doi.org/10.1002/cphc.201500515
OA policy:	http://www.sherpa.ac.uk/romeo/issn/1439-4235/
Related URLs:	Google Scholar

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