Formation of Carbon-coated ZnFe2O4 Nanowires and Their Highly Reversible Lithium Storage Properties
SCIE
SCOPUS
- Title
- Formation of Carbon-coated ZnFe2O4 Nanowires and Their Highly Reversible Lithium Storage Properties
- Authors
- Jong Guk Kim; Youngmin Kim; Yuseong Noh; Kim, WB
- Date Issued
- 2014
- Publisher
- Royal Society of Chemistry
- Abstract
- In this paper, carbon-decorated ZnFe2O4 nanowires, having one-dimensional geometry with diameters of 70-150 nm and lengths of several micrometers, were prepared and used as a highly reversible lithium ion anode material. They can be obtained from calcination of glucose-coated ZnFe2(C2O4)(3) nanowires, which were prepared in glucose containing microemulsion solutions. The physicochemical properties of carbon-coated ZnFe2O4 nanowires were investigated by scanning electron microscopy, X-ray diffraction, Raman spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. The carbon-coated ZnFe2O4 nanowires showed a substantially increased discharge capacity of ca. 1285.1 mA h g(-1) at the first cycle as compared with non-carbon-coated ZnFe2O4 nanowires (ca. 1024.3 mA h g(-1)) and ZnFe2O4 nanoparticles (ca. 1148.7 mA h g(-1)). Moreover, the discharge capacity of the carbon-coated ZnFe2O4 nanowires was maintained with no degradation even after 100 charge/discharge cycles. The high cycling durability, rate capability, and coulombic efficiency suggest that the carbon-coated ZnFe2O4 nanowires prepared here can be promising anode candidates for a highly reversible lithiumstorage electrode.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/37778
- DOI
- 10.1039/C4RA02095B
- ISSN
- 2046-2069
- Article Type
- Article
- Citation
- RSC Advances, vol. 4, no. 53, page. 27714 - 27721, 2014
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