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Author Yi, Yeongjae ♦ Shim, Hyun-Woo ♦ Seo, Seung-Deok ♦ Dar, Mushtaq Ahmad ♦ Kim, Dong-Wan
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ANODES ♦ ANTIMONY ♦ COMPOSITE MATERIALS ♦ ELECTROCHEMISTRY ♦ FIELD EMISSION ♦ GRAPHENE ♦ LITHIUM ION BATTERIES ♦ MICROSTRUCTURE ♦ NANOCOMPOSITES ♦ NANOPARTICLES ♦ NANOSTRUCTURES ♦ SCANNING ELECTRON MICROSCOPY ♦ SYNTHESIS ♦ TEMPERATURE RANGE 0273-0400 K ♦ TRANSMISSION ELECTRON MICROSCOPY ♦ X-RAY DIFFRACTION
Abstract Highlights: • Antimony-graphene nanocomposite (Sb-GNP) was prepared by a wet-chemical approach. • Sb-GNP exhibits the well-dispersed Sb nanoparticles anchored on the graphenes. • Sb-GNP shows highly reversible capacities in both Li- and Na-storage. - Abstract: Antimony-graphene nanocomposite (Sb-GNP) was prepared from commercially available graphene nanoplatelets (GNPs) by a simple wet-chemical route at room temperature, and systematically investigated as an anode material for both lithium- and sodium-ion batteries (LIBs and NIBs). The microstructural features of Sb-GNP, and of pure Sb nanoparticles prepared without addition of GNPs, were characterized using X-ray diffraction, field-emission scanning electron microscopy, and high-resolution transmission electron microscopy. The successful formation of a nanocomposite structure was observed for Sb-GNP; the Sb nanoparticles are well dispersed and anchored on graphene nanoplatelets without significant aggregation of Sb nanoparticles, in contrast to the pure Sb nanoparticles. Furthermore, galvanostatic studies revealed that Sb-GNP displays better Li- and Na-storage performance than the pure Sb nanoparticles when utilized as an anode material. The enhanced electrochemical performance can be attributed to the effects of nanocomposite formation with GNPs.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-04-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 76


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